Does anyone know if a 275/ 40 or 35 R17 will fit on the rear of an FC without rolling the quarter, with a factory sized strut/spring combo? The wheel offset I can mess with, but I'm unsure if I should just go with a 255 or if I can safely cram a 275 back there.
I'm worried about the clearance at lower control arm and the quarter panel lip.

Running 400+whp so the bigger the better would be nice.

Thanks in advance

 

Seen 17x10 +35 offset fit on a 275/40/R17 with just the fender lip rolled in. Any higher offset then that and you run the risk of the tire contacting the trailing arm. Depends on the brand /model of tire, some are more squarer/blocky then others.

 

The OP said he wanted a 275 with a factory size spring though.