Unusual wear on inside wall of front tires - Mustang Evolution

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Old 07-21-2011, 11:40 AM   #1
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Unusual wear on inside wall of front tires

Today I had a blowout on my 01 GT. The passenger front tire. The inside wall was pretty torn up and the drivers side was doing the same thing. Any thoughts on what could be causing this?
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Old 07-21-2011, 11:41 AM   #2
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Quote:
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Today I had a blowout on my 01 GT. The passenger front tire. The inside wall was pretty torn up and the drivers side was doing the same thing. Any thoughts on what could be causing this?
Wrong balancing and alignment most likely
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Old 07-21-2011, 11:47 AM   #3
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Re: Unusual wear on inside wall of front tires

Is the car lowered?
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Old 07-21-2011, 12:00 PM   #4
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Yes it is lowered
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Old 07-21-2011, 12:01 PM   #5
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The car drives straight. Doesn't pull right or left
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Old 07-21-2011, 01:36 PM   #6
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Re: Unusual wear on inside wall of front tires

You have CC plates?
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Old 07-21-2011, 01:38 PM   #7
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You have CC plates?
No I do not
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Old 07-21-2011, 01:41 PM   #8
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Re: Unusual wear on inside wall of front tires

That could be it right there,lowering sometimes causes a butterfly effect on the wheels. With the wheels leaning in it will cause extra wear on the inside of the tires.
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Old 07-21-2011, 01:51 PM   #9
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Yes thats from lowering. Causes the control arm to change angle which translates to the wheel/tires having negative camber. You need CC plates and alignment
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Old 07-21-2011, 02:35 PM   #10
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I have not had this problem before though and my car has been lowered for a long timr
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Old 07-21-2011, 02:37 PM   #11
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Re: Unusual wear on inside wall of front tires

how much is it lowered? regardless its alignment related, get a shop to check it and see if they can get it to stock specs.
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Old 07-21-2011, 09:57 PM   #12
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Re: Unusual wear on inside wall of front tires

It's most likely due to the car being lowered. The tie rods are traveling at a different rate than your control arms causing bumpsteer. Your car already had some bumpsteer from the factory but it is exaggerated after a drop. Between that and the negative camber issue due to a lack of caster camber plates it was normal for the tires to wear unevenly and ultimately blow out.

Now I will say the alignment is only part of the battle. After I lowered my car I had it aligned with the CC plates. The alignment itself was correct, but the difference in rate regarding the tie rods and control arms were still causing my tires to wear unevenly. In addition to this my car would jolt in another direction when going over bumps or hitches in the road. It wasn't too bad at city speeds, but on the highway that can be dangerous.

So I'd suggest purchasing a bumpsteer kit and/or some offset rack bushings. These products along with another alignment will have your car back on spec and not blowing any more tires.
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Old 07-21-2011, 10:23 PM   #13
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Thanks so much for that info! Helps alot. I also need new shocks and struts. Any advice on replacing those with the car lowered? I know that if they don't get the proper range of motion they will wear out quickly. Can Anything be done to prevent this?
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Old 07-23-2011, 01:30 PM   #14
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Re: Unusual wear on inside wall of front tires

That's where the Caster Camber plates come in handy...you can stack the spacers accordingly on the strut nut to adjust for the lowered height.

I went with Tokico HP's along with H&R Super Sports (1.6-1.7" drop) and they worked out fine so far.
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Old 07-23-2011, 02:45 PM   #15
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Quote:
Originally Posted by sonicpony03
That's where the Caster Camber plates come in handy...you can stack the spacers accordingly on the strut nut to adjust for the lowered height.

I went with Tokico HP's along with H&R Super Sports (1.6-1.7" drop) and they worked out fine so far.
+1 I have to do this! I Just got my car on the lift and it almost looks like a slit in the tire that's perfectly circular, how much are caster camber plates?
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Old 07-23-2011, 03:44 PM   #16
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Re: Unusual wear on inside wall of front tires

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+1 I have to do this! I Just got my car on the lift and it almost looks like a slit in the tire that's perfectly circular, how much are caster camber plates?
Depends on which brand/style you get. They range from $160-$200+.

I went with Maximum Motorsports 4 bolt Plates...they are the best. I'd opt for the 4 bolt over the 3 bolt. I paid less than usual because I went thru John at NQS Performance (site sponsor), he gave me a great deal on them.
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Old 07-23-2011, 11:05 PM   #17
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Quote:
Originally Posted by sonicpony03

Depends on which brand/style you get. They range from $160-$200+.

I went with Maximum Motorsports 4 bolt Plates...they are the best. I'd opt for the 4 bolt over the 3 bolt. I paid less than usual because I went thru John at NQS Performance (site sponsor), he gave me a great deal on them.
I get parts at price if cost, are they visible?
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Old 07-24-2011, 07:58 PM   #18
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Re: Unusual wear on inside wall of front tires

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Originally Posted by nickysixx View Post
I get parts at price if cost, are they visible?
?


I'm going to guess here and say that you can get the parts at cost...I'd send John at NQS a PM and see what he can do...compare his prices with yours.
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Old 07-24-2011, 10:15 PM   #19
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Quote:
Originally Posted by sonicpony03

?

I'm going to guess here and say that you can get the parts at cost...I'd send John at NQS a PM and see what he can do...compare his prices with yours.
Sweet deal, I messaged him. My dad manages a napa and used to own one so I'll compare and contrast between the two.
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