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B&M 70503 Differential Cover for GM

Free shipping on orders over $29.99

$276.95

$ 99 .00 $99.00

In Stock
  • A356.0-T6 aluminum construction
  • B&M logo engraved
  • Load bolts provide additional support to bearing caps
  • 0.4 quarts extra fluid capacity and cooling/strengthen ribs keeps temperature cooler
  • Fill plug and magnetic drain plug make it easier for servicing


The B&M Cast Aluminum Rear End Cover was designed to strengthen the rear end by preventing case distortion, ring gear and cap bearing deflection. Constructed of A356.0-T6 aluminum, this rugged unit also dissipates 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, added fluid capacity for better cooling, magnetic drain plug for catching ferrous metal particles, complete hardware, installation instructions and a one year warranty.


mike dell
September 4, 2025
Pls be advised the picture makes cover appear black or dark grayIts is in face silver aluminumWith polished logo
Stephen73
July 3, 2025
Installed this on my 1968 Pontiac GTO rear differential.10 bolt BOP.
Steve M.
April 10, 2025
hard to find a good cover for a bop 10 blot 8.2 rear end. this is by far the best one that I have ever used. well built and seals perfectly to the housing. B&M hit this one out of the park.
Michael
February 11, 2025
The cover looks great on 1967 Firebird
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