help with wheel ofset

Hey sorry for the delay,

I tried the 275-60-15 on those 15x8 rims and they mostly fit okay with some scraping on the larger bumps, however I would have to roll the fender quite a bit so I decided against it.

In the end I went with 255-60-15's which look way better on the new 15x8's and they fit with plenty of room to avoid ALL scraping! They fit the wheel wheel about perfect and really fill it up. Im happy now.