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Old 12-22-2022, 08:37 PM   #4
Rory McNeil
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Join Date: Jun 2007
Location: from Vancouver BC Canada, now in Nova Scotia
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Default Re: Fox Mustang stocker wheel questions

Pretty sure that the wheelwells on my 85 LX Hatchback were the same as a 87 thru 93 Mustang, I ran 9x28MTs, , 9x29 Hoosiers, and 9x29 1/2" MT slicks om my 85, using both 15x8" and 15x9" Weld Draglites, with 5 1/2" backspace. The 28" fit with no wheel opening modifications, the larger tires required re working of the lower front area. All combinations required some hammering of the inner wells for clearance. For rear suspension, I used Maximum Motorsport non adjustable lower arms, "Auto Weld" adjustable uppers, which also raised the rearends upper mount position, (similar to GM "No Hop" bars), and Strange adjustable rear shocks. I tried 4 cylinder, Moroso, and 5.0 GT rear coil springs, on my car, which was a stick, the heavier GT springs worked the best. I also used a rear sway bar from a later FOX GT Mustang, as well as a pair of Air Lift air bags, with seperate lines for left and right. Some guys just used 1 in the RR, but since I had 2 I used both, although with only 5 psi in the left bag, right varied from 20 to 35 psi. Not sure if it is absolutely necessary if you are using an automatic, but reinforcing the mounting points of the body is a good idea, they have been known to crack and rip out. Much better (and easier) to reinforce them before they get damaged, than afterwards. Again, not sure if it is needed with an automatic, but on my stick cars 8.8 rear end, I had the axle tubes welded to the cast center, and after bending the tubes, braced the axle tubes to the center, and used a load bolt aluminum rear cover.
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M/S 85 Mustang

Last edited by Rory McNeil; 12-22-2022 at 08:40 PM.
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