Ive been asking a lot of questions lately but thats what a forum is for right? So bare with me, I dont really understand backspacing and all that. It seems that 04+ run a 6x135 pattern so thats not a concern I just see a lot of different backspacing from wheel to wheel. For example would I be ok with this wheel?
http://www.wheelsforless.com/search_...duct_ID=612285

 

I'm assuming you are asking about the 20x8.5 with 6" of backspace. You will be fine with that wheel, it will actually sit further in than some stock wheels. That may be a problem if you are thinking about a lift.

 

Backspacing is the distance from the mounting surface of the wheel (where it bolts to the hub) to it's rear edge. The more backspacing, the more the wheel tucks in. The less backspacing, the more the wheel sticks out. As a guide the OEM 17 and 18 inch wheels on the 04-07's are 7.5 inches wide with 5.5 inches of backspacing.