Heavy Duty Chassis Cabs
Chassis Cab versions were made for the Ram 3500, 4500, and 5500 models. The 3500 Heavy Duty model was unveiled at the 2009 Chicago Auto Show.
Engine choices include 5.7L HEMI V-8 rated 383 bhp (286 kW)@5600 rpm and 542 N·m (400 lb·ft)@4000 rpm for Ram 3500, 6.7L Cummins turbo diesel rated 350 bhp (260 kW)@3013 rpm and 880 N·m (650 lb·ft)@1500 rpm for Ram 3500 (optional), 4500, 5500.
Transmission choices include a standard 6-speed manual or optional 6-speed Aisin automatic. Both transmissions support the Power Take Off option.
Each model has regular or crew cab, single-rear-wheel or dual-rear-wheel (3500 and up only), 4 cab-axle lengths (60, 84, 108 and 120 inches) for 4500/5500 or 2 cab-axle lengths (60 and 84 inches) for 3500, and three trim levels (ST, SLT and Laramie).
The Ram 3500 includes 2 axles with 3 axle ratios (3.42, 3.73 and 4.10) and 17-inch wheels, while Ram 4500/5500 have 1 axle with 3 axle ratios (4.10, 4.44 and 4.88) and 19.5-inch wheels. The 4500/5500 Rams rear axle is a Dana S 110. The front axle on 4x4 models is manufactured by Magna, while 2 wheel drives models just have a solid, non-drive axle.
ProductionThe Ram 2500 and 3500 are built in Chrysler's Saltillo Assembly Plant in Coahuila, Mexico, and the Ram 1500 is built at the Warren Truck Assembly Plant in Warren, Michigan. The Ram 1500 was also assembled at the Saint Louis Assembly plant in Fenton, Missouri before the plant was permanently closed in July 2009
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