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National 2457 Automatic Transmission Extension Housing SealOE Quality 60-Day Returns
Part #: 2457

National 2457 Automatic Transmission Extension Housing Seal

362 vehicles fit this part
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Fitment: Chevrolet, GMC, Hummer, and Workhorse, Express 2500, Express 3500, Savana 2500, Savana 3500, Silverado 2500 HD Classic, Silverado 3500 Classic, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500 Classic, Silverado 2500 HD, Silverado 3500, Sierra 3500, Silverado 2500, Sierra 2500, H1, FasTrack FT1061, FasTrack FT1261, FasTrack FT1461, FasTrack FT1601, FasTrack FT1801, FasTrack FT1802, FasTrack FT931, P30, Avalanche 2500, Suburban 2500, Yukon, Yukon XL 1500, Yukon XL 2500, FasTrack FT1460, Sierra 1500, FasTrack FT1260, FasTrack FT1600, FasTrack FT1800, C2500, C3500, K2500, K3500, C1500, C1500 Suburban, C2500 Suburban, K1500, K1500 Suburban, K2500 Suburban, Tahoe, P3500, G30, G3500, Savana 1500, G20, G2500, Blazer, R1500 Suburban, R2500 Suburban, R3500, V1500 Suburban, V2500 Suburban, V3500, and Jimmy
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Not what you need? See all Automatic Transmission Extension Housing Seal options

Overview of National 2457 Automatic Transmission Extension Housing Seal

The National 2457 Automatic Transmission Extension Housing Seal is engineered to provide reliable sealing performance for various Chevrolet, GMC, and Hummer models. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain transmission integrity and prevent fluid leaks.

  • Inside diameter: 2.125 inches (53.980 mm)
  • Outside diameter: 2.885 inches (73.280 mm)
  • Flanged outside diameter: 3.150 inches (80.010 mm)
  • Thickness: 0.550 inches (13.970 mm)
  • Counter-clockwise spiral lip design for effective sealing
  • Constructed from polyacrylate material for durability
  • Redicoat treatment for enhanced wear resistance
  • Compatible with housing bore of 2.880 inches (73.150 mm)

Detailed Product Description and Specifications

The National 2457 seal is part of the Series 2000 line, known for its reliable sealing solutions in transmission applications. This automatic transmission extension housing seal features a 74-type design with a counter-clockwise spiral lip, which ensures a tight seal around the shaft and housing bore. The polyacrylate material offers resistance to heat and transmission fluids, while the Redicoat coating improves longevity by reducing wear. With precise dimensions including a 2.125-inch inside diameter and a 2.885-inch outside diameter, this seal fits securely in the extension housing to prevent oil leaks and contamination.

Compatible Vehicles and Applications

This transmission extension housing seal is compatible with a wide range of Chevrolet, GMC, and Hummer vehicles, including but not limited to:

  • Chevrolet Silverado 2500, 2500 HD, 3500, and Suburban 2500
  • GMC Sierra 1500, 2500, 2500 HD, 3500, and Yukon XL 1500/2500
  • Hummer H1
  • Chevrolet Avalanche 2500, Blazer, C1500, C2500, C3500, Express 2500/3500
  • GMC Jimmy, K1500, K2500, K3500, P30, P3500, R1500 Suburban, R2500 Suburban, R3500
  • Chevrolet Tahoe, Savana 1500/2500/3500, V1500 Suburban, V2500 Suburban, V3500

Common Issues Addressed by the National 2457 Seal

  • Prevents automatic transmission fluid leaks from the extension housing
  • Reduces contamination ingress that can damage transmission components
  • Maintains proper sealing under high temperature and pressure conditions
  • Minimizes wear on the transmission shaft and housing interface
  • Helps avoid costly transmission repairs due to seal failure

Installation Notes and Tips

  • Ensure the housing bore and shaft are clean and free of debris before installation
  • Use appropriate tools to press the seal evenly into the housing bore without distortion
  • Verify the seal’s orientation matches the counter-clockwise spiral lip design for optimal sealing
  • Check shaft surface for wear or damage that could compromise seal performance
  • Apply a light coating of transmission fluid on the seal lip before installation to reduce initial wear

Quality Assurance and Warranty

National’s 2457 transmission extension housing seal is manufactured to meet industry standards for durability and performance. The polyacrylate material and Redicoat treatment contribute to extended service life under demanding conditions. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects, ensuring confidence in the seal’s quality and reliability.

