33 Spline Upgrade GM 12 Bolt Car 68-72 Chevelle and El Camino 70-72 Camaro R and L Rear Axle Revolution Gear

Revolution Gear and Axle, 33 Spline Upgrade Rear axle shaft for GM 12 Bolt Car 68-72 Chevelle and El Camino, 70-72 Camaro, fits both Left and Right side, 30.12 Inch 33 Spline. Revolution rear axles are made from 1541H Steel and utilize a state of the art computer controlled heat treated process. The use of better material and better heat treating process gives our replacement axles a 10 Percent increase over the OEM axles.