These vehicles use various rear axles. The axles can be identified by ring gear size in inches, by manufacture Saginaw (Corporate) or Dana and by the type of axle shaft used (semi-floating or full floating). Corporate axles include the 7 1/2, 7 5/8, 8 1/2, 8 5/8, 9 1/2, and 10 1/2 inch ring gear axles. Dana supplies a 11 inch ring-gear axle. The locking differential is supplied by Eaton. The 7 5/8, 8 5/8-inch ring gear axle is semi floating with an alphanumeric broadcast code on the right front part of the axle housing. The Axle housing cover does not have a drain plug.