so im wondering if any one is running 17x8 rims cause im trying to figure out what backspacing to go with i want the tires to stick in more the the back but idk if i go with the stock backspacing on a 8" rim if it will stick out too far so any imput and pictures would be great

 

On a 17" wheel, the max you'll wanna go with is a 4.5" bs.

EDIT://<86TA>\\ is correct. 5" is the actual bs of a 9"/0 offset wheel & what one can go with.

 

ok is there a way to figure out what backspacing i need to keep it about the same spot as stock?

 

a 17x8 with 4.5 in teh front will fit like a stock 16x8 front wheel. You can put the same wheel in teh back and they will sit a little further out that a stock 16x8 rear wheel, but will still be nicely under the fender.

you can go as far a 5" of BS in the front, to pull them in a little more if you want, before you start hitting the tie rod. it will be close.

 

To have it equal to stock 16" x 8", which will be easy since they are both 8".....
http://www.skulte.com/adapterfaq.html

 

my stock wheels are the 15x7 idk if that will make a difference or not

 

the 15x7's have 4" of BS i believe, may be 4.25?

If i was buying the 17x8, i wouldl use 4.5" of bs front and rear. They will sit out a little more than what you have now, but it will be fine.

Like i said before, you can use 5" front and rear for that matter too, if you want them in more.

FWIW, the factory 8" wheels used 4.5 in the front and 5.125 in the rear.