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SKF SDK321-CMK Axle Differential Bearing and Seal Kit - RearOE Quality 60-Day Returns
Part #: 8188

SKF SDK321-CMK Axle Differential Bearing and Seal Kit - Rear

184 vehicles fit this part
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Not what you need? See all Axle Differential Bearing and Seal Kit options

Axle Differential Bearing and Seal Kit for Rear Service

SKF SDK321-CMK is an axle differential bearing and seal kit built for rear differential service on a wide range of GM trucks and SUVs. It is designed around the bearing and seal dimensions needed for a proper differential repair, with components selected to meet or exceed original equipment specifications.

Key Features

  • SKF axle differential bearing and seal kit for rear differential service
  • Inside diameter: 11.0000
  • Width: 2.500
  • Bearing type: DIFF2TP
  • Premium bearings include matching cones and cups
  • Seals use SKF Bore-Tite coating for improved sealing performance
  • Built for complete differential repair applications

Product Details

The SKF SDK321-CMK is engineered for rear axle differential service where bearing wear, seal leakage, or driveline noise require a full repair. SKF supplies bearings, seals, and related sealing components in kits like this to help restore differential function with parts that follow OE-level dimensional and performance standards. This part number, SDK321-CMK, is commonly searched for rear differential repair on vehicles such as the Chevrolet Silverado 1500 and GMC Sierra 1500, as well as Cadillac Escalade applications.

This part cross-references 1458LM603049 and JD8944 for the same application.

Vehicle Fitment

  • Fits 1999-2000 Cadillac Escalade, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 2002-2006 Cadillac Escalade, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 2003-2006 Cadillac Escalade ESV, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 2002-2006 Cadillac Escalade EXT, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 1999-2006 Chevrolet Express 1500, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 2003-2006 Chevrolet SSR, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 2002-2006 Chevrolet Trailblazer, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 2002-2006 Chevrolet Trailblazer EXT, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 1999-2005 Chevrolet Blazer, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 1999-2004 Chevrolet S10, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 2002 Chevrolet Avalanche 1500, Rear, Master Kit; 8.50" & 8.625" Ring Gears
  • Fits 1999-2002 Chevrolet Silverado 1500, Rear, Master Kit; 8.50" & 8.625" Ring Gears
  • Fits 2001-2002 Chevrolet Silverado 1500 HD, Rear, Master Kit; 8.50" & 8.625" Ring Gears
  • Fits 2000-2002 Chevrolet Suburban 1500, Rear, Master Kit; 8.50" & 8.625" Ring Gears
  • Fits 2000-2002 Chevrolet Tahoe, Rear, Master Kit; 8.50" & 8.625" Ring Gears
  • Fits 2002 Chevrolet Trailblazer, Rear, Master Kit; 8.50" & 8.625" Ring Gears
  • Fits 1999-2002 GMC Savana 1500, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 1999-2002 GMC Sierra 1500, Rear, Master Kit; 8.50" & 8.625" Ring Gears
  • Fits 2001-2002 GMC Sierra 1500 HD, Rear, Master Kit; 8.50" & 8.625" Ring Gears
  • Fits 2001-2002 GMC Yukon, Rear, Master Kit; 8.50" & 8.625" Ring Gears
  • Fits 2001-2002 GMC Yukon XL 1500, Rear, Master Kit; 8.50" & 8.625" Ring Gears
  • Fits 2002-2006 GMC Envoy, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 2002-2006 GMC Envoy XL, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 2004-2005 GMC Envoy XUV, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 1999-2005 GMC Jimmy, Rear, Master Kit; 8.50'' Ring Gear
  • Fits 1999-2004 GMC Sonoma, Rear, Master Kit; 8.50'' Ring Gear

Common Repair Uses

  • Rear differential bearing noise during acceleration or deceleration
  • Gear oil leakage from worn axle or differential seals
  • Excessive play or roughness in differential bearing surfaces
  • Service replacement for worn rear axle differential components
  • Restoration work on GM rear differential assemblies

Installation Notes

Confirm ring gear size and axle application before ordering, since this kit is listed for both 8.50-inch and 8.625-inch ring gear applications on select vehicles. Inspect the housing, races, and related wear surfaces during service, and replace damaged components as needed to complete the repair correctly. Professional differential setup procedures are recommended after bearing replacement.

