GM 8.5" 10-Bolt Fiber Front Differential Cover Gasket
GM 8.5" 10-Bolt Fiber Front Differential Cover Gasket
SKU: SKU: SP4936
Out of stock

Product Details
Features
- Fiber gasket seals the front differential cover, prevents gear oil leaks
- Direct replacement for leaking, damaged, or missing cover gaskets
- Fits GM 8.5" 10-bolt front axles on select 4x4 trucks/SUVs only
- Not for the rear 8.5"/8.6" 10-bolt — confirm front vs. rear axle ID
Description
This fiber differential cover gasket is sized and punched for GM 8.5" front-differential axle housings with a 10-bolt cover pattern. It's a direct replacement for a leaking, damaged, or missing cover gasket, providing a reliable fiber seal between the differential cover and axle housing sealing rail during cover reinstallation, fluid changes, or cover upgrades.
Fiber construction supports a consistent, leak-resistant seal and is the factory-style material for this application. This gasket is sized for the front-axle version of the GM 8.5" 10-bolt housing used on select 4x4 GM trucks — it is not the same as GM's rear 8.5" or 8.6" 10-bolt axles, which use a different gasket. Confirm your specific axle identification (front vs. rear) before ordering.
This gasket is sold individually and includes no cover, hardware, or drain plug. Confirm your axle model, cover bolt pattern, and sealing surface condition before installation.
Applications
Fits GM 8.5" front-differential axle housings with a 10-bolt cover pattern, used on select 4x4 Chevrolet/GMC trucks and SUVs (K-Series, Silverado/Sierra 4x4, Suburban/Tahoe/Yukon 4x4, and Blazer/Jimmy 4x4 applications equipped with this front axle).
Installation
Sold individually — no cover, hardware, or drain plug included. Verify axle identification (front vs. rear) before ordering, since this gasket does not fit GM's rear 8.5"/8.6" 10-bolt axles. Confirm gasket or RTV sealing requirements and fluid fill level. Check spare tire, sway bar, panhard bar, and suspension clearance where applicable.
Specs
| Style | 10-Bolt |
| Material | Fiber |
| Quantity | Sold Individually |
Engine Fitment
COMPATIBLE WITH
GM 8.5 in. 10-Bolt DIFFERENTIAL COVER APPLICATIONS
• Fits housings using 10-bolt cover pattern
• Match cover shape, sealing rail, and fill/drain configuration before installation
NOTES
• Verify axle model, bolt pattern, ring gear size, and housing shape before installation.
• Confirm gasket or RTV sealing requirements and fluid fill level.
• Check spare tire, sway bar, panhard bar, and suspension clearance where applicable.
COMMON VEHICLE APPLICATIONS
Chevrolet / GMC 4x4 truck and SUV applications equipped with a GM 8.5" front axle
Q&A
Is this for the front or rear axle?
Front. This gasket is not the same as GM's rear 8.5" or 8.6" 10-bolt axles, which use a different gasket — confirm your specific axle identification before ordering.
What vehicles use this front axle?
Select 4x4 Chevrolet/GMC trucks and SUVs, including K-Series, Silverado/Sierra 4x4, Suburban/Tahoe/Yukon 4x4, and Blazer/Jimmy 4x4 applications.
Does this come with the cover or hardware?
No — this gasket is sold individually. Cover, hardware, and drain plug are not included.
What's this gasket made of?
Fiber.
Emissions Notice
This product does not affect vehicle emissions and is not subject to emissions compliance regulations.
GM 8.5" 10-Bolt Fiber Front Differential Cover Gasket
This fiber differential cover gasket is sized and punched for GM 8.5" front-differential axle housings with a 10-bolt cover pattern. It's a direct replacement for a leaking, damaged, or missing cover gasket, providing a reliable fiber seal between the differential cover and axle housing sealing rail during cover reinstallation, fluid changes, or cover upgrades.
Fiber construction supports a consistent, leak-resistant seal and is the factory-style material for this application. This gasket is sized for the front-axle version of the GM 8.5" 10-bolt housing used on select 4x4 GM trucks — it is not the same as GM's rear 8.5" or 8.6" 10-bolt axles, which use a different gasket. Confirm your specific axle identification (front vs. rear) before ordering.
This gasket is sold individually and includes no cover, hardware, or drain plug. Confirm your axle model, cover bolt pattern, and sealing surface condition before installation.
Applications
Fits GM 8.5" front-differential axle housings with a 10-bolt cover pattern, used on select 4x4 Chevrolet/GMC trucks and SUVs (K-Series, Silverado/Sierra 4x4, Suburban/Tahoe/Yukon 4x4, and Blazer/Jimmy 4x4 applications equipped with this front axle).
Installation
Sold individually — no cover, hardware, or drain plug included. Verify axle identification (front vs. rear) before ordering, since this gasket does not fit GM's rear 8.5"/8.6" 10-bolt axles. Confirm gasket or RTV sealing requirements and fluid fill level. Check spare tire, sway bar, panhard bar, and suspension clearance where applicable.
COMPATIBLE WITH
GM 8.5 in. 10-Bolt DIFFERENTIAL COVER APPLICATIONS
• Fits housings using 10-bolt cover pattern
• Match cover shape, sealing rail, and fill/drain configuration before installation
NOTES
• Verify axle model, bolt pattern, ring gear size, and housing shape before installation.
• Confirm gasket or RTV sealing requirements and fluid fill level.
• Check spare tire, sway bar, panhard bar, and suspension clearance where applicable.
COMMON VEHICLE APPLICATIONS
Chevrolet / GMC 4x4 truck and SUV applications equipped with a GM 8.5" front axle
SPECIFICATIONS
Style: 10-Bolt
Material: Fiber
Quantity: Sold Individually