What is the widest rear tire and wheel can i put on my s10 for the purpose of drag racing without doing any type motification to the truck

best to check with Wheel max. go to wheelmax.com they have the proper sizes and what will fit and what will not.

its not really the size of the wheel but more the off set of the rear rim.

Can you put 22 inch rims on 91 s10???and be able to drop it real low?????? Or would it be good to do 20 inch in front and 22 in back??????

I fit a set on 325/50r15 nitto nt555r2s on 97 4.3 5 speed ext cab, 15x10 5in backspace bassets, leaves about a half an inch between the tire and the leaf but no clearance issues, tire comes all but dead even to the outside of the fender