Wheel to spring clearance

Here is the setup I had.

72 Demon
8 3/4 rear
large bolt pattern
Yukon axels (stock length)
green bearings
15x8 American Racing Outlaw 1
4 inch back spacing
M/T Sportsman ST 275-60-15 (At first I had M/T Sportsman Pro 255-60-15's, they fit better)
My tires did not rub on the outside or inside. However they did rub on the front wheel well area if I had 4 in the car and was getting on it.

Hope this helps.

Jack