I recall someone saying that the 275/60s will hit the fender wells. I think most people who went to 275s in the rear went with the 50s and they work/look fine. I will moving to these as well since I will go down to Whitby Motorcars next week to pick up a set of their nice faux-Halibrand wheels/covers.
2003 SCCA Gulf Coast Region AP Class Champion (Cobra)
Now driving a snowmobile on wheels