Proform Chevy Bowtie Rear Differential Covers

Customize and Stabilize Your Rear Diff

These Chevy Bowtie differential covers not only look great with their durable black-crinkle finish but also add key performance upgrades to your rear housing for high-horsepower situations. Designed to stiffen up the main cap area, the housing flex of the differential is reduced, increasing gear life and decreasing the amount of ring deflection.

chevy differential cover

The Bowtie Emblem is prominently displayed with a precision CNC-milled finish. The covers include two bolts to stabilize bearing main caps, fluid capacity and magnetic drain plugs, and additional mounting hardware. Product offerings are for 7.5 GM, 8.2/8.5 GM (10-bolt), and passenger car (12-bolt) rear housings. The differential covers can be installed in just a few minutes without special tools.

Chevy official licensed product


What Are the Benefits?

1. Stiffened main cap area for housing flex reduction
2. Increased gear life
3. Decreased ring deflection


What’s Included

1. Two bearing main cap stabilizing bolts
2. Fluid capacity and magnetic drain plugs
3. Additional mounting hardware

Available for 7.5 GM, 8.2/8.5 GM (10-bolt), and passenger car (12-bolt) rear housings.


Installing a 7.5 GM 10-Bolt Differential Cover
Installing a 12-Bolt on a Chevelle


Proform logo







PO Box 306

Roseville, MI 48066

ABOUT Proform®

PROFORM┬« Parts (Specialty Auto Parts U.S.A., Inc.) is a leader in the High-Performance Automotive Aftermarket by engineering and manufacturing creative products from intelligent concepts. Our goal is to provide the Performance and Race Enthusiast with innovation, quality and affordability in all our products – giving the customer maximum value. This is the result of experienced and efficient global manufacturing – not cutting corners!