Quality Assurance

SKF manufactures these differential service components to high quality standards, with bearings, seals, and gaskets selected for OE-level fit and performance. The seals use SKF Bore-Tite coating to improve sealing performance, and the kit is built to support long service life in rear driveline repair applications.

This part fits 184 vehicles. Search below:

YearMakeModelPositionNotes
2006CadillacEscaladeRearMaster Kit; 8.50'' Ring Gear:
2006CadillacEscaladeRearMaster Kit; 8.50" Ring Gear:
2006CadillacEscalade ESVRearMaster Kit; 8.50'' Ring Gear:
2006CadillacEscalade ESVRearMaster Kit; 8.50" Ring Gear:
2006CadillacEscalade EXTRearMaster Kit; 8.50'' Ring Gear:
2006CadillacEscalade EXTRearMaster Kit; 8.50" Ring Gear:
2006ChevroletExpress 1500RearMaster Kit; 8.50'' Ring Gear:
2006ChevroletExpress 1500RearMaster Kit; 8.50" Ring Gear:
2006ChevroletSSRRearMaster Kit; 8.50'' Ring Gear:
2006ChevroletSSRRearMaster Kit; 8.50" Ring Gear:
2006ChevroletTrailblazerRearMaster Kit; 8.50'' Ring Gear:
2006ChevroletTrailblazerRearMaster Kit; 8.50" Ring Gear:
2006ChevroletTrailblazer EXTRearMaster Kit; 8.50'' Ring Gear:
2006ChevroletTrailblazer EXTRearMaster Kit; 8.50" Ring Gear:
2006GMCEnvoyRearMaster Kit; 8.50'' Ring Gear:
2006GMCEnvoyRearMaster Kit; 8.50" Ring Gear:
2006GMCEnvoy XLRearMaster Kit; 8.50'' Ring Gear:
2006GMCEnvoy XLRearMaster Kit; 8.50" Ring Gear:
2005CadillacEscaladeRearMaster Kit; 8.50'' Ring Gear:
2005CadillacEscaladeRearMaster Kit; 8.50" Ring Gear:
2005CadillacEscalade ESVRearMaster Kit; 8.50'' Ring Gear:
2005CadillacEscalade ESVRearMaster Kit; 8.50" Ring Gear:
2005CadillacEscalade EXTRearMaster Kit; 8.50'' Ring Gear:
2005CadillacEscalade EXTRearMaster Kit; 8.50" Ring Gear:
2005ChevroletBlazerRearMaster Kit; 8.50'' Ring Gear:
2005ChevroletBlazerRearMaster Kit; 8.50" Ring Gear:
2005ChevroletExpress 1500RearMaster Kit; 8.50'' Ring Gear:
2005ChevroletExpress 1500RearMaster Kit; 8.50" Ring Gear:
2005ChevroletSSRRearMaster Kit; 8.50'' Ring Gear:
2005ChevroletSSRRearMaster Kit; 8.50" Ring Gear:
2005ChevroletTrailblazerRearMaster Kit; 8.50'' Ring Gear:
2005ChevroletTrailblazerRearMaster Kit; 8.50" Ring Gear:
2005ChevroletTrailblazer EXTRearMaster Kit; 8.50'' Ring Gear:
2005ChevroletTrailblazer EXTRearMaster Kit; 8.50" Ring Gear:
2005GMCEnvoyRearMaster Kit; 8.50'' Ring Gear:
2005GMCEnvoyRearMaster Kit; 8.50" Ring Gear:
2005GMCEnvoy XLRearMaster Kit; 8.50'' Ring Gear:
2005GMCEnvoy XLRearMaster Kit; 8.50" Ring Gear:
2005GMCEnvoy XUVRearMaster Kit; 8.50'' Ring Gear:
2005GMCEnvoy XUVRearMaster Kit; 8.50" Ring Gear:
2005GMCJimmyRearMaster Kit; 8.50'' Ring Gear:
