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Differential Cover, 10 Bolt Oldsmobile, Aluminum W-27

Vehicle Specific View fitment
Part# : C240258
Sold As: Each
Ship Size: Standard
Price Match: Eligible
$98.99
List Price: $109.95
You Save $10.96
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Estimated the week of 12/25/2025
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Cast Aluminum

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.

WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1968–1972 Oldsmobile Cutlass  
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Differential Cover, 10 Bolt Oldsmobile, Aluminum W-27
Differential Cover, 10 Bolt Oldsmobile, Aluminum W-27