Im talking about the surface that will be connected to the actual 'wheel' of the truck. on the montero the surface of the wheel is completely flat. SO when you attach a rim to that flat surface, must the part of the rim that will be 'connected' to the wheel be flat as well. The surface around the lug openings on the back of the rim. I had a set of chevy rallys where the surface had a slight rim to it so it didnt sit flush on the actual wheel. My toy landcruiser rims i have now has a completeley flat surface as do the montero stockers.

'84 Monty SWB, 2.6 Manual, rear LSD, bOuNcY, cranked T Bars, 33x12.5 M/T's