Hy Phillip Lott, first we have to establish exactly what rear axle your truck has. Is your truck equipped with a single speed or two speed rear axle? What are you trying to achieve by changing the rear axle ratio, more road speed, the ability to start heavy loads or what? Does your truck have a plate on the inside of the glove box door which lists the original equipment? Could you provide some pictures of your rear axle, differential and rear wheels?
