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Old 10-14-2003, 09:54 AM
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Premature Tire Wear

I noticed that the passenger side front tire has the inside first couple of thread rows worn smooth. I looked at driver side expecting to see similar wear, but it does not show near as much wear It is a Mustang II on a 1938 Lafayette street rod. Tires have about 10,000 miles on them and I had them balanced and aligned when I purchased them. I will replace both front tires but I am not sure what to ask alignment shop to check for?? Any suggestions?....THANKS...DAVE

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Old 10-14-2003, 12:08 PM
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Excessive negative camber (tires leaned in at the top) will cause the tires to wear smooth on the inside.

-M
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Old 10-14-2003, 02:30 PM
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HEY MARV: Can you have it one one side and not the other?
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Old 10-14-2003, 02:59 PM
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Sure... Each side is/can be adjusted independently. If you did an alignment prior to the new tires and have access to the actual numbers, it could tell us a bit more information.

-M
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Old 10-14-2003, 03:39 PM
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mav's right. The fact that it is wearing one tire worse than the other usually implies a difference between left front camber and right front camber. If camber was dead even and just toe was out both tires would be worn fairly even. Your camber may only be a little negative but coupled with a little negative toe will really kill a tire. I would suggest getting the alignment re-checked and get a print of the specs.

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Old 10-15-2003, 08:52 AM
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I did find printout of alignment on 4-10-02 and it showed LEFT front camber .61 degrees, toe .05" RIGHT .22 degrees, toe .05 " and Cross Camber .40 degrees. I found spec's from Fatman who recommended 1/2 degree positive camber, 1 degree caster, 1/8 toe in. I have hit a lot of chuck holes but tires only lasted about 10,000 miles.. not too good....Dave
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Old 10-15-2003, 09:45 AM
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I would definitely get it checked/aligned again.

At roughly +1/2 degree camber left and +1/4 degree camber right, you would not be eating the inside of the tire.

Sounds like it has changed a bunch since then. If you have wear somewhere or have knocked it out, (potholes or curbs) it can impact all three angles. Have your local alignment shop do the works on it. They should check for worn components first. Don't cut any corners on steering and suspension components-if it needs replaced, get it done. At best, worn parts cause other parts to wear... (tires!) At worst, steering/driving stability can be lost and be really unsafe.

Make sure to get a copy of the printout so that you can see the before and after numbers. Helps to understand it if you see the numbers.

Hope this helps. Keep us posted on the fix.

-M
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Old 10-15-2003, 10:15 AM
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HEY MARV: Thanks for info With street rod you don't have to worry about spare time or spare money....because you don't have either one......DAVE
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