I recently installed new tires Hankook Dynapro ATM on our 08 Envoy. The new tires are the same size, P245/65/17, as the OE Michelin Cross Terrains. The door label says 35lbs rear and 30 lbs front. The difference is the new tires state a max load of 2039lbs. AT 44psi. The OE is max load 2039lbs max pressure 35psi. I remember reading in another post that for P rated tires max load is achieved at 35psi. Is this correct even though my tires state max load @ 44psi? I currently have 35 in the rears and 32 in the fronts, but when summer gets here I will be towing a boat and want to be sure I am OK. If I do need to inflate the rears to 44psi to carry the load what should the fronts be at based on the door label? Thanks