Unfortunately blew out a tire on the front left of my ‘08 IS250 AWD from hitting a pothole and my tires are currently as follows: BR 50% BL 60% FR 50%. I was thinking about opting for just getting 2 new to replace, but didn’t know if the difference in tread depth would severely hurt the drivetrain. Anyone have experience with this?

 

I would replace all 4 because driveline binding aside, you will get stuck in a rut of having to change the next 2 you kept while the newer tires will still ok.

50% of 9-10 32nds is pretty much worn out anyway.

 

Understandable. Worst part is, they only have about 17k miles on them and they are 45k rated