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National 710491 Drive Axle Shaft Seal - Front Inner
Reliable Drive Axle Shaft Seal for Chevrolet and GMC Vehicles
The National 710491 drive axle shaft seal is engineered to provide effective sealing for driveline components in select Chevrolet, GMC, Isuzu, and Oldsmobile models. Designed with durable polyacrylate material and a bi-directional lip design, this oil seal helps maintain optimal axle performance and prevent leaks.
- Constructed from high-quality polyacrylate for durability and resistance to wear
- Bi-directional helix lip design ensures effective sealing under varying rotational directions
- Inside diameter options of 1.575 inch (40.000 mm) and shaft diameter compatibility of 1.560 inch (39.600 mm)
- Outside diameter measures 2.724 inch (69.200 mm) with a housing bore of 2.717 inch (69.000 mm)
- Thickness and width dimensions of 0.531 inch (13.500 mm) and 0.610 inch (15.500 mm) respectively for precise fitment
This National 710491 drive axle shaft seal is part of the 710400 series, designed specifically for driveline and axle sealing applications. Its polyacrylate construction offers resistance to heat and contaminants, while the bi-directional lip design provides reliable sealing performance in both rotational directions. The seal’s precise dimensions ensure compatibility with shafts measuring approximately 1.56 inches and housings around 2.72 inches in diameter, making it suitable for a range of vehicles.
Compatible Vehicles and Applications
This drive axle shaft seal is compatible with various Chevrolet, GMC, Isuzu, and Oldsmobile models, including Chevrolet Astro, Blazer, S10, Trailblazer, GMC Envoy series, Safari, Savana 1500/2500, and Oldsmobile Bravada. It is designed to maintain axle integrity by preventing oil leaks and contamination in these driveline systems.
- Prevents oil leaks from the drive axle shaft
- Protects axle bearings and components from dirt and debris
- Maintains proper lubrication within the axle assembly
- Reduces risk of driveline damage due to seal failure
- Helps avoid costly repairs related to axle shaft wear
Installation Notes and Tips
When installing the National 710491 drive axle shaft seal, ensure the shaft and housing bore are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without damaging the sealing lip. Verify the seal orientation matches the bi-directional lip design for optimal performance. Lubricate the seal lip lightly with compatible axle oil before installation to reduce initial wear.
Quality Assurance and Warranty
National manufactures the 710491 seal to meet industry standards for driveline sealing components. The polyacrylate material and design features provide reliable service life under normal operating conditions. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in product quality.
| Brand | National |
|---|---|
| Part Number | 710491 |
| Helix Type | Bi-Directional Lip Design |
| Housing Bore (Inch) | 2.717 |
| Housing Bore (MM) | 69.000 |
| Inside Diameter | 1.575 |
| Inside Diameter | 40.000 |
| Material | Polyacrylate |
| Outside Diameter | 2.724 |
| Outside Diameter | 69.200 |
| Outside Diameter (Inch) | 2.724 |
| Outside Diameter (mm) | 69.200 |
| Part Description | Oil Seal |
| Series | 710400 |
| Shaft (Inch) | 1.560 |
| Shaft (MM) | 39.600 |
| Thickness | 0.531 |
| Thickness | 13.500 |
| Type | # |
| Unit of Dimension | Inch |
| Width (Inch) | 0.610 |
| Width (mm) | 15.500 |
This part fits 123 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2014 | Chevrolet | Express 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2014 | GMC | Savana 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2013 | Chevrolet | Express 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2013 | GMC | Savana 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2012 | Chevrolet | Express 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2012 | GMC | Savana 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2011 | Chevrolet | Express 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2011 | GMC | Savana 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2010 | Chevrolet | Express 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2010 | GMC | Savana 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2009 | Chevrolet | Express 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2009 | Chevrolet | Trailblazer | 4WD | Front Inner | |
| 2009 | GMC | Envoy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2009 | GMC | Savana 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2008 | Chevrolet | Express 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2008 | Chevrolet | Trailblazer | 4WD | Front Inner | |
| 2008 | GMC | Envoy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2008 | GMC | Savana 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2007 | Chevrolet | Express 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2007 | Chevrolet | Trailblazer | 4WD | Front Inner | |
| 2007 | GMC | Envoy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2007 | GMC | Savana 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2006 | Chevrolet | Express 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2006 | Chevrolet | Trailblazer | 4WD | Front Inner | |
| 2006 | GMC | Envoy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2006 | GMC | Envoy XL | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2006 | GMC | Savana 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Chevrolet | Astro | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Chevrolet | Blazer | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Chevrolet | Express 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Chevrolet | Express 2500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | Chevrolet | Trailblazer | 4WD | Front Inner | |
| 2005 | GMC | Envoy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | GMC | Envoy XL | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | GMC | Envoy XUV | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | GMC | Jimmy | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. | |
