Alvares. I've been asking the same questions as I am thinking of putting 315's on miine. So far I beleive that they will not rub if you have a short bed and maybe rub slightly if you have a long bed (Something about a . 7" difference in the front end). I have a 4. 10 rear end so I really would like to have bigger tires on my rig. Towing is a question as I tow 8,000lbs at least 60% of my weekends. Hope this helps--others will give you better info.
David.
David.