255/85/r16=33x10.50
285/75/r15=33x11.50xr16
I think i got those right. the 285/75s are a little more common (some furds used the metric pattern, you probably know that)
There was also some 315/75/r16 or something with 315 that was a 33 but 12.50 i think. i may be wrong.