Buick, Chevrolet, Pontiac Differential Ring and Pinion - Rear

Ring & Pinion Set ZG GM12P-355 ,**,12P,3.55,DIFFR&PGM12342C,GEAR,GM,GM12-355C,R&P,STANDARD,USA,ZG, USA standard Ring & Pinion gear set for GM 12 bolt car in a 3.55 ratio 12P GM 3.55 R&P ** USA STANDARD GEAR ** USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment testing. Fits GM 12 bolt passenger car 8.875" ring gear diameter 30 spline pinion 12 ring gear bolts 3.55 ratio USA Standard Ring & Pinion gear set for GM 12 bolt car in a 3.55 ratio