2001 Dodge Ram Transmission Information

by Rob Wagner

The 2001 Dodge Ram pickup truck featured three transmissions: two versions of the four-speed automatic and the six-speed manual gearbox. The 42RH and 46RH automatics offered similar features. The NV5600 manual was used for heavy-duty work.


The four-speed automatic was produced by the Chrysler Corp. from 1994 to 2001, and the six-speed manual gearbox was produced for 1999-2001 Dodge Rams, according to Allpar.com and Dodgeram.com.

42RH Gear Ratio

The gear ratios for the 42RH are: 2.74:1 for first gear; 1.54:1 for second; 1.00:1 for third; and 0.69:1 for fourth gear.

46RH Gear Ratio

The 47RH gear ratios are: 2.45:1 for first gear; 1.45:1 for second; 1.00:1 for third; and 0.69:1 for fourth gear.

Manual Gear Ratio

The six-speed manual gear ratios are: 5.63:1 for first gear; 3.38:1 for second; 2.04:1 for third; 1.39:1 for fourth; 1.00:1 for fifth; and 0.073:1 for sixth gear.

Automatic Differences

A different version of the 47RH automatic, the 47RE, featured an electronically controlled governor instead of the 47RH's standard hydraulic-controlled governor.


The four-speed automatics were standard equipment on Dodge Rams with V-6 and V-8 engines. The six-speed manuals could be ordered for 5.9-liter Cummins diesel and 8-liter V-10s.

About the Author

Rob Wagner is a journalist with over 35 years experience reporting and editing for newspapers and magazines. His experience ranges from legal affairs reporting to covering the Middle East. He served stints as a newspaper and magazine editor in Saudi Arabia and the United Arab Emirates. Wagner attended California State University, Los Angeles, and has a degree in journalism.

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Photo Credits

  • photo_camera red truck engine image by Christopher Nolan from Fotolia.com