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Interchangeable 545RFE transmissions for '05 1500

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Interchangeable 545RFE transmissions for '05 1500

  #1  
Old 01-06-2019, 03:31 PM
Johnny thorn
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Default Interchangeable 545RFE transmissions for '05 1500

I got a lot of hours behind me on Google by now to try to resolve this timeless question and not surprisingly, I can't find a definitive answer.
Can I swap my bad the 545RFE tranny in my 05 1500 4x4 5.7 with a 545RFE tranny from a '03 Durango 4x4 with a 4.7?
Using a couple of notable resources, I am getting a conflicting answer.
1) Rockauto says "yes", using the same tranny part number that is used in several vehicles including the two that are in this equation.
2) A Dodge tech from a website says "no", only from a 04 or 05 with the same engine, which corroborates with what the upullandpay website says for interchangeable vehicles.
Does anyone know the correct answer?

And to complicate the question, I have found plenty of information that suggests I can even use 45RFE (which I have found from a 02 Dakota 4x2) and that the only physical difference is the 545RFE utilizes an unused "4th" gear used for kickdown only in the 45RFE, and the final overdrive gear ratio is a little lower in the 545RFE.

It would be a dream to resolve these questions apparently considered esoteric knowledge.
Thanks in advance!
 

Last edited by Johnny thorn; 01-06-2019 at 03:42 PM. Reason: grammer
  #2  
Old 01-08-2019, 07:16 AM
Johnny thorn
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Still unresolved
 
  #3  
Old 01-10-2019, 01:01 PM
MoparFanatic21
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My gut says yes, as they are the same transmission. They operate exactly the same. There is literally no difference between the two transmissions. None. So yes they can be
 

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