I put a Dana 60 from a mid-70's 3/4 ton in a 59 Burb, and had major tire/fender clearance problems. It's a great rear axle, with limited slip center section and all, but I had to do some pretty severe hammering on the inner fenders to get some tire clearance! When the Burb goes back on the road with a Cadillac 500 and a Turbo 400, I'm going to custom-order some special offset wheels to allow me to rebuild the wheel openings to normal appearance. When that happens, I'm also planning to go with a narrowed front crossmember from an IFS 3/4 ton to have 8-lug wheels all the way around.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!