I ran 255 85 Bighorns on 7x16 and currently have 32 11.5 15 (292mm wide) Bighorns on 7x15 and have never had a problem.

The old 300tdi 110 was stock height and never rubbed with the 255s...

About to swap these out for MT Baja Claws TTC in 35 12.5 15 on 15x8