The beefy Ram 2500/3500 models benefit from an available 350-bhp 6.7L Cummins turbodiesel engine mated to a 6-speed automatic. A 345-bhp 5.7L HEMI(R) V-8 with a 6-speed manual (or optional 5-speed automatic) is the standard powertrain. The hydroformed frame is fully boxed for maximum stiffness. A choice of two 4WD transfer cases is available: manual or electric shift. Total payload is up to 5,110 lbs., while towing capacity is up to 16,250 lbs. Available features from the comprehensive options list include sunroof, leather bucket seats, navigation system, Infinity(R) audio system, UConnect hands-free communication system, Warn(R) 12,000 lbs. capacity hitch, limited-slip differential, and skid plates. ABS and EBD (Electronic Brake force Distribution) is standard.