16" wheels

will 16" wheels fit on my '89 cabby without having to adjust suspension or alter the arches?

it had 17" wheels on when i first bought it and the back wheels would catch the arches when
i had passengers in the back or if i hit a speed bump too hard.

If 16" wheels will fit what is the maximum width i can have?

dan

they would fit mate if 17s fitted it, but still would depend on tyre size, and it may look like a giant roller skate if stance aint right