Your best bet would be to take measurements to see what you've got to work with. I think the first obstacle will be the tie-rod/steering knuckle end which (from memory) will be in the neighborhood of 5.5" - so 4.5" and less to be safe.
When I take the measurement from the hub to the inner fender well is there a standard contact point to measure from? It is hard to tell where to land the tape measure.
