I have a 2002 Cummins with the HO & 6spd manual and a 13 longhorn 1500. While both are rated to TOW . . . you have to look at the carrying capacity. The 1500's are ONLY going to be around 1300lb. Put a 700lb tongue weight and then yourself in truck, and then anyone else, stuff in the box, etc, you can see where you quickly are BEYOND the carrying capacity (according to Ma Mopar) of the 1500. However, check rating on your Cummins - it will tow the trailer, as well as you and your stuff. Sure the Longhorn I have tow my travel trailer fine, but the Cummins does it "with ease" compared to hearing the Hemi and the 8spd Auto shifting . . . must say, would rather tow with a Cummins, and 3/4 ton !!! Don't be fooled by "how much you can tow", you have to look at ALL the ratings !!! It's all the manufacturer's doing it . . .