On my 2006 RAM Mega CTD I ran several sets of Cooper ATP's. Very good tire, long lasting, quiet, xlnt highway ride, good for desert (never ran in snow) and wet pavement. I could get about 48-50K miles a set on them. -Americas Tire-
My 2015 RAM Mega CTD came with a new set Pathfinder Sport A/T's. They are a generic "Americas Tire" brand manufactured by Kumho and closely resemble the Kumho Road Venture SAT tire. These tires blow away the Coopers on the highway for quiet, handling, etc. Was in desert sand with them a couple weeks ago and they did xlnt. 25% cheaper than the Coopers. I only have 8000 miles on them but they look like they are wearing nice/normal.