Re: torsion tweak?
32's won't fit without either a suspension lift or a body lift(3") or both!
31x10.50s will fit with the t-bar crankup, as long as you don't turn the wheel to full lock(side lugs hit swaybar). 30x9.50s will fit perfectly with the t-bar crank, though without rubbing. Also keep the stock wheels or ones with identical backspacing. Good luck.
1989 GMC S-15 4x4 4.3L/700R-4, 3.08s, 31" Sport Kings For Sale
1985 S-10 4x4 Soon to have 3504BM/TH350/D44/14FF, 35" Boggers