Ring and Pinion, 4.56 Ratio, Reverse; 55-12 Chry/GM/Ford, for Dana 60Alloy-USA, one of the brands from Omix-ADA, is a manufacturer of performance drive train products, high strength axle shafts and kits, and performance ring and pinion sets. We specialize in Jeeps, Chevy muscle cars, Mustangs, GM, Ford and Dodge trucks. WeMain FeaturesInstall Time2+ Hours