Yukon Gear YP C5-GM8.5-KIT GM 8.5 rear diff cover full view
Steel diff cover with fill plug and bolt holes detail
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Yukon Gear Rear Differential Cover Kit for General Motors 8.6in Rear

YUKYP C5-GM8.5-KIT
883584323679
Diff Covers
20+ Units In Stock - Ships Next Business Day
$ 71.89
$ 71.89

SKU: YP C5-GM8.5-KIT | UPC: 883584323679

Yukon Gear Rear Differential Cover Kit for 1988-2006 GM 8.5/8.6in 10-Bolt

This Yukon Gear kit upgrades the rear differential on GM vehicles with 8.5-inch or 8.6-inch 10-bolt axles. It fits 1988-2006 Chevrolet and GMC trucks and SUVs including Silverado Sierra C/K series Tahoe Yukon. The cast aluminum cover adds strength heat dissipation and extra gear oil capacity for reliable performance during towing off-road use or daily driving.

Key Features

  • Cast Aluminum Construction: Provides durability and efficient heat transfer to keep differential temperatures low under heavy loads
  • Ribbed Design: Holds more gear oil for improved lubrication and cooling during extended operation
  • Magnetic Fill Plug: Traps ferrous metal particles from wear to protect gears and bearings longer
  • Complete Hardware Kit: Includes cover gasket cover bolts and fill plug for straightforward replacement
  • Precise Dimensions: 9.75 inches wide center-to-center on side bolt holes ensures bolt-on fit for GM 8.5/8.6in housings

Product Notes

  • Verify rear axle is GM 8.5in or 8.6in 10-bolt before purchase
  • Not compatible with Trailblazer Envoy Rainier or Bravada models using 10.25in wide covers
  • Cover adds 1-2 quarts extra oil capacity depending on housing

Installation Notes

  • Professional installation recommended.
  • Drain fluid clean mating surfaces apply gasket maker to gasket before assembly
  • Use provided bolts torque to 25 ft-lbs in crisscross pattern

This Part Fits

Year Make Model Submodel
1988-1998 Chevrolet C1500 Pickup 2WD/4WD
1988-1998 Chevrolet C2500 Pickup 2WD/4WD
1988-1998 Chevrolet C3500 Pickup 2WD/4WD
1988-1998 Chevrolet K1500 Pickup 4WD
1988-1998 Chevrolet K2500 Pickup 4WD
1988-1998 Chevrolet K3500 Pickup 4WD
1999-2006 Chevrolet Silverado 1500 RWD/4WD
1995-2000 Chevrolet Tahoe All
1992-1999 Chevrolet Suburban C1500 All
1988-1998 GMC C1500 Pickup 2WD/4WD
1988-1998 GMC C2500 Pickup 2WD/4WD
1988-1998 GMC C3500 Pickup 2WD/4WD
1999-2006 GMC Sierra 1500 RWD/4WD
1992-2000 GMC Yukon All
1992-1999 GMC Suburban C1500 All

Why Choose Yukon Gear?

  • Trusted brand with decades of experience building driveline components for trucks and off-road vehicles
  • Components engineered and tested for high-stress conditions like towing and drag racing
  • Direct bolt-on design using OEM mounting points for easy upgrades

Frequently Asked Questions

  • Q: Will this fit my 2002 Silverado 1500 with 8.5in rear?
    A: Yes it bolts directly to GM 8.5in or 8.6in 10-bolt differentials in 1988-2006 Silverado models excluding any aftermarket or oversized housings
  • Q: What material is the cover made from?
    A: High-strength cast aluminum that resists cracking while transferring heat away from the oil
  • Q: What warranty comes with this kit?
    A: Yukon Gear offers a limited warranty against defects contact Yukon customer service for details

Shipping & Handling

  • Method: UPS Ground or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed 14 x 14 x 5 inches
  • Weight: 7.8 lbs

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