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Discussion Starter #1
Anyone ever upgrade their 2003 TCM to do tow/haul ?
Believe that tow/haul mode was available on the 04 model.
I pull a travel trailer with the 5.7 Hemi, would be nice to
cruise at 2000 RPM at 65 MPH in 4th gear.
 

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Discussion Starter #2
Anyone ever upgrade their 2003 TCM to do tow/haul ?
Believe that tow/haul mode was available on the 04 model.
I pull a travel trailer with the 5.7 Hemi, would be nice to
cruise at 2000 RPM at 65 MPH in 4th gear.
 

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40,856 Posts
Welcome aboard RL-10 - we're glad you joined us!

You might want to look at Superchips or Diablo programmers... might be an option for you
 

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Discussion Starter #4