Does anyone know the max backspacing I can run on the rear of my truck (In Sig) I think I may have found a guy who can make a 15''x10 drag race wheel for my truck and I want as much under it as possible at least 6'' backspace would be nice thanks for youre help.

 

I think you can go 6.5 with no problem maybe more.You would need that much with a 10' rim to keep it under the truck.

 

to tuck it without cutting the fender lips, you should need at LEAST 7.5" backspacing

 

I'm a visual guy, so here ya go. This is a 9.5" wide rim with 6" of backspacing. 10 w/6.5 would bring it to the same spot, with 7.5 bringing it under that little fender lip.

 

Thanks for youre help my 20s are 9'' wheels with 5.5'' of bs so I think I will go with a 6.5'' bs on the 15''x10''s is there anyone on the site runnin 15'' wheels