How bad is the clunk? I have heard that this is normal in broncos. I have the clunk as well, but do not worry about it. The noise is very minor, and I have checked the driveshaft and ujoints/cv in the rear...tight as a drum.
The Juice, '95 Ford Bronco XLT, White, 5.8, E4OD, 4" Rancho, 35's, 4.10, ARB/LSD, lots else