the stock wheels have 4" backspacing...the centerlines have 4 also...the smallest adapter i can get is 1"
**WARNING NOVICE ADVISE** 
From what I have read so far in my research it will poke. The wheel has 4" of backspacing and you negate that by adding a 1" adapter to a 3" backspacing. It is my understanding that the least you want to keep it under the fenders is 3.25". So depending on how low you are they can work, but they will be past the fenders.
CAP Please correct me if I'm wrong.