Reinforce the 10-Bolt: Essential Armor for Chevy, GMC, and Hummer.
The GM 10-Bolt (8.5" and 8.6") rear axle is the backbone of the "Bowtie" world, found under millions of Chevy Silverados, Tahoes, K5 Blazers, and the Hummer H3. While this axle is decent for daily driving, it has a reputation for housing flex when subjected to heavy towing, V8 torque, or 35-inch tires. The factory stamped steel cover offers zero structural support. The ARB 0750007B is the solution, replacing that thin lid with a rigid nodular iron casting.
At Overland Truck Store, we consider this a mandatory upgrade for any built GM half-ton or Hummer. By bolting this cover on, you are essentially adding a truss to your differential. The computer-optimized cross-brace design stiffens the entire axle housing, preventing it from distorting under load. This keeps your ring and pinion gears properly meshed, significantly reducing the chance of the dreaded "10-bolt failure" on the trail.
Finished in a stealthy black powder coat, this cover updates the look of your truck while adding serious utility. It features a high-power magnetic drain plug to trap metal shavings and a unique integrated dipstick/filler cap, allowing you to check your gear oil level and condition instantly without the mess.
Features & Specs:
-
Application (Full-Size):
-
Chevy/GMC 1500 Pickups (K10/K1500/Silverado/Sierra): 1982-2008 (Half-Ton models).
-
Chevy/GMC SUVs (Tahoe, Yukon, Suburban, K5 Blazer, Jimmy): 1982-2008.
-
-
Application (Mid-Size & Hummer):
-
Hummer H3 & H3T: 2006-2010 (Rear Axle).
-
Chevy Colorado / GMC Canyon: 2009-2012 (V8 and select off-road models).
-
Chevy S-10 Blazer / GMC Jimmy: (ZR2 and 4.3L High-Wide models).
-
-
Axle Fitment: GM 10-Bolt (8.5" or 8.6" Ring Gear).
-
Material: High-tensile Nodular Iron.
-
Finish: Black Powder Coat.
-
Protection: Increases housing rigidity to extend gear and bearing life.
-
Maintenance: Includes magnetic drain plug and dipstick for easy service.
Installer Note:
-
Axle Identification: This cover fits the GM 10-Bolt axle (10 bolts on the cover, roughly circular shape).
-
"Heavy Half" Warning: Some heavy-duty 1500s or "Max Trailering" packages may have come with a 14-Bolt (9.5") rear axle. Please count your cover bolts before ordering. If you have 14 bolts, this cover will not fit.
-
Hummer H3: This unit fits the Rear axle of the Hummer H3/H3T.
-