The addition of fat tires or an old, '60s-style heavy-duty differential swap often calls for a narrowed rearend housing and shortened axles. "So, what's so tough ...
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, ...