| 2005 | GMC | Safari | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | GMC | Savana 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2005 | GMC | Savana 2500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | Chevrolet | Astro | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | Chevrolet | Blazer | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | Chevrolet | Express 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | Chevrolet | Express 2500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | Chevrolet | S10 | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. | |
| 2004 | Chevrolet | Trailblazer | 4WD | Front Inner | |
| 2004 | GMC | Envoy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Envoy XL | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Envoy XUV | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Jimmy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Safari | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Savana 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Savana 2500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2004 | GMC | Sonoma | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. | |
| 2004 | Oldsmobile | Bravada | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | Astro | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | Blazer | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | Express 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | Express 2500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | S10 | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Chevrolet | Trailblazer | 4WD | Front Inner | |
| 2003 | GMC | Envoy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Envoy XL | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Jimmy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Safari | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Savana 1500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Savana 2500 | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | GMC | Sonoma | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2003 | Oldsmobile | Bravada | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | Chevrolet | Astro | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | Chevrolet | Blazer | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | Chevrolet | S10 | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | Chevrolet | Trailblazer | 4WD | Front Inner | |
| 2002 | GMC | Envoy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | GMC | Envoy XL | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | GMC | Jimmy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | GMC | Safari | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | GMC | Sonoma | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2002 | Oldsmobile | Bravada | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2001 | Chevrolet | Astro | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2001 | Chevrolet | Blazer | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2001 | Chevrolet | Blazer | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2001 | Chevrolet | S10 | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2001 | GMC | Jimmy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2001 | GMC | Jimmy | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2001 | GMC | Safari | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2001 | GMC | Sonoma | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2001 | Oldsmobile | Bravada | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2000 | Chevrolet | Astro | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2000 | Chevrolet | Blazer | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2000 | Chevrolet | Blazer | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2000 | Chevrolet | S10 | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2000 | GMC | Jimmy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2000 | GMC | Jimmy | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2000 | GMC | Safari | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2000 | GMC | Sonoma | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2000 | Isuzu | Hombre | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 2000 | Oldsmobile | Bravada | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1999 | Chevrolet | Astro | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1999 | Chevrolet | Blazer | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1999 | Chevrolet | Blazer | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1999 | Chevrolet | S10 | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1999 | GMC | Jimmy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1999 | GMC | Jimmy | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1999 | GMC | Safari | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1999 | GMC | Sonoma | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1999 | Isuzu | Hombre | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1999 | Oldsmobile | Bravada | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1998 | Chevrolet | Astro | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1998 | Chevrolet | Blazer | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1998 | Chevrolet | S10 | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1998 | GMC | Jimmy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1998 | GMC | Safari | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1998 | GMC | Sonoma | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1998 | Isuzu | Hombre | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1998 | Oldsmobile | Bravada | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1997 | Chevrolet | Astro | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1997 | Chevrolet | Blazer | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1997 | Chevrolet | Blazer | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1997 | Chevrolet | S10 | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1997 | GMC | Jimmy | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1997 | GMC | Safari | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1997 | GMC | Sonoma | 4WD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
| 1997 | Oldsmobile | Bravada | AWD | Front Inner | For vehicles with a 7.25-inch Ring Gear and AAM Axle, featuring Independent Front Suspension. |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.