hi i was wondering what backspacing i will need for the following. I am going to get mickey thompson classic 2 wheels with 35x12.5x15 mickey thompson mtz tires. my 03 level 2 will has a 3 inch body lift and a 4 inch superlift. I also planned on leveling the t bars. Any help would greatly be appreciated. thanks

 

With 8" wide wheels I would go with 3.75" BS, which is what most aftermarket wheels are going to be.
For 10" wheels I would probably look for something like 4" BS.

 

my classic 2's have a backspacing of 3.313"....you'll be fine with those tires it won't rub at all. I only have a body lift with my 33s which are the same width and they don't rub.