BrandNational
Part Number2457
Flanged Outside Diameter (Inch)3.150
Flanged Outside Diameter (MM)80.010
Helix TypeCounter-Clockwise-Spiral Lip Design
Housing Bore (Inch)2.880
Housing Bore (MM)73.150
Inside Diameter2.125
Inside Diameter53.980
MaterialPolyacrylate
Outside Diameter2.885
Outside Diameter73.280
Outside Diameter (Inch)2.885
Outside Diameter (mm)73.280
Part DescriptionOil Seal
RedicoatYes
Series2000
Shaft (Inch)2.125
Shaft (MM)53.980
Thickness0.550
Thickness13.970
Type74
Unit of DimensionInch
Width (Inch)0.550
Width (mm)13.970

This part fits 362 vehicles. Search below:

YearMakeModelSubmodelTransmissionPositionNotes
2009ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2009ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2009GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2009GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2008ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2008ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2008GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2008GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2007ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2007ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2007ChevroletSilverado 2500 HD ClassicAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2007ChevroletSilverado 3500 ClassicAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2007GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2007GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2007GMCSierra 2500 HDAutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
2007GMCSierra 2500 HD ClassicAutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
2007GMCSierra 2500 HD ClassicAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2007GMCSierra 3500 ClassicAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2006ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2006ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2006ChevroletSilverado 2500 HDAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2006ChevroletSilverado 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2006GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2006GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2006GMCSierra 2500 HDAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2006GMCSierra 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2005ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2005ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2005ChevroletSilverado 2500 HDAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2005ChevroletSilverado 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2005GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2005GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2005GMCSierra 2500 HDAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2005GMCSierra 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2004ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2004ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2004ChevroletSilverado 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2004ChevroletSilverado 2500 HDAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2004ChevroletSilverado 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2004GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2004GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2004GMCSierra 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2004GMCSierra 2500 HDAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2004GMCSierra 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2004HummerH1AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2003ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2003ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2003ChevroletSilverado 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2003ChevroletSilverado 2500 HDAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2003ChevroletSilverado 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2003GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2003GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2003GMCSierra 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2003GMCSierra 2500 HDAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2003GMCSierra 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2003HummerH1AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002ChevroletAvalanche 2500AutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
2002ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002ChevroletSilverado 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002ChevroletSilverado 2500 HDAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002ChevroletSilverado 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002ChevroletSuburban 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002GMCSierra 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002GMCSierra 2500 HDAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002GMCSierra 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002GMCYukonAutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
2002GMCYukon XL 1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002GMCYukon XL 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2002HummerH1AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001ChevroletSilverado 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001ChevroletSilverado 2500 HDAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001ChevroletSilverado 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001ChevroletSuburban 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001GMCSierra 1500C3AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001GMCSierra 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001GMCSierra 2500 HDAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001GMCSierra 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001GMCYukonAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001GMCYukon XL 1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2001GMCYukon XL 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000ChevroletC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000ChevroletC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000ChevroletK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000ChevroletK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000ChevroletSilverado 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000ChevroletSuburban 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000GMCC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000GMCC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000GMCK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000GMCK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000GMCSierra 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
2000GMCYukon XL 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletP30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletSilverado 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999ChevroletTahoeAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCP3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCSierra 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1999GMCYukonAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletP30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998ChevroletTahoeAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCP3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1998GMCYukonAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletP30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997ChevroletTahoeAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCP3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1997GMCYukonAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletExpress 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletExpress 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletG30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletP30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996ChevroletTahoeAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCG3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCP3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCSavana 1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCSavana 2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCSavana 3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1996GMCYukonAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletG20AutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
1995ChevroletG30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletP30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995ChevroletTahoeAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCG2500AutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
1995GMCG3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCP3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1995GMCYukonAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletBlazerAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletG20AutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
1994ChevroletG30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994ChevroletP30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCG2500AutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
1994GMCG3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCP3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1994GMCYukonAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993ChevroletC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993ChevroletC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993ChevroletC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993ChevroletC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993ChevroletC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993ChevroletG20AutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
1993ChevroletG30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993ChevroletK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993ChevroletK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993ChevroletK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993ChevroletK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993ChevroletK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993ChevroletP30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCG2500AutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
1993GMCG3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCP3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1993GMCYukonAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992ChevroletC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992ChevroletC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992ChevroletC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992ChevroletC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992ChevroletC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992ChevroletG20AutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
1992ChevroletG30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992ChevroletK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992ChevroletK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992ChevroletK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992ChevroletK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992ChevroletK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992ChevroletP30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCC1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCC2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCG2500AutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
1992GMCG3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCK1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCK2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCP3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1992GMCYukonAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletBlazerAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletG20AutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
1991ChevroletG30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletP30AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletR1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletR2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletR3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletV1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletV2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991ChevroletV3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCC1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCC2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCC3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCG2500AutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
1991GMCG3500AutomaticN/AOver 15,000 (lb) GVW; without Boot; with GMC 4L80-E Transmission
1991GMCJimmyAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCK1500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCK2500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCK3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCP3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCR1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCR2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCR3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCV1500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCV2500 SuburbanAutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.
1991GMCV3500AutomaticN/AAutomatic Transmission Extension Housing Seal fits vehicles over 15,000 lb GVW without Boot.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

211112123624235725245748300862714586550328675731

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.