I've already made two mistakes, but I'll keep trying until I figure this stuff out. I just purchased a BJ70 with 400,000k on it. The springs are weak, should I re-arc them or replace them. What kind/type of shocks should I get? I would like to put a posi. or a locker in the rear end-any suggestions? Finally I would like to put 33" under it; is there a small lift kit (2-4") on the market? Thanks for the help. Dougundefined