A 4th gen rearend is 3.5" wider than a 3rd gen. If you don't have more than 1.75" of tire to fender clearance now, you'll need to use 4th gen wheels which have more back spacing. That would be in addition to swapping/welding 3rd gen mounts onto the 4th gen axle housing.
393 Stroker, Tunnel Ram, Dual Holley's
"I only live for today, but I'm one day behind"
Eats Rice and Poops Out Fords.
Last edited by Camaro 69; 03-17-2011 at 11:37 AM.