1991 mustang max tire width rear? - Ford Mustang Forum

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post #1 of 6 (permalink) Old 10-12-2013 Thread Starter
Reggiejva1991's Avatar
Joined: Oct 2013
Location: Richmond
Posts: 1
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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post #2 of 6 (permalink) Old 10-12-2013
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Joined: Jan 2011
Location: Queen Creek
Posts: 241
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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1989 Ford Mustang Lx 5.0 T-5 5 speed converted, completely stock, Deep Emerald Green, 5 lug conversion, Cobra Wheels, UPR rear upper and lower tubular control arms, UPR tubular k-member kit, UPR caster/camber plates; 347 stroker (Eagle crank and rods) AFR 205 heads....
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post #3 of 6 (permalink) Old 10-13-2013
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Joined: Oct 2012
Location: Owensboro
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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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88 LX - 302, Vortech V3 SI, Powerpipe, 80mm ProM, 50lb injectors, 75mm TB, Edelbrock RPM II, Edelbrock Heads, Harland Sharp rockers, BBK 1 3/4" LTs, X pipe, Flowmasters, 3.73 gears, 5 lug / 4 wheel disc, FR500 wheels. 529rwhp / 492rwtq
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post #4 of 6 (permalink) Old 10-13-2013
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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.

89 LX coupe with 363, modified PT 7675 CEA turbo with billet wheel (at moment), Super Glide transmission, street legal with full interior. Runs low mid 5's in the 1/8th, mid 8's in the 1/4 through mufflers on Pro Radial tires
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post #5 of 6 (permalink) Old 10-14-2013
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Location: California
Posts: 258
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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post #6 of 6 (permalink) Old 10-14-2013
Exiled's Avatar
Joined: Apr 2012
Location: Dallas
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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...

1991 5.0 Mustang LX-Hatch, 70mm MAF, BBK Cold Air Intake, BBK Headers, BBK X-Pipe, Flowmaster 40's, UPR C/C Plates, UPR Subframe Connectors, UPR Control Arms, Cobra Sway-Bar, FRPP Aluminum Driveshaft, FRPP "C" Springs, FRPP 31 Spine Trac Lok, Moser 31 Spline Axles, FRPP 3:73 Gears, Tokico Blue Shocks, King Cobra Clutch, MSD Ignition, Taurus Electric Fan, Steeda Tri-Ax Shifter, & More
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