2003 Dodge Ram 2500 Quad Cab
My 2003 Dodge Ram 2500 Heavy Duty pickup has a AA&M rear axle with 11 1/2-inch ring gear(from a 3500) with helical-gear limited-slip differential and a AA&M front axle with 9 1/4-inch ring gear. They both have a ratio of 3.73:1. Each axle sports large 13.9-inch-diameter disc brakes. It also has ABS. It is powered by a 5.9L Cummins engine producing 250 hp and 460 lb-ft of torque stock. This is before adding in the modifications below.