Dodge RAM 3500 DRW Regular Cab Tow Ratings Engine Trans Axle GCWR Reg Cab 4x2 Reg Cab 4x4 Curb Wt Tow Wt Curb Wt Tow Wt 5.7L HEMI A4 4.10 17,000 5,953 10,900 6,428 10,400 M5 4.10 17,000 5,991 10,850 6,460 10,400 Cummins Turbo Diesel A4 3.73 17,000 6,621 10,250 7,041 9,800 4.10 19,000 6,621 12,250 7,041 11,800 M5 3.73 18,000 6,599 11,250 7,064 10,80