can I run 31X10.5's on a 2002 taco TRD without a lift and not get any rubbing? How much larger are the 31's than the 265/75r16

 

Actual sizes depend on manufacturer. Super Swamper's idea of a 33" tire is very different from Procomp's. But for general conversation... a 31x10.5-15 is about 30.75" tall and 10.5" wide. A 267/75-16 will be just a hair under 32" tall and 10" wide. When you are thinking about fitting tires, rubbing, etc., you have to think about both height and width.