315's on a 2500 with level.

[Stangshcky12]

That might be true, when you level the track bar pulls the axle to the side a bit so it may pull the control arm out some

 

[4X HEMI]

Many years ago I ran the 315's on stock rims on a 1500 and had no problems with rubbing at all. All I did was crank the torsion bars to level the front of mine.