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Old 06-20-2008, 05:40 PM   #1
GlenCastleberry
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Default Bad idea to mount 2 new tires w/ 2 old ones?

I have a MY02 WRX. Two of my Falken Azenis rt-615's, in 225x45x17, are worn down because of improper alignment. The remaining 2 have approx. 50% tread remaining.

I know there are some dangers with running different treads, or different sized wheels on AWD systems because of extra stress on the center diff. Here's where my question comes in:
Would it be a bad idea to order two new rt-615's and run them with the old two which have 50% tread remaining?

Thanks in advance

-Glen
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Old 06-20-2008, 06:50 PM   #2
nayr924
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read your owners manual
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Old 06-20-2008, 07:09 PM   #3
GlenCastleberry
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Thanks for that quality response, Nayr. A simple yes or no would have been more helpful.
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Old 06-20-2008, 07:23 PM   #4
subaru3169
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have you considered rotating and riding it out til there's no more?? if you could, ride it out and get a new set later
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Old 06-20-2008, 10:36 PM   #5
spelk3
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Quote:
Originally Posted by GlenCastleberry View Post
Would it be a bad idea to order two new rt-615's and run them with the old two which have 50% tread remaining?
Yes. Bad idea.
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Old 06-20-2008, 10:36 PM   #6
spelk3
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oops, duplicate post.
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Old 06-20-2008, 10:52 PM   #7
ritky
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I believe the manual recommends no more than 2/32" difference in tread depth. Tires are usually around 11/32" when new.

Seems like you probably already know the answer to your own question based on your post. If not...yes it's a bad idea.
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Old 06-21-2008, 01:41 AM   #8
snovvbrdr
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Quote:
Originally Posted by ritky View Post
I believe the manual recommends no more than 2/32" difference in tread depth. Tires are usually around 11/32" when new.

Seems like you probably already know the answer to your own question based on your post. If not...yes it's a bad idea.
the 615 comes with 8/32's brand new (helps reduce squirm)
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