Richmond Gear 79-0031-1 Pro Gear Ring and Pinion Set Height: 5.250 Width: 11.000 Length: 15.250 Weight: 16.1 Fitment: 1972/Pontiac/GTO/Base/7.5L 7456CC 455Cu. In. V8 GAS OHV Naturally Aspirated::Rear^^1972/Pontiac/GTO/Base/7.5L 455Cu. In. V8 GAS Naturally Aspirated::Rear^^1972/Pontiac/GTO/Base/6.6L 6555CC 400Cu. In. V8 GAS OHV Naturally Aspirated::Rear^^1972/Pontiac/GTO/Base/6.6L 400Cu. In. V8 GAS Naturally Aspirated::Rear^^1972/Pontiac/Grand Prix/Base/7.5L 7456CC 455Cu. In. V8 GAS OHV Naturally Aspirated::Rear^^1972/Pontiac/Grand Prix/Base/7.5L 455Cu. In. V8 GAS Naturally Aspirated::Rear^^1972/Pontiac/Grand Prix/Base/6.6L 6556CC 400Cu. In. V8 GAS OHV Naturally Aspirated::Rear^^1972/Pontiac/Grand Prix/Base/6.6L 6555CC 400Cu. In. V8 GAS OHV Naturally Aspirated::Rear^^1972/Pontiac/Grand Prix/Base/6.6L 400Cu. In. V8 GAS Naturally Aspirated::Rear^^1972/GMC/Sprint/Custom Standard Cab Pi...