New Venture NV5600 Transmission Specs & Ratios

NV5600 Transmission Specs & Ratios

The New Venture NV5600 was standard behind the High Output (H.O.) version of the 5.9L Cummins Turbodiesel. While it features a favorable gear spread and strength characteristics, the transmission did not gain the same popularity that the lighter, smooth shifting NV4500 attracted. In 2001, the NV5600 received an upgraded clutch, input shaft, and improved synchronizer design. These modifications were in response to many issues and complaints from owners, particularly performance and reliability concerns while towing.

NV5600 Transmission Ratios

1st	2nd	3rd	4th	5th	6th	R
5.63 : 1	3.38 : 1	2.04 : 1	1.39 : 1	1.00 : 1	0.73 : 1	5.63 : 1

NV5600 Transmission Specs

Transmission	New Venture NV-5600
Type	6 speed manual transmission
Manufacturer	New Venture Gear
Model Years/Applications	1999 - 2005 MY Ram 2500/3500 with H.O. 5.9L Cummins Turbodiesel
Synchronized	All forward gears & reverse
Case Material	Cast iron case, aluminum bellhousing
Max Input Torque	550 lb-ft (a 650 lb-ft variant was produced, but never used in Ram pickup applications)
Weight	~ 360 lbs
Oil Capacity	9.5 pints/4.75 quarts (10 pints/5 quarts with optional filter)
Fluid Type/Spec	MOPAR manual transmission fluid, MOPAR part number 4874464
Service Intervals	Dodge owner manuals claim transmission does not require periodic maintenance, however regular fluid changes may promote longevity.

NV5600 vs G56 transmission shift patterns — Both the NV5600 and G56 manual transmissions were available
during the 2005 model year - transmissions can be differentiated by their shift pattern