I have a 2008 Quad 2500HD with the CTD. I added SuperSprings for better stability with my 2000# slide-in truck camper (TC). I have looked at the new 2010 Ram 3500HD. It has a much higher load capacity (5500#) vs the 2500 (~3000#). My concern is with the GVCW on the 2500, which is 9000#. The 3500 is much higher. Since I added 5000# rated SuperSprings to the 2500, should I be concerned with the total weight of truck and TC, which currently is right at the 9000# limit? If the answer is yes, should I upgrade to the 2010 3500?