2005GMCJimmyRearMaster Kit; 8.50" Ring Gear:
2004CadillacEscaladeRearMaster Kit; 8.50'' Ring Gear:
2004CadillacEscaladeRearMaster Kit; 8.50" Ring Gear:
2004CadillacEscalade ESVRearMaster Kit; 8.50'' Ring Gear:
2004CadillacEscalade ESVRearMaster Kit; 8.50" Ring Gear:
2004CadillacEscalade EXTRearMaster Kit; 8.50'' Ring Gear:
2004CadillacEscalade EXTRearMaster Kit; 8.50" Ring Gear:
2004ChevroletBlazerRearMaster Kit; 8.50'' Ring Gear:
2004ChevroletBlazerRearMaster Kit; 8.50" Ring Gear:
2004ChevroletExpress 1500RearMaster Kit; 8.50'' Ring Gear:
2004ChevroletExpress 1500RearMaster Kit; 8.50" Ring Gear:
2004ChevroletS10RearMaster Kit; 8.50'' Ring Gear:
2004ChevroletS10RearMaster Kit; 8.50" Ring Gear:
2004ChevroletSSRRearMaster Kit; 8.50'' Ring Gear:
2004ChevroletSSRRearMaster Kit; 8.50" Ring Gear:
2004ChevroletTrailblazerRearMaster Kit; 8.50'' Ring Gear:
2004ChevroletTrailblazerRearMaster Kit; 8.50" Ring Gear:
2004ChevroletTrailblazer EXTRearMaster Kit; 8.50'' Ring Gear:
2004ChevroletTrailblazer EXTRearMaster Kit; 8.50" Ring Gear:
2004GMCEnvoyRearMaster Kit; 8.50'' Ring Gear:
2004GMCEnvoyRearMaster Kit; 8.50" Ring Gear:
2004GMCEnvoy XLRearMaster Kit; 8.50'' Ring Gear:
2004GMCEnvoy XLRearMaster Kit; 8.50" Ring Gear:
2004GMCEnvoy XUVRearMaster Kit; 8.50'' Ring Gear:
2004GMCEnvoy XUVRearMaster Kit; 8.50" Ring Gear:
2004GMCJimmyRearMaster Kit; 8.50'' Ring Gear:
2004GMCJimmyRearMaster Kit; 8.50" Ring Gear:
2004GMCSonomaRearMaster Kit; 8.50'' Ring Gear:
2004GMCSonomaRearMaster Kit; 8.50" Ring Gear:
2003CadillacEscaladeRearMaster Kit; 8.50'' Ring Gear:
2003CadillacEscaladeRearMaster Kit; 8.50" Ring Gear:
2003CadillacEscalade ESVRearMaster Kit; 8.50'' Ring Gear:
2003CadillacEscalade ESVRearMaster Kit; 8.50" Ring Gear:
2003CadillacEscalade EXTRearMaster Kit; 8.50'' Ring Gear:
2003CadillacEscalade EXTRearMaster Kit; 8.50" Ring Gear:
2003ChevroletBlazerRearMaster Kit; 8.50'' Ring Gear:
2003ChevroletBlazerRearMaster Kit; 8.50" Ring Gear:
2003ChevroletExpress 1500RearMaster Kit; 8.50'' Ring Gear:
2003ChevroletExpress 1500RearMaster Kit; 8.50" Ring Gear:
2003ChevroletS10RearMaster Kit; 8.50'' Ring Gear:
2003ChevroletS10RearMaster Kit; 8.50" Ring Gear:
2003ChevroletSSRRearMaster Kit; 8.50'' Ring Gear:
2003ChevroletSSRRearMaster Kit; 8.50" Ring Gear:
2003ChevroletTrailblazerRearMaster Kit; 8.50'' Ring Gear:
2003ChevroletTrailblazerRearMaster Kit; 8.50" Ring Gear:
2003ChevroletTrailblazer EXTRearMaster Kit; 8.50'' Ring Gear:
2003ChevroletTrailblazer EXTRearMaster Kit; 8.50" Ring Gear:
2003GMCEnvoyRearMaster Kit; 8.50'' Ring Gear:
2003GMCEnvoyRearMaster Kit; 8.50" Ring Gear:
2003GMCEnvoy XLRearMaster Kit; 8.50'' Ring Gear:
