As seen on
Sign Up to Get
10% Off Your Next Order!
+ 500 FREQUENT BUYER POINTS
Be among the first to receive Weekly Specials & OPGI News.
10% off restoration parts only. 500 Frequent Buyer Points added after promotional order ships. See welcome email for full details.
Sign up for texts from OPGI, and get all our best offers and more!
By subscribing to OPGI text messaging at 80205, you agree to receive recurring autodialed marketing text msgs (e.g. cart reminders) to the mobile number used at opt-in. Consent is not a condition of purchase. Msg frequency may vary. Msg & data rates may apply. Reply HELP for help and STOP to cancel. See Terms and Conditions & Privacy Policy.
ADDED TO YOUR CART!
Differential Cover, 10 Bolt Oldsmobile, Aluminum W-27
ADDED TO YOUR WISHLIST!
One of the rarest, yet "cool" options for the 1970-72 4-4-2's was the W-27 aluminum differential cover option. It held more fluid and was made of aluminum, so it kept the rear gear oil cooler, thereby increasing gear and posi-life. These are top-quality duplicates of the original W-27 rear covers. Proudly manufactured in the USA.
Find parts that fit your vehicle
