Can I run 17x8 rims with 245/45/17 without any fitment problems? One of the tires on the rims I might get is pretty well worn from burnouts on a V6 Stang. The other tires have about 70% tread left. I might think about downgrading to 235/45/17 Khumo's if the tires on there don't fit. I know this has probably been asked many times, but I can't find anything with the search function. Thanks for any advice.

 

From what I've seen on this forum those will work. It's the 245 18's that you might have some fitment/rubbing issues.

 

Yes you can run 245s with 17x8's and the search funtion will tell you that as a general rule if you are upgrading from stock 16s you get 235/45/17s and if you are upgrading the stock 17s you get 245/45/17s, this it to keep your spedometer straight, both sizes fit perfectly on 17x8 wheels. also if you get 245/45/17s as a replacement for stock 16s your speedometer will be off by 1.7% which you will never (99% of the time) notice.
The uneven wear on the tires will cause uneven handling, this is why it's important to rotate tires.