Here is exactly what you're talking about. 01 Super Crew 4x4 no lift with 315/70/17s on stock wheels with just the torsion bars turned up a little. I had no problem with clearance at all. As a matter of fact I just ordered a set of Helo Maxx 6 in BLack 17x9 and with just a little trimming up front they fit just fine. Helo even told me they wouldn't fit on anything less than a 3" lift with the 35s......
Personally I think it fills out the wheel well quite nicely, not to mention that if I lifted the truck even 3" it wouldn't fit in my garage....