Detailed item info Model OverviewAvailable in three-quarter-ton (designated 2500) and one-ton (3500) models. the heavy duty variants of the 2009 Dodge Ram are equipped for serious work-oriented towing and hauling needs. Standard on all 2500 trims is a 5. 7L V8 Hemi engine with 383 horsepower and 400 pound-feet of torque. which is mated to a 5-speed automatic transmission. Standard on the 3500 trims is a 6. 7L Cummins turbo-diesel inline 6-cylinder engine with 350 horsepower and 650 pound-feet of low-rev torque--ideal for towing the heaviest loads--which is mated to a 6-speed manual or 6-speed automatic transmission. The Cummins turbo-diesel engine incorporates a number of technologies to improve fuel efficiency and emissions. including a cooled exhaust gas recirculation (EGR) system. a variable-geometry turbocharger. self-cleaning particulate filter. and oxidation catalyst. The engine is available as an option on all 2500 trims. These heavy duty trucks come with rear-wheel drive or with two 4-wheel drive transfer cases. Two-wheel drive Rams for 2009 again have an independent. double-wishbone front suspension. while 4-wheel-drive models get a rigid-beam front axle. In back. there's a heavy-duty solid axle. along with a Hotchkiss design that includes leaf springs for stability during heavy-hauling. The 2500 and 3500 trims come in single (regular) cab. Quad Cab. or Mega Cab styles. with short (6. 3 ft) and long box (8. 2 ft) variants. The Quad Cab's back doors have roll-down windows and open 85 degrees to the optional 60/40-split folding rear seats. The Mega Cab model is geared toward rear-seat comfort. offering as much space in back as large SUVs. The Mega Cab's rear seats recline. fold down. and slide forward for flexibility. The top-line Laramie trim is available for both the 2500 and 3500. The 3500 models come with dual rear wheels for increased stability while carrying heavy loads. and have a fully boxed. hydro-formed frame for superior load-bearing. Standard features for the 2500 include keyless entry. daytime running headlights. full-size spare tire and AM/FM/CD stereo. Front and side airbags come standard on the Ram 3500. as do anti-lock 4-wheel disc brakes. Major options include side supplemental air bags. leather-trimmed bucket seats. navigation system. power-adjustable pedals. rear-seat DVD entertainment system (Quad Cab). a power-sliding rear window and the UConnect hands-free communication interface. Available exterior colors include variations of red. blue. gray. brown. black and white.