Chrysler 45RFE transmission
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The 45RFE is an automatic transmission from DaimlerChrysler. The name refers to its Rear wheel drive design and Full Electronic control system.
Introduced in the Jeep Grand Cherokee in 1999, it is notable for including 3 planetary gearsets rather than the two normally used in a 4-speed automatic. This gives it six theoretical speeds, and it would have been the first six-speed transmission ever produced in volume, but it is programmed to only use five of these ratios. Four are used for upshifts, with a different (1.50:1 rather than 1.67:1) second gear for downshifts. Although five of the six ratios are used, Chrysler decided to call it a "4-speed automatic".
The 45RFE is produced at the Indiana Transmission plant in Kokomo, Indiana. It is normally paired with the 4.7 L PowerTech V8.
The 45RFE later became the 5-speed 545RFE.
- Gear Ratios:
- 1st 3.00:1
- 2nd 1.67:1
- 2nd Prime 1.50:1
- 3rd 1.00:1
- 4th 0.75:1
- Reverse 3.00:1
- 545RFE only:
- 5th 0.67:1
Applications:
- 45RFE
- 1999–2000 Jeep Grand Cherokee
- 2000-2002 Dodge Dakota
- 2000-2002 Dodge Durango
- 2001– Dodge Ram 1500
- 2002–2003 Jeep Liberty
- 545RFE
- 2001–2004 Jeep Grand Cherokee
- 2001– Dodge Ram HD
- 2003– Dodge Dakota
- 2005-2006 Jeep Liberty CRD
[edit] References
- Marcy, Thomas. "Smart & savvy". Motor (June 2000).
