The Chrysler Group announced last week that the 2006 Dodge Ram Mega Cab will get a dual-rear-wheel model. Featuring dual rear wheels that expand the rear-wheel track to six feet, four inches, the 2006 Dodge Ram Mega Cab Dually provides more payload capacity and enhanced trailer-towing stability, according to Dodge. The Mega Cab Dually model comes standard with 610 lb.-ft. of torque, from its 5.9-liter Cummins Turbo Diesel engine. The Ram Mega Cab Dually is available as a 3500 series with a six-foot, three-inch box. It can be configured with 4x2 or 4x4 drivetrains, in SLT or Laramie trim, and comes standard with a six-speed manual or optional automatic transmission. An electric-shift transfer case is standard on four-wheel-drive models, and a limited-slip differential is optional. The new dual-rear-wheel model boosts the Dually's Gross Vehicle Weight Rating (GVWR) to 10,500 lbs., payload capacity to 3,240 lbs., and rear Gross Axle Weight Rating (GAWR) to 9,350 lbs. The Gross Combined Vehicle Weight Rating (GCWR) of 23,000 lbs. and maximum trailer weight of 15,600 lbs. place the Dodge Ram Mega Cab Dually among the top of its class. Options include a Class IV hitch receiver with a seven-circuit wiring harness, 750-amp battery, heavy-duty engine cooling and an auxiliary transmission oil cooler. A "Tow/Haul" mode, as well as "Overdrive Off," help reduce gear searching when climbing hills. These systems will also select a lower gear in downhill conditions in order to utilize the engine's breaking capability. Customizable trailer-tow mirrors provide two views on both sides: close-up and wide-out. In addition, mirrors flip up 90 degrees for viewing beyond wide trailers.