Ring gear bolt for GM 12 bolt car & truck, 8.2, 8.2 for Buick/Olds/Pontiac, 63-79 Corvette & 55-62 GM Car & Truck. 3/8 x 24. Product Features:Ring gear bolt for GM 12 bolt passenger car and truck, 1955-1964 passenger car and truck, GM 8.2, 8.2 Buick, Oldsmobile and Pontiac and 1963-1979 Corvette3/8 x 24 thread
