18" wheels

72bluNblu said

Yes, it's easier to get an 18x9" on the front than a 17x9. I wouldn't plan on running a 17x9. I've only ever heard of one car that did it with a set of 17x9" Cobra R 5 spokes that had a 6" backspace, and he later admitted he had some clearance issues. Most 17" rims start to have outer tie rod end interference issues at about 5.6" of backspace.

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Who had the issue? I know Wracks ran 17x9's and had issues, but later on it was discovered he had dropped spindles, too.

An OEM 17x8 Mustang rim has an offset of +30mm, while the OEM 17x9 has an offset of +24mm. This works out to about a 1/4" difference between the 8" and 9" wheel as to where the inside lip sits with the 9" rim being closer. If the 8" rim clears the tie rod, the 9" should as well with a worst case 1/4" spacer.

Sorry, I know this is late, but just saw this had to ask.