Drivetrain Differentials and Rear-End Components

B&M

DIFF COVER, GM 9.5" 14-BOLT CAST ALUM.

$618.84

SKU: B00M 70505

In Stock
In Stock
Ships by Jun 8
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The B&M 70505 is a Hi-Tek cast aluminum differential cover designed for GM 9.5 inch, 14-bolt rear differentials. It features A356.0-T6 aluminum construction and load bolts that provide additional support to the bearing caps. The cover offers an extra fluid capacity of 0.5 quarts. This kit includes the differential cover, differential cover gasket, 75W-90 synthetic gear oil, limited slip additive, and black RTV silicone gasket maker.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandB&M
Part NumberB00M 70505

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy