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2017-08-08B&M Hi-Tek Cast Aluminum Diff Covers for GM 8.875" 12 Bolt Truck

By: B&M08/08/2017 < Back to Blog Home

Designed to fit most vehicles with GM 8.875" 12 Bolt Truck differential, however each vehicle may have other interfering components and adequate clearance and fitment should be verified prior to purchase & installation. Refer to ID guide and measurement diagram for specific dimensions.


B&M Cast Aluminum Differential Covers are designed to strengthen the differential by preventing case distortion and ring gear & bearing cap deflection. Constructed of military grade (MIL-A-8625) black anodized A356.0-T6 aluminum, these rugged covers significantly increase the fluid capacity and dissipate heat much faster than the stock factory unit to prolong the life of your ring and pinion gears. Additional features include an engraved B&M logo, drain and fill port locations, a magnetic drain plug for catching ferrous metal particles, and complete hardware and installation instructions. Note: Gasket not included


-Load Bolts Provide Additional Support to Bearing Caps

-MIL-Spec Black Anodized Finish

-A356.0-T6 Aluminum Construction

-Adds 0.5 Quart Fluid Capacity and

-Cooling/Strengthen Ribs

-B&M Logo Engraved


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