KOONDHEEND Rear Differential Cover Kit for Chevy GMC Cadillac 697-706 (8.5/8.625" 10‑bolt) with Gasket, Magnet & Hardware

KOONDHEEND 697-706 rear differential cover kit is a direct-fit steel replacement that includes a gasket, magnet, and mounting hardware for compatible Chevy, GMC and Cadillac 8.5/8.625" 10-bolt rear differentials.

When a worn or leaking differential cover needs replacement, this complete kit supplies the parts most owners need for a professional repair: a stamped alloy-steel cover, a precision gasket, a magnetic wear-particle catcher, and all mounting fasteners. It’s engineered to match the OE 697-706 profile and bolt pattern so it installs cleanly on specified Silverado, Sierra, Tahoe, Yukon, Suburban, Avalanche and Escalade models, avoiding the fitment guesswork that can add time and cost to the job.

Which vehicles and axle types will this cover fit?

This KOONDHEEND cover is made for 8.5 and 8.625-inch ring gear housings with the 10-bolt rear differential pattern. It lists broad compatibility across GM light trucks and SUVs from the late 1990s through the mid-2000s, but always verify axle size and OE part number before ordering.

• Fits Chevy Silverado/Sierra 1500, Tahoe, Yukon, Suburban, Avalanche and select HD/HD Classic models listed by year.
• Compatible with S10, Sonoma, Blazer, Jimmy, Bravada, C/K1500, Express and Savana 1500 where specified.
• Check for 8.5/8.625" ring gear and 10-bolt housing; confirm OE number 697-706 or 15290822 for exact match.

How does the kit prevent leaks and internal wear?

The kit includes a form-fit gasket and precisely machined mounting surface to create an even clamping seal when fasteners are torqued to spec. A pre-installed magnet helps trap ferrous debris so it doesn’t circulate with gear oil, reducing abrasive wear on gears and bearings.

• Complete gasket and fastener set ensures consistent compression and sealing across the flange.
• Pre-installed magnet captures metal particles before they recirculate.
• Flat mounting surface reduces leak paths commonly caused by warped or damaged covers.

Is the construction durable enough for daily driving and towing?

Manufactured from alloy steel with stainless steel fasteners, the cover provides structural rigidity to resist deformation and corrosion from road salts and moisture. The robust build maintains a stable seal under typical load and towing conditions when installed correctly.

• Alloy-steel cover resists cracking and holds gasket pressure over time.
• Stainless fasteners reduce corrosion where exposure is frequent.
• Stable flange design helps maintain torque and sealing under load.

What comes in the package and what support is available?

The box contains one rear differential cover, one matching gasket, one magnet, and ten mounting fasteners — everything needed to replace the cover itself. KOONDHEEND backs this product with a two-year professional quality assurance policy and offers free returns and exchanges if issues arise.

• Included parts: cover, gasket, magnet, and ten bolts for a one-stop replacement.
• Two-year quality assurance with free return/exchange policy from KOONDHEEND.
• Customer support available for fitment or warranty questions prior to installation.

Who is this for? This kit is aimed at DIY mechanics and professional technicians working on late-1990s to mid-2000s GM 10-bolt rear differentials who need an OE-style replacement cover. It’s especially useful for owners replacing a leaking or damaged cover, shops performing routine axle service, or anyone rebuilding a rear differential who wants a complete, ready-to-install kit that matches the factory bolt pattern and includes a magnet for added wear protection. Always confirm your axle ring gear size and OE part reference before purchasing to ensure proper fitment.