ATP Parts 111101 Differential Cover

Differential Cover for GM 8.50" and 8.625" Ring Gear

Restore differential sealing and lubricant retention with ATP Parts differential cover 111101. This OE-style replacement is built for GM applications using an 8.50" or 8.625" ring gear and includes a replacement gasket plus an internal magnet for added service support.

Fits a wide range of Chevrolet, GMC, Buick, Cadillac, Oldsmobile, and Pontiac rear differential applications, including Chevrolet S10, GMC Jimmy, and GMC Safari models across multiple years.

Key Features

• Direct replacement differential cover for select GM driveline applications
• Fits vehicles with an 8.50" or 8.625" ring gear
• Includes replacement gasket
• Includes internal magnet
• Designed to match original fit and function
• Part number 111101 for easy identification

Detailed Description

ATP Parts 111101 is a replacement differential cover kit designed to seal the rear axle housing and keep gear lubricant contained around the ring and pinion gears, bearings, and bushings. When the original cover is damaged by road debris, corrosion, or overtightened bolts or drain plug service, leaks can develop and the differential can lose critical lubrication. This cover is built for direct-fit service on many GM trucks, SUVs, and passenger vehicles, including Chevrolet Blazer, GMC Sonoma, and GMC Yukon applications.

This part cross-references 697700 and 26067595 for the same application.

Common Problems This Part Can Address

• Gear oil leaks from a damaged or corroded differential cover
• Sealing issues after drain plug or bolt over tightening
• Contamination concerns from a compromised rear axle housing cover
• Loss of lubricant that can lead to ring and pinion wear
• Service replacement for worn or damaged OE-style covers

Installation Notes and Tips

Confirm your axle uses an 8.50" or 8.625" ring gear and verify whether the original cover has a drain plug before ordering. Clean the housing flange thoroughly before installation and inspect the sealing surface for damage. Use the included gasket during assembly and follow factory torque specifications to help prevent leaks. Fitment includes Chevrolet S10, GMC Jimmy, GMC Safari, and other listed GM models.

Quality Assurance

ATP Parts designs this differential cover kit to fit and function like the original part for long service life and durability. Part number 111101 is intended as a direct replacement for the listed GM applications.