The stock backspacing if 6.5" . When you add the offset it might bring it back to 6.2" (not sure of this aspect). But Im dam near positive of the 6.5".
I dont think youll find many 6.5" aftermarket wheels out there. But if you keep a 5.5" BS, which is common, you wont suffer from any rubbing. If you plan to stick with a 17x8 wheel, the difference in BS from stock to the 5.5" is only 1/2".
(6.5"-5.5"= 1" difference, divide by 2 sides of the rim= 1/2" each side difference.).
When you notice a big difference is when you run a wider rim. Say you went to a 17x10 wheel with the 5.5" BS. You still only gain 1/2" form the BS difference, but you add 2" to the width of the rim thus giving you a total of 2.5" difference on the outside of the rim.
If you can give me the wheel spacs your looking at, I can run them throught the ole cranium and tell ya about the difference from stock.
I did alot of this reading and figuring when I bought new rims. Have a good one.
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