Quote:
Originally Posted by backpacker3
No if he replaces one tire he'll get torque bind also you'll want to make sure that you get the same tread pattern if he replaces only one and you'll have to have it shaved to match the other tires. The problem is that with an awd system is that it's looking for wheels slip so if one tire is bigger even slightly it has a different rotation speed that the awd system is constantly trying to compensate for and will toast the trans and front diff. The price of a trans and diff replacement vs 4 new tires it's a pretty simple decision.
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Are you saying Subies AWD is just like driving around in a 4WD with the transfer case and differential(s) locked up???
The front wheels travel farther than the rears; even if all four tires were perfectly 100% diameter matched, this would be true and the front/rear power split needs to accommodate it.