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Unread 10-12-2013   #1 (permalink)
Reggiejva1991 is offline Rookie


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Default 1991 mustang max tire width rear?

Wanted to know if any one can tell me what is the max tire size for the rear I can install on a stock chassis fox body without tubbing.Ive seen that you can get lower offset arm which I will purchase .Need to know offset,height and width without rubbing and can I get a taller spring for more clearance .preferably drag radial.
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Unread 10-12-2013   #2 (permalink)
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I've got a 275 45 17 in the rear without rubbing, you can fit a 315 back there but you will need to roll the quarters..

Do a search on this forum, this question has been asked several times...I myself got the answer I needed here for tires...good luck.... Oh and I'm using factory cobra wheels from a 96 on my 89 and they are 9" wheels not sure of the other specs but they fit great!


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Unread 10-13-2013   #3 (permalink)
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I've got a 295 35 18 on mine, on a 10" wheel. They're pretty much flush with the fender lip and I have less than 1/2" between the inside of the tire and the sheet metal. No quad shocks. If you worked on the sheet metal in the wheel well a little, I'd think you could go to a 305 or maybe a 315, but they'll need to stick all the way out to the edge of the fender for sure. They'll rub if the car is very low, so rolled fenders are a must.
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Unread 10-13-2013   #4 (permalink)
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I can fit 10.50-28x15 tires or 275/55R16 tires. The max I can fit is about 28 inches tall and section width about 11-12 inches.

I have crimped the lips, but still have quad shocks. If you flip the quad shocks around and remove the plastic cover, they don't hurt anything.
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Unread 10-14-2013   #5 (permalink)
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285x17 on 9" rims have worked fine on all my cars (even my convertible)

285x17 on 10" rims rub when the rear articulates going onto driveways etc.


In each case above, 1/4" spacer was used. No fender rolling.

Last edited by CrashTest; 10-14-2013 at 07:48 AM. Reason: cc
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Unread 10-14-2013   #6 (permalink)
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Ive ran a MT 26"x11.5"x15" on my 91' fox with no rubbing. Though my quad shocks are gone, and fenders are rolled...
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