CRD TCM

CRD05LIBERTY · **Joined:** Fri Jun 01, 2018 4:16 pm **Posts:** 20

Hi
Does anyone know if the TCM module is plug and play? Or does that need to be programmed? I am going to buy the transmission tune from GDE but I was going to buy a used one off of eBay and send it to GDE for them to flash.

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Jay ne Ohio · **Joined:** Sun Dec 12, 2010 5:49 pm **Posts:** 216

Pretty sure it is plug and play. A few years ago I pulled one out of one CRD and put it in another to see if the original was bad. It worked fine in both CRD's.

WWDiesel · **Posted:** Mon Oct 29, 2018 9:53 am

CRD05LIBERTY wrote:

Hi
Does anyone know if the TCM module is plug and play? Or does that need to be programmed? I am going to buy the transmission tune from GDE but I was going to buy a used one off of eBay and send it to GDE for them to flash.

They are not vehicle specific, only transmission type specific. Some have installed a TCM from a Dodge Truck. Changes shift points quite a bit but can be dangerous due to overreving engine when downshifting in certain situations. :shock:

flash7210 · **Posted:** Mon Oct 29, 2018 12:30 pm

Any TCM for a 545rfe can be used.
Not to be confused with the 45rfe which is physically the same transmission but programmed as a 4 speed (no 5th gear).
A TCM from a 05 or 06 CRD is preferred.

I’m using a TCM from a 05 Dodge Ram Hemi.
Shift points are slightly different and takes a little getting used to. Also requires more right foot management. But it will shift into 5th at 48mph if I allow it to.

I wish I could get more manual control of this transmission. Can’t do it without a standalone controller and more $$$$.

CRD05LIBERTY · **Joined:** Fri Jun 01, 2018 4:16 pm **Posts:** 20

Cool I’m ordering a CRD specific TCM

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CRD05LIBERTY · **Joined:** Fri Jun 01, 2018 4:16 pm **Posts:** 20

flash7210 wrote:

Any TCM for a 545rfe can be used.
Not to be confused with the 45rfe which is physically the same transmission but programmed as a 4 speed (no 5th gear).
A TCM from a 05 or 06 CRD is preferred.

I’m using a TCM from a 05 Dodge Ram Hemi.
Shift points are slightly different and takes a little getting used to. Also requires more right foot management. But it will shift into 5th at 48mph if I allow it to.

I wish I could get more manual control of this transmission. Can’t do it without a standalone controller and more $$$$.

How come you don’t do the GDE transmission tune?

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flash7210 · **Posted:** Mon Oct 29, 2018 6:29 pm

CRD05LIBERTY wrote:

flash7210 wrote:

Any TCM for a 545rfe can be used.
Not to be confused with the 45rfe which is physically the same transmission but programmed as a 4 speed (no 5th gear).
A TCM from a 05 or 06 CRD is preferred.

I’m using a TCM from a 05 Dodge Ram Hemi.
Shift points are slightly different and takes a little getting used to. Also requires more right foot management. But it will shift into 5th at 48mph if I allow it to.

I wish I could get more manual control of this transmission. Can’t do it without a standalone controller and more $$$$.

How come you don’t do the GDE transmission tune?

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I don’t feel I need it.

CRD05LIBERTY · **Joined:** Fri Jun 01, 2018 4:16 pm **Posts:** 20

Got me a used TCM to play with. GDE trans tune here I come

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CRD TCM

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