Chrysler 45RFE transmission
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The 45RFE is an automatic transmission from Chrysler. 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. In the 45RFE applications four gears are utilized, with a different (1.50:1 rather than 1.67:1) second gear to increase versatility when downshifting. In 545RFE usage, an extra taller overdrive ratio is also used. Chrysler decided to refer to it as a "multi-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
- 545RFE
- 2001–2004 Jeep Grand Cherokee
- 2001– Dodge Ram HD
- 2003– Dodge Dakota
- 2003- Dodge Durango
- 2009- Dodge Ram
[edit] References
- Marcy, Thomas. "Smart & savvy". Motor (June 2000).
http://hotrodlane.cc/New%20HEMI%20Tech/2004%2057%20hemi%20trans.pdf
