The 17 450 is only 9,500# ? That does not seem correct. Nor does the 14,500# GVWR rating on the 450, that puts it into the commercial territory. I thought all newer 350,450 and 3500's were ALL rated at 14K to keep them in the class 3 for licensing and insurance purposes?
My 15 3500 RAM has 6k front, 9,750# rear and 14k GVWR.