Auburn Gear 542061 Features: Lightening Fast Reaction To Changing Conditions Backed By 1 Year Warranty Covered By 4 year Differential-Replacement Exchang Made In The USA Height: 9.25 Width: 8.50 Length: 8.50 Weight: 22.00 lbs Fitment: 1973/Chevrolet/Impala/Base/7.4L 7441CC 454Cu. In. V8 GAS OHV Naturally Aspirated::Rear, Rear 8.2 in. (10 Bolt)^^1973/Chevrolet/Impala/Base/7.4L 7439CC 454Cu. In. V8 GAS OHV Naturally Aspirated::Rear, Rear 8.2 in. (10 Bolt)^^1973/Chevrolet/Impala/Base/7.4L 454Cu. In. V8 GAS Naturally Aspirated::Rear, Rear 8.2 in. (10 Bolt)^^1973/Chevrolet/Impala/Base/6.6L 6556CC 400Cu. In. V8 GAS OHV Naturally Aspirated::Rear, Rear 8.2 in. (10 Bolt)^^1973/Chevrolet/Impala/Base/6.6L 6555CC 400Cu. In. V8 GAS OHV Naturally Aspirated::Rear, Rear 8.2 in. (10 Bolt)^^1973/Chevrolet/Impala/Base/6.6L 400Cu. In. V8 GAS Naturally...