Question about 1991 Nissan 300ZX

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Different tire sizes...

Hey i've just put on two 245/45/17's on the rear of my '91 skyline gtr. previously i had 245/40/17, two of which still remain on the fronts. Now im wondering, can i hurt anything here by having 2 different sized tires? I don't want to cause damage to the active AWD system or differentials.

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I've always heard that it is ok to put different size tires on the front and back as long as the vehichle is not AWD.  The two different size tires turn at different rates and can cause problems for you.  I would probably change the other two.

Posted on May 17, 2009

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if you have to put a odd ball tire on put it on the rear

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