Auburn Gear 542058 Features: Smooth Quiet Torque-Sensing Operation Backed By 1 Year Warranty Covered By 4 year Differential-Replacement Exchang Made In The USA High Performance OEM Type Design Height: 9.25 Width: 8.50 Length: 8.50 Weight: 17.00 lbs Fitment: 1988/Pontiac/Safari/Base Wagon 4-Door/5.0L 307Cu. In. V8 GAS OHV Naturally Aspirated::Rear, Rear 7.5 in. (10 Bolt)^^1988/Pontiac/Firebird/Trans Am Coupe 2-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Rear, Rear 7.625 in. (10 Bolt)^^1988/Pontiac/Firebird/Trans Am Coupe 2-Door/5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated::Rear, Rear 7.5 in. (10 Bolt)^^1988/Pontiac/Firebird/Trans Am Coupe 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::Rear, Rear 7.625 in. (10 Bolt)^^1988/Pontiac/Firebird/Trans Am Coupe 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::Rear, ...