45RFE upgrade to 545RFE for 01 Durango
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From: Omaha
45RFE upgrade to 545RFE for 01 Durango
I've read a number of threads on this and have a question on upgrading or updating the TCM. Can I do an update my TCM to add the 5th gear or do I need to get a different TCM with the updated software info... from a Grand Cherokee for example? I have an additional TCM I purchased from a parted out 01 rango that I could update and install...What's the easiest way to upgrade it? I just installed a master kit in my 45RFE so it's like new again. I don't want to mess it up! 😁
Last edited by Ma6tk8sh1tek; May 2, 2016 at 01:43 PM. Reason: Context
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To upgrade my Durango's 45RFE into a 545RFE, I installed a 56044574AC TCM out of a 2003-2004 Jeep Grand Cherokee into my Durango. After performing the recommended quick-learn procedure, my Durango's transmission operates flawlessly.