All weights are in pounds Dodge RAM 2500 Regular Cab Tow Ratings Engine Trans Axle GCWR 4x2 Long Bed 4x4 Long Bed Curb Wt Tow Wt Curb Wt Tow Wt 5.7L HEMI A4 3.73 15,000 5,413 9,450 5,849 9,000 4.10 17,000 5,413 11,450 5,849 11,000 M5 3.73 15,000 5,432 9,400 5,881 8,950 4.10 17,000 5,432 11,400 5,881 10,950 Cummins Turbo Diesel A4 3.73 17,000 6,253