Hey guys, I have a question for you. First of all, am I seeing correctly that the stock size for an 04 TL is 235/45 R17?

When I bought my TL (used) it had 245's all the way around. I have a slash in one of my rear tires so I was just going to replace two of them. I would like to go back to the stock size (235's). Would it hurt to run 235's on the front and 245's on the rear temporarily? I know this is common in a lot of sports cars but I wanted to check to see if it would matter on the TL. The remaining tires still have some life left in them so I hate to replace all of them at once.

Thanks!

 

You wont have issues switching over to 235s as long as you maintain the same sidewall height

 

Actaully isn't it the overall diameter that needs to be the same?

If the diameter are not the same (with a small amount of variance allowed) the wheels will be turning at different speeds.

When you get wheels turning at different speeds, above a certain threshold, the Traction Control and/or VSA could kick in.

 

On a FWD car, you want the larger tires up front, since the front tires drive the car (this has to do with performance). Also, any new tires, whether you drive a FWD, RWD, or AWD, should always go in the rear (this has to do with safety).

 

Thanks for the help guys, ordering my tires now.