I dont think you'll need to crank the t-bars any. Your Montero should be able to handle that size of tire. But then again, I dont know with the 92 cause they didnt have the factory body lift

99JAOS2"& OME 2"body 4.90s ARB HS9500i Skids&Ladder 16"315BFG JAOSRemote& Rack 3Row Rad IPF back& Searchlite HID Overhead Console/CB switchPanel FrARB RrLocker TJMSnorkel 160AAlt Sliders 2nd Tranny Cooler QuickAirII& Tank Rear frame/tank Lift