4.56s would be best, but cheap would be an 8.8 with 4.10s and an LSD allready in it, and a late 80s junkyard dana 30 with 4.10s allready in it. Put some 297 shafts in and you are good. This will require a little welding, Perches on the 8.8. But, you may be able to get it all done for around...