Hey, im thinking of getting some KMC monsters in 18x9 and wrapping them in Nitto Mud Grapplers in 33x12.5 size. What kind of backspacing would i need for a 97 f150 4x4?? Id appreciate any information, thanks!

 

I would find one with around 4.5'' backspacing...that is what your stock rims are........with that much backspacing your new setup would stick out 2.5'' further than stock (7.5'' rims with 265's) You would still need to crank the t-bars and probly trim a little.

 

I agree. I'd go with 4.5 or 5 inches of bs.

 

I personally would go with 4.5....I have them and love the way my truck sits.