Proper backspacing

72bluNblu said

I agree, except for two things:

1. A 245/35/18 is only 24.8" tall. You'll want 245/40/18's, which are 25.7" tall.

2. No reason not to run 18x8's up front, especially if you're going to run 245's. And the 5.5" backspacing works better for 18x8's anyway.

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Was playing it conservative in the front with a shorter 24.8" diameter tires. But with 5.5" effective backspacing I think 25.7" will still work even with a 8" wide rim.

What is the thickness of adapters you are looking at?

A rim with the needed extra backspace might look pretty strange. If you converted to big bolt disk up front, you could get away with less backspace on the rim itself.