Click to zoom in
SKU: YCGGM8.5 / UPC: 883584230205
Yukon Gear YCGGM8.5 8.2in & 8.5in Rear Cover Gasket
Engineered by Yukon Gear & Axle, the YCGGM8.5 is a precision rear cover gasket designed for GM 8.2-inch and 8.5-inch 10-bolt differentials. It fits a wide range of Chevrolet, GMC, Buick, and Cadillac vehicles from 1980 to 2017, including popular models like Silverado, Tahoe, Suburban, and Escalade. This gasket provides a reliable seal to prevent gear oil leaks, ensuring smooth operation and protection for differential components during everyday driving or performance upgrades.
Key Features
- Exact Fit Design – Matches OEM specifications for 8.2in and 8.5in GM 10-bolt carriers with 10-bolt cover pattern.
- Premium Material – Composite construction resists heat, oil, and pressure for long-term durability.
- Leak Prevention – Forms a tight seal to keep gear oil contained and maintain proper lubrication.
- Easy Installation – Direct replacement drops in place with no special tools or modifications required.
- Versatile Compatibility – Works on rear axles across trucks, SUVs, and cars from multiple GM brands.
- Quality Construction – Built to Yukon Gear standards for consistent performance in all conditions.
Specifications
| Detail | Value |
|---|---|
| Brand | Yukon Gear & Axle |
| Type | Differential Rear Cover Gasket |
| Compatibility | GM 8.2in / 8.5in 10-bolt rear differentials |
| MPN | YCGGM8.5 |
| Axle Size | 8.2in & 8.5in (8 5/8in bolt circle) |
| Country of Origin | USA |
| Warranty | 1 Year |
| Weight | 0.1 lbs |
| Shipping Dimensions | 10 x 8 x 0.5 inches |
Whats Included
- 1 x 8.2in / 8.5in Rear Cover Gasket (YCGGM8.5)
Product Notes
- Confirm differential size before purchase (8.2in or 8.5in 10-bolt only)
- Recommended during differential cover removal or rebuild
- Clean surfaces thoroughly for best seal
This Part Fits
| Year Range | Make | Model | Notes |
|---|---|---|---|
| 1999-2017 | Chevrolet | Silverado 1500 | LS LT LTZ WT Hybrid Base |
| 1995-2017 | Chevrolet | Tahoe | LS LT LTZ Z71 PPV Premier |
| 2000-2017 | Chevrolet | Suburban 1500 | LS LT LTZ Base |
| 2007-2013 | Chevrolet | Avalanche | LS LT LTZ Black Diamond |
| 1999-2014 | Cadillac | Escalade | Base Luxury Platinum Premium Hybrid |
| 2003-2014 | Cadillac | Escalade ESV | Base Luxury Platinum Premium |
| 1980-1989 | Buick | Electra | Estate Wagon Limited Park Avenue T-Type |
| 1980-1987 | Buick | Regal | Base Limited Sport T-Type GNX Grand National |
| 1994-2005 | Chevrolet | Blazer | Base LS LT Silverado ZR2 Trailblazer Xtreme |
| 1980-1986 | Chevrolet | C10 / K10 | Scottsdale Silverado Custom Cheyenne |
| 1988-1999 | Chevrolet | C1500 / K1500 | Silverado Cheyenne Scottsdale LS Base WT |
| 1996-2014 | Chevrolet | Express 1500 | Base LS LT |
| 2004-2012 | Chevrolet | Colorado | LS LT WT Z71 Sport Base |
| 1980-1986 | Chevrolet | K5 Blazer | Silverado Custom Scottsdale Cheyenne |
| 1994-2004 | Chevrolet | S10 / S10 Blazer | Base LS SS ZR2 Xtreme ZR5 |
| 1980-1996 | Chevrolet | Caprice | Classic Base LS Brougham LTZ Estate |
Why Choose Yukon Gear?
- Full line of differential small parts for complete repairs
- Manufactured to exact tolerances for reliable sealing
- Supports performance builds and maintenance needs
- Backed by decades of gear expertise
Frequently Asked Questions
- Q: Does this gasket fit both 8.2in and 8.5in GM differentials?
- A: Yes, it is designed for both 8.2-inch and 8.5-inch (8 5/8-inch) 10-bolt rear covers.
- Q: Is installation straightforward?
- A: Yes, it is a direct OEM replacement that installs in minutes with basic tools.
- Q: What if my vehicle has a different bolt pattern?
- A: Verify your differential uses the 10-bolt cover pattern common to listed GM models.
