This Yukon Gear & Axle 3/8‑inch ring gear bolt washer fits a variety of GM 12‑bolt car and truck applications, plus earlier passenger car patterns including 1955–1964 models and many 1963–1979 Corvette/8.2‑inch Buick, Oldsmobile and Pontiac rears. It provides the washer component specified for those ring gear bolt assemblies and is one of many small parts Yukon offers to complete differential rebuilds.
Yukon Gear 3/8in Ring Gear Bolt Washer For GM 12 Bolt Car & Truck / 8.2 Bop & More