[quote=“somedude,post:3,topic:28367"”]
you think having 1 new tire and 3 old ones is going to wreck your AWD? your wrong. install the new tire and run it.
[/quote]
He’s worried about strain on the diff as the tires will be going different speeds.
If it was strictly for track use there is no way, no how a difference in tread depth would be more detrimental than actually turning the car. The difference between the inside/outside wheels would be…
Prolonged highway use on the otherhand.