i have that size ona set and i dont like the way the look.... they arent even withthe side of the wheel, and looks too stretched out IMO... im looking for some 275/35s that should put the side wal striaght up and down, not stretched in.
i have 245/35s on my 8" wheels and they are perfect straight up and down... a 255 might have a lil ballon effeect to them.
might give you local tire store a call and they can give ya the dimensions what each size tire is recomneded for what width wheel.... or sooner or later somebody will chime in on here and let ya know.