2003GMCEnvoy XLRearMaster Kit; 8.50" Ring Gear:
2003GMCJimmyRearMaster Kit; 8.50'' Ring Gear:
2003GMCJimmyRearMaster Kit; 8.50" Ring Gear:
2003GMCSonomaRearMaster Kit; 8.50'' Ring Gear:
2003GMCSonomaRearMaster Kit; 8.50" Ring Gear:
2002CadillacEscaladeRearMaster Kit; 8.50'' Ring Gear:
2002CadillacEscaladeRearMaster Kit; 8.50" Ring Gear:
2002CadillacEscalade EXTRearMaster Kit; 8.50'' Ring Gear:
2002CadillacEscalade EXTRearMaster Kit; 8.50" Ring Gear:
2002ChevroletAvalanche 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
2002ChevroletBlazerRearMaster Kit; 8.50'' Ring Gear:
2002ChevroletBlazerRearMaster Kit; 8.50" Ring Gear:
2002ChevroletExpress 1500RearMaster Kit; 8.50'' Ring Gear:
2002ChevroletExpress 1500RearMaster Kit; 8.50" Ring Gear:
2002ChevroletS10RearMaster Kit; 8.50'' Ring Gear:
2002ChevroletS10RearMaster Kit; 8.50" Ring Gear:
2002ChevroletSilverado 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
2002ChevroletSilverado 1500 HDRearMaster Kit; 8.50" & 8.625" Ring Gears
2002ChevroletSuburban 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
2002ChevroletTahoeRearMaster Kit; 8.50" & 8.625" Ring Gears
2002ChevroletTrailblazerRearMaster Kit; 8.50'' Ring Gear:
2002ChevroletTrailblazerRearMaster Kit; 8.50" & 8.625" Ring Gears
2002ChevroletTrailblazerRearMaster Kit; 8.50" Ring Gear:
2002ChevroletTrailblazer EXTRearMaster Kit; 8.50'' Ring Gear:
2002ChevroletTrailblazer EXTRearMaster Kit; 8.50" Ring Gear:
2002GMCEnvoyRearMaster Kit; 8.50'' Ring Gear:
2002GMCEnvoyRearMaster Kit; 8.50" Ring Gear:
2002GMCEnvoy XLRearMaster Kit; 8.50'' Ring Gear:
2002GMCEnvoy XLRearMaster Kit; 8.50" Ring Gear:
2002GMCJimmyRearMaster Kit; 8.50'' Ring Gear:
2002GMCJimmyRearMaster Kit; 8.50" Ring Gear:
2002GMCSavana 1500RearMaster Kit; 8.50'' Ring Gear:
2002GMCSavana 1500RearMaster Kit; 8.50" Ring Gear:
2002GMCSierra 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
2002GMCSierra 1500 HDRearMaster Kit; 8.50" & 8.625" Ring Gears
2002GMCSonomaRearMaster Kit; 8.50'' Ring Gear:
2002GMCSonomaRearMaster Kit; 8.50" Ring Gear:
2002GMCYukonRearMaster Kit; 8.50" & 8.625" Ring Gears
2002GMCYukon XL 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
2001ChevroletBlazerRearMaster Kit; 8.50'' Ring Gear:
2001ChevroletBlazerRearMaster Kit; 8.50" Ring Gear:
2001ChevroletExpress 1500RearMaster Kit; 8.50'' Ring Gear:
2001ChevroletExpress 1500RearMaster Kit; 8.50" Ring Gear:
2001ChevroletS10RearMaster Kit; 8.50'' Ring Gear:
2001ChevroletS10RearMaster Kit; 8.50" Ring Gear:
2001ChevroletSilverado 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
2001ChevroletSilverado 1500 HDRearMaster Kit; 8.50" & 8.625" Ring Gears
