We compiled some of them, found the advantages of each, and noted what to look for when working with an AMC axle. There are three basic versions of the AMC 20 that can be found in the ’76-’86 CJs.

The AMC Model 20 rear axle was at one time a common component in Jeeps, some American Motors cars, and as IFS/IRS differentials in the Hummer H1. Easily identified by a round cover with 12 bolts ...