lol bit of a gravedig scotty.
you will need a bodylift to fit a GU gearbox (unless its the 2.8box)...(probably possibly without one but i still had to massage the floor pan/trans tunnel), easiest to run a 1 piece shaft for the rear with a slip. The gearing is pretty sweet. takes off in high range with 42's better then the nav box did with 35's, but thats also with 4.6's in the diffs. With 35's on the gearing is pretty good, although i havent had it over 80 on the speedo.