will i break it if ....

[jdmellor28]

Will i break my 93 turbo 5 speed legacy if .... i have 2 used tires on the front and 2 new tires on the rear ?
They will be the same size !!! but tread will be diffrent levels of wear .
as far as i know my car does not have rear LSD .

please tell me if its gona blow ! i would like to get this sorted out soon !

[PhyrraM]

You will be fine. A small amount of differentiation is designed for by the factory.

[Legacy777]

Measure the circumference difference between all tires. Factory specs say there should not be more than 1/4" difference between all tires. A little more probably wouldn't hurt, but I wouldn't push things too much.

Use a string, roll over it, and then wrap it around the tire. Just mark where the two ends meet, remove the string and then measure the markings. Repeat for all remaining tires and compare your readings.