Thanks for all of your help. I think that I'm going to try and find a pumpkin somewhere around here and swap for 4:10 gears. Has any body here put a T-5 in a 3/4 ton? I would like to have more info on that swap. If I replaced the pumpkin with one from 67-72 then could I re gear that pumpkin for 3:38 or 3:55 gears?