I think I'm gonna get a set of 15x10s for the back of my Lightning for the track and stick some 28x12.5 SPortsman Pros on them. What back spacing should I get? Also, anyone know of a place with some cheap wheels that would work for this?

 

What year is your truck . I don't think 15's will fit on the Gen II trucks . I just put a set of 16x8 American racing wheels with 28x11.50x16 et streets on a 2000 Lightning .

If you need some wheels and tires shoot me an email . I wouldn't waste the cash on the sportsmans if you are going to the track .