1966 Mustang wheel/tire size fitment? - Ford Mustang Forum

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post #1 of 9 (permalink) Old 10-23-2007 Thread Starter
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1966 Mustang wheel/tire size fitment?

Hi, I was wondering if anyone here has put 16x7 with 225/60/16 tires on all four corners of a 66 coupe. I would like to know how they will fit. 620 front springs are the only modification up front. Pictures would be helpful as well


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post #2 of 9 (permalink) Old 10-23-2007
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Hiya, I see this is your first post. Welcome to the site.
I've seen a 65-66 model with new S197 wheels on it, I have a picture of it in my gallery, the car show pictures. You might need to hunt for it, there's a lot of pictures. But 16's with the proper tire size and height shouldn't have a problem fitting.

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post #3 of 9 (permalink) Old 10-23-2007
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Wimblton white 66 coupe C code 289 auto
97 Jeep Wrangler 4.0 auto, lift ,winch,33's etc
04 Holden VY SS 5.7 auto (wifes)
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I could be wrong...... I have been before.
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post #4 of 9 (permalink) Old 10-23-2007
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The Mustang Shop guy I'm working with in AZ tells me that I can run nothing larger than 205/60/R15 using a 15x7 wheel on a 66 coupe but I see the chart from Karnieone disputes this. This will have Wilwood brakes which increases the trach about 5/8" on each side. I've also read that you can go with a wider tire using 17 inch wheels because the steering linkage will fit inside the wheel instead of butt up against it. You apparently don't get this advantage with a 16 inch wheel. Am I getting good information?

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post #5 of 9 (permalink) Old 10-23-2007
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my TTIIs are 16x7 with 4" bs and 215/55-60s all around.

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post #6 of 9 (permalink) Old 10-23-2007
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My first post was going to be in the intros, but this caught my eye. I had a 66 KGT FB with 15x8's and 225/50/15's. From what I remember, the B.S. could not be more than 4.25", to avoid tie rod end interference. The biggest fender clearance issue was at the front lower corners. Also my fender lips were rolled. This was my "performance upgrade" from 14x7's w/ 225/60's, over 15 years ago. Seemed like a big deal then, but now I read they're fitting 17x8's w/ 245/45's! The tire size seems feasible, but some of the B.S. I'm hearing of are 4.5" or more. Not sure how that's clearing the suspension and steering. Oh yeah, the other problem was tire height. I could not run more than a 25" dia. as the car was lowered by 1". If the tires are not mounted yet, test fit the rim first. The key measurement is the backside spacing.

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post #7 of 9 (permalink) Old 10-24-2007
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Originally Posted by krankieone View Post
I like mine better
Mustang Photo Archive
because instead of 'rules of thumb' it is actual combinations submitted by real people with real mustangs. You can use it to create your own rule of thumb, match an exact combo, or simply as a guide to give you an idea of how you might expect something to fit on your own car.

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post #8 of 9 (permalink) Old 10-24-2007
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Dear lord, what a bunch of BS, thank god nick's chart made it up here. BACKSPACING IS IMPORTANT, NOT THE SIZE SO MUCH!! My new 215/60/15 fit just fine so far.

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post #9 of 9 (permalink) Old 10-25-2007
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Theres a nice wheel size chart on this link Mustang Photo Archive
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