2001ChevroletSuburban 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
2001ChevroletTahoeRearMaster Kit; 8.50" & 8.625" Ring Gears
2001GMCJimmyRearMaster Kit; 8.50'' Ring Gear:
2001GMCJimmyRearMaster Kit; 8.50" Ring Gear:
2001GMCSavana 1500RearMaster Kit; 8.50'' Ring Gear:
2001GMCSavana 1500RearMaster Kit; 8.50" Ring Gear:
2001GMCSierra 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
2001GMCSierra 1500 HDRearMaster Kit; 8.50" & 8.625" Ring Gears
2001GMCSonomaRearMaster Kit; 8.50'' Ring Gear:
2001GMCSonomaRearMaster Kit; 8.50" Ring Gear:
2001GMCYukonRearMaster Kit; 8.50" & 8.625" Ring Gears
2001GMCYukon XL 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
2000CadillacEscaladeRearMaster Kit; 8.50'' Ring Gear:
2000CadillacEscaladeRearMaster Kit; 8.50" Ring Gear:
2000ChevroletBlazerRearMaster Kit; 8.50'' Ring Gear:
2000ChevroletBlazerRearMaster Kit; 8.50" Ring Gear:
2000ChevroletExpress 1500RearMaster Kit; 8.50'' Ring Gear:
2000ChevroletExpress 1500RearMaster Kit; 8.50" Ring Gear:
2000ChevroletS10RearMaster Kit; 8.50'' Ring Gear:
2000ChevroletS10RearMaster Kit; 8.50" Ring Gear:
2000ChevroletSilverado 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
2000ChevroletSuburban 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
2000ChevroletTahoeRearMaster Kit; 8.50" & 8.625" Ring Gears
2000GMCJimmyRearMaster Kit; 8.50'' Ring Gear:
2000GMCJimmyRearMaster Kit; 8.50" Ring Gear:
2000GMCSavana 1500RearMaster Kit; 8.50'' Ring Gear:
2000GMCSavana 1500RearMaster Kit; 8.50" Ring Gear:
2000GMCSierra 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
2000GMCSonomaRearMaster Kit; 8.50'' Ring Gear:
2000GMCSonomaRearMaster Kit; 8.50" Ring Gear:
1999CadillacEscaladeRearMaster Kit; 8.50'' Ring Gear:
1999CadillacEscaladeRearMaster Kit; 8.50" Ring Gear:
1999ChevroletBlazerRearMaster Kit; 8.50'' Ring Gear:
1999ChevroletBlazerRearMaster Kit; 8.50" Ring Gear:
1999ChevroletExpress 1500RearMaster Kit; 8.50'' Ring Gear:
1999ChevroletExpress 1500RearMaster Kit; 8.50" Ring Gear:
1999ChevroletS10RearMaster Kit; 8.50'' Ring Gear:
1999ChevroletS10RearMaster Kit; 8.50" Ring Gear:
1999ChevroletSilverado 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
1999GMCJimmyRearMaster Kit; 8.50'' Ring Gear:
1999GMCJimmyRearMaster Kit; 8.50" Ring Gear:
1999GMCSavana 1500RearMaster Kit; 8.50'' Ring Gear:
1999GMCSavana 1500RearMaster Kit; 8.50" Ring Gear:
1999GMCSierra 1500RearMaster Kit; 8.50" & 8.625" Ring Gears
1999GMCSonomaRearMaster Kit; 8.50'' Ring Gear:
1999GMCSonomaRearMaster Kit; 8.50" Ring Gear:

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

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