rear axle

Before 1954 on 1/2 tons, the frame rails were given a large arch as they passed over the rear axle housing. With a broken leaf spring or overloading the bed with too much weight, the frame rails will lower many inches before contacting an axle bumper. It was a system that worked for over 20 years on 1/2 tons when...

The placement of rear axle bumpers by GM on 1/2 tons proved to be an important feature. Owners can often load cargo over recommended weights, their shock absorbers may lose their resistance, and there is the existence of uneven road surfaces. All this can make axle bumpers very important. During the hauling of freight, these bumpers occasionally stop metal to...

Mechanical components on trucks were usually kept for many years by GM. Unless an improvement was needed, there was no need to change a proven design. An excellent example of this is the rear ½ ton axle bumper. The design was used from 1929 through 1946 on Chevrolet and GMC ½ tons. A rubber bumper is held down on the...