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I recently had a tire company install tires on a set of American Racing 15x7 Torque Trust Rims I purchased staright from the manufacturer. The fronts are 215's and the rears are 235's. I'm having problems with rubbing in the rear anytime the road is slightly bumpy ao "wavy". The front tires ...well...very little clearance with the front fender when the wheel is completely turned. Is there a practicle way to help keep these rubbing issues from occuring? I thought that may having the leaf springs recalibrated back to original stock height would help or even having it recalibrated a bit higher (1/2 inch to inch). Air shocks? I'm no mechanic so any ideas or thoughts would be appreciated. I know the best idea would be to go with smaller rims and tires, but I like the look of my current set up not to mention I've spent a fortune. I called American Racing and was told theses should work with no problems. Could it be a tire issue? Thanks for your ideas in advance.
Jeff
 

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Adding coil over shocks or air shocks or an extra leaf might be just the thing for the rear.
Replacing the coils with new coils or adding nitrogen charged shocks on the front might cure part of the problem on the front.
Any change in the offset on the rim just moves the problem from the outside of the tire to the inside of the tire. This car was not designed for that wide a tire so compromises will occur. Just don't, please don't, add taller shackles on the rear; they look so AMATEUR
My performance car (1969 Galaxie) had to "tubbed-out" to fit drag tires.
 

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You say your actual problem happens when you go down a bumpy road so I will assume you are bottoming out at the top of the fenders and not having side rub. A few suggestion, try new or larger bump stops which should be on top of the axle or on the body some where. Even if these are old or missing it could help but expect a little harder ride. Also try stiffer or firmer riding shocks to limit the amount of travel of the rear axle. All of these will make the ride firmer. I understand how it does look better with them tucked up inside and not raising the car but that might be the best way. Bring the rear up by either adjusting the shackles and adding the bump stops and firmer shocks should all help.
 

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You don't say what the back space is on the wheels. 15's should fit with no problems, as long as the back spaceing is correct. The back space is the width from the flat part of the wheel that goes next to the brake drum, to the back side of the tire side wall.

Lay a stright edge across the tire, and then measure the distance to the mounting surface. Now that you have this info, you should be able to look up on the web to find out what the max back spaceing you can use with out rub.

Try this http://www.mustangforums.com/
 
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