Hi guys. I have use of a 2009 Chev 3500 DRW. I am going to use it for pulling the bumper pull trailer to the mountains this winter. I would like to put winter tires on it, and would like it even more if I could get away with only buying 4 tires and wheels. Also my understanding is that deep snow traction is better with singles than duals. So can this be done? Do I buy regular offset rears and dished DRW-style fronts?