Holy new guys! Welcome... 285's will definitely not fit a 3rd gen with stock height, it'll rub everywhere just backing out of the driveway. Jaderunner runs that size in GY MTRr's, but he definitely has a lift. He may be able to tell you more though. hth...
99 uzj100, gx470
05 525EXC, 01 XT225, 07 TTR90, 07 CRF50