GM Full-Size Trucks 1980-1987 Repair Guide



For all trucks, 1980 through 1987, the rear axle numbers are on the front of the right rear axle tube inboard of the upper control arm bracket, except for Dana-built axles, which are stamped on the rear surface of the right axle tube. Front axles on 4 x 4s are marked on the front of the left axle tube.