Transmission Specifications on a 2006 Six-Speed Dodge Ram


The 2006 Dodge Ram featured the NV5600 six-speed manual transmission. The transmission, manufactured by New Venture Gear, was a standard feature in the Dodge Ram 5.9-liter turbo-diesel pickup truck. New Venture Gear, originally named New Process Gear, first produced the NV5600 transmission for Dodge Ram trucks in 1999.

Transmission Specifications

  • The 2006 Ram's NV5600 six-speed manual transmission used a synchronized-gear design. The transmission had the following gear ratios: 3.21 to 1 in first, 1.83 to 1 in second, 1.41 to 1 in third, 1 to 1 in fourth, 0.82 to 1 in fifth, 0.63 to 1 in sixth and 4.44 to 1 in reverse. The transmission had an overall top gear ratio of 2.72 to 1 with a 3.73-to-1 axle ratio, or 2.99 to 1 with a 4.1-to-1 axle ratio.

Ram Turbo Diesel and Transmission Weight Specifications

  • When paired with the 2006 Dodge Ram turbo-diesel engine, the NV5600 six-speed manual transmission had specific and recommended weight capacities. The turbo-diesel, six-cylinder engine with the standard NV5600 transmission had a gross vehicle weight rating of 9,000 lbs., a payload capacity of 1,960 lbs. and a base curb weight of 7,036 lbs. This combination had a gross curb weight rating of 20,000 lbs. and an estimated max trail rating of 12,800 lbs.

Ram V-8 Gasoline Engine and Transmission Weight Specifications

  • Dodge also offered the NV5600, six-speed manual transmission as an option for the 5.7-liter V-8 gasoline engine. This combination in the Dodge Ram achieved different weight capabilities and recommendations. The vehicle had a grand weight rating of 8,800 lbs., while the payload slightly increased over the turbo-diesel version to 2,540 lbs. It had a base curb weight of 6,262 lbs.,a gross curb weight rating of 15,000 lbs. and an estimated max trail of 8,600 lbs.

V-8 Engine Specifications

  • Dodge offered the 5.7-liter V-8 as the standard engine in its 1500 and 2500 Ram truck lines. This engine used a 90-degree, liquid-cooled design. It had a piston displacement of 5,654 cubic centimeters (cc), a bore of 3.92 inches, a stroke of 3.58 inches and a compression ratio of 9.6 to 1. It offered max power output of 345 horsepower at 5,400 revolutions per minute (rpm) and a peak torque output of 375 foot-lbs. at 4,200 rpm.

Turbo Diesel Engine Specifications

  • Dodge featured the six-cylinder, turbo-diesel engine as an option in its 2500 and 3500 Ram truck lines. The liquid-cooled in-line, six-cylinder engine featured a turbocharger with an intercooler. The pistons displaced 5,883 cc, and the engine had a bore of 4.02 inches, a stroke of 4.72 inches and a compression ratio of 17.2 to 1. It offered max power output of 325 foot-lbs. at 2,900 rpm and a peak torque capability of 610 foot-lbs. at 1,600 rpm.


  • Photo Credit pickup 4x4 car from above image by alma_sacra from
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