I would like to get a set of 31" Pro comp MT's
on black steel rockcrawlers
from 4WD Parts, they are having a sale with the ProComps. They only have 3-1/2 inch backspacing
and I heard that a 30 inch tire will rub on a stock 2000 x
especially if the rims offset is not as deep as stoch 5"
did anyone have problems installing 31 inch tires?

-Neil

If you do a search on this you will find a ton of info.
The short answer is you will have rubbing problems with that wheel unless you have a big lift. 31" tires fit with only miner trimming if you use stock rims or ones with the same backspacing.

-Chris