I currently have 235/60/15s all around my car. I need 4 new tires, and am curious about putting slightly taller (not wider) tires in the back. I have stock Buick 15" rallyes. What's the tallest tire I can use in the back? No "professional" I talk to seems to know. Some even can't beleive I have no problems with the 235/60/15s I have now.
I have run 275 60 x 15 on the back of two different 70s with no issues. One was a convt (still there) and one a GSX. On another 70 we run 245s all the way around with no issues. When the Board first started there were posts that some have run 255s on the front with no issues, but I would think all the supension components need to be in good condition to do that. These were all TAs.