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Protective envelope for fast secure delivery
Diff Cover Gaskets
Differential cover gaskets seal the interface between the diff cover and housing, keeping gear oil contained and preventing leaks that can lead to premature bearing wear or total axle failure. Replacing a worn or damaged gasket during a fluid change is straightforward preventive maintenance for any rear-wheel or four-wheel drive vehicle.Popular Diff Cover Gasket TypesOptions include reusable silicone gaskets for Dana 44 and Dana 60 axles, OEM-replacement rubber gaskets for GM 10-bolt and 12-bolt differentials, and RTV-sealant-compatible paper gaskets for Ford 8.8 and 9-inch applications. Billet diff cover upgrades often include a matching formed gasket or integrated seal surface.How do I know when my diff cover gasket needs replacement?Signs include gear oil seeping around the cover perimeter, a low diff fluid level with no other visible leak source, or contamination around the cover bolts. Inspect the gasket surface any time you drop the cover for a fluid change or ring-and-pinion ...
View Diff Cover Gaskets Products
Differentials & Components
Differentials and components at Black Ops Auto Works include diff braces, diff covers, rebuild and overhaul kits, differential bushings and mounts, limited-slip differentials, yokes, and final drive gears built for street, towing, off-road, and racing applications. Black Ops Auto Works carries 1,332 drivetrain SKUs from Yukon Gear and Axle, ARB, OS Giken, SuperPro, and Per4mance Development, spanning Hellcat and Trackhawk platforms, trucks, Jeep Wrangler, and sport compacts. What This Collection Covers This collection combines fifteen related differential and drivetrain categories, including diff braces, diff covers and gaskets, rebuild and overhaul kits, install kits, seal kits, bushings, mounts, housings, dropouts, spider gears, yokes, complete differentials, and final drive gears. Product Types in This Collection Shoppers will find billet differential braces for high-horsepower RWD platforms, nodular iron and aluminum diff covers, master overhaul kits, differential-to-cradle ...
View Differentials & Components Products
Drivetrain
Drivetrain parts for high-horsepower Mopar, truck, Jeep, and import platforms are stocked at Black Ops Auto Works. Shop differentials, axles, driveshafts, clutch kits, flywheels, flexplates, shifters, transmission components, ring and pinion gears, differential braces, and driveline hardware for Hellcat, Trackhawk, TRX, HEMI, LS, LT, Coyote, and turbocharged import platforms. Every drivetrain part is filterable by vehicle platform, drivetrain layout, transmission type, and power level so the correct part ships the first time. Black Ops Auto Works carries 4,765 drivetrain SKUs across differentials, axles, clutches, and transmission hardware. What This Category Covers The drivetrain transfers power from the engine to the wheels and includes the transmission, clutch, driveshafts, axles, differentials, ring and pinion gears, wheel hubs, wheel bearings, U-joints, shifters, mounts, and bushings. Upgrading these components improves power delivery, durability, and reliability under incr...
View Drivetrain Products
Engine
Engine parts and engine bay upgrades for Dodge, Jeep, RAM, Chrysler, Chevrolet, Ford, Toyota, Nissan, Subaru, and Honda vehicles are stocked at Black Ops Auto Works. Shop oil catch cans, supercharger pulleys, thermostats, radiators, cooling parts, throttle bodies, intake manifolds, headers, ignition coils, spark plugs, sensors, gaskets, fuel pumps, valve covers, engine covers, billet cap covers, and full engine bay dress-up parts for HEMI, Hellcat, Trackhawk, Redeye, Demon, Scat Pack, RAM TRX, LS, LT, Coyote, EcoBoost, K-Series, and 2JZ builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 14,298 engine SKUs across performance, cooling, oil control, ignition, and appearance categories. What This Category Covers The Engine collection combines OEM-replacement engine service parts with performance aftermarket upgrades for supercharged, turbocharged, and naturally aspirated builds...
View Engine Products
Yukon Gear & Axle
Yukon Gear and Axle drivetrain parts are stocked at Black Ops Auto Works for GM, Ford, Chrysler, Ram, and Jeep platforms. Shop ring and pinion sets, positraction and locker units, axle overhaul kits, differential covers, driveshafts, and manual transmission rebuild components for Dana 60/61, GM 8.2/8.5/8.6/9.5, Ford 8.8/9/10.25/10.5, and Chrysler 8.25/9.25 inch axles. Yukon parts are proven in extreme-duty use, including King of the Hammers and Moab rock crawling events, and every part here is filterable by axle size, gear ratio, and spline count. Black Ops Auto Works carries 1122 Yukon Gear and Axle SKUs across ring and pinion, differential, and axle rebuild categories. What This Brand Covers Yukon Gear and Axle builds ring and pinion sets, differential carriers, positraction and locking differentials, axle shafts, bearing and seal kits, driveshafts, and manual transmission rebuild components for domestic trucks, SUVs, and Jeeps. The brand is best known for supporting extreme-d...
View Yukon Gear & Axle Products