Hello Hello all,

I've been trying to do my research on the 2 transmissions and just wanted to make sure I understand the difference. Mainly the 110ft/lb torque difference and that the 55E is for the 4.0l (which can be used in the 2.3l as well). So if I have the 2.3l, it's safe to assume I could go with either one if I was replacing my current trans. Thanks!

2010 XL
2.3L
4x2
Automatic Transmission

 

Welcome to the forum

Yes, the 55E has a slightly larger OD drum and extra bolt hole on bell house for 4.0l's higher torque

The bell housings are of course specific to the engine so all the 5R55Es will only have 4.0l bell housings
The 5R44Es can have either the 3.0l Vulcan bell housing or the 2.3l Duratec bell housing

Bell housings are not easy to swap since the back side of bell housing is the front side of the main pump inside the transmission
Google: 4R44E Pump Alignment Without Special Tool

Short video on whats behind the bell housing, 4R and 5R are the same transmissions, the "5th gear" is actually IN the computer, not the transmission, lol

But the bell housings are interchangeable as far as the transmission side goes
And all the wiring is the same for 2001-2011 5R models

And of course 2WD or 4x4 transmissions are different, no conversion possible without full disassembly to change the main shaft

 

Ron,

Thank you for the detailed responses not just to this thread but countless others. The information you have provided is fantastic and has helped me get a better understand of my new (to me) Ranger. Thanks again.