rear tires hitting wheel wells
04-21-2014, 11:47 AM
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rear tires hitting wheel wells
I have a 2003 VERT with F55 Magnetic suspension. I have just 17,000 miles on the car and it is a nice weather, weekend cruiser. I decided the finally change the tires from the original run flats that were still on the car to non-run flats of the same size F 245/45 17 R 275/40 18.
I don't drive the car that much, but a few weeks later (maybe 2 weeks later) I noticed that when I hit a good bump, the rear tires were scraping inside the rear wheel wells. WTF! I assumed it had something to do with the new tires. I know the rear of the car can be raised up by tighting the end nuts on the monospring, so I did that and raised the backend of the car up about one inch which seems to have stopped the problem. But I can't see how changing the tires to the same size would cause this problem and maybe something else is going on. Has anybody had a similar experience when going from run flats to non run flats?
I don't drive the car that much, but a few weeks later (maybe 2 weeks later) I noticed that when I hit a good bump, the rear tires were scraping inside the rear wheel wells. WTF! I assumed it had something to do with the new tires. I know the rear of the car can be raised up by tighting the end nuts on the monospring, so I did that and raised the backend of the car up about one inch which seems to have stopped the problem. But I can't see how changing the tires to the same size would cause this problem and maybe something else is going on. Has anybody had a similar experience when going from run flats to non run flats?
04-21-2014, 02:38 PM
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Melting Slicks
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I ran a 325/30 on mine and hit the inner fenders, now since removed. So factory size tires shouldn't be an issue unless like mentioned you are running improper offset aftermarket wheels. Or possibly your shocks are compression too much due to fatigue. Lifting the vehicles ride height would help alleviate the issue but not the cause if that's the case.
04-22-2014, 01:15 AM
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everything if factory stock, rims, wheel wells, etc (except the outside body). I'm wondering if I have a failing rear Monospring or failing shocks. Whole thing makes no sense to me.
04-22-2014, 08:59 PM
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Melting Slicks
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St. Jude Donor '15
Seeing as you have raised the car up you will need to have the car aligned so as not to ruin your new tires
Also different tires, even though same section width the 275 number, will have different tread widths. The 275 is from sidewall to sidewall of the tires. Manufacturers will vary the tread ratio from 80 to 95 percent of the section width
Also different tires, even though same section width the 275 number, will have different tread widths. The 275 is from sidewall to sidewall of the tires. Manufacturers will vary the tread ratio from 80 to 95 percent of the section width
Last edited by mrr23; 04-22-2014 at 09:01 PM.