Tires rub wheel wells need some spring coil advice
 

I have a 1990 mustang that has 17 inch cobra wheels. When I run over bumps or have someone in the back seat they rub or bottom out. Will putting new factory spec. springs stop the rubbing or do I need to get a stiffer spring? Has any one had this problem and can you recomend any springs?

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Red 90 5.0, 17in Cobra Wheels, Saleen Wing, Cobra Ground Effects, K&N intake, Dual Flowmaster, Hurst Shifter

the only problem that i have had in rubbing was with tires being too wide. whenever i made turns or went over bumps, you could hear the back tires rub bad. i put smaller tires on the back, and the problem went away. i also have steeda lowering springs on my car. did you say that your car was lowered also?

I am not sure if it is lowered? I believe so. I bought it used and am not sure?

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Red 90 5.0, 17in Cobra Wheels, Saleen Wing, Cobra Ground Effects, K&N intake, Dual Flowmaster, Hurst Shifter

Try getting the adjustable lower control arms. You can raise or lower the rear of your car 2 inches. Might look kind of goofy raised high in the back, but you might not need much and they're a big improvement over stock ones.