Anyone here actually using 315/70r17s on a stock 150 offroad?

I am talking about rocky conditions that actually use the full range of the suspension.

 

I have 305/70/17's on mine....I'd say it'd be tricky to say the least. Had to raise the torsion bars a tad on the front. I towed a trailer w/ 4wheeler on it this weekend across some bumpy conditions and the rears actually rubbed a bit. It's tight....I'd say if you were going to do some "full range" stuff....then either get a lift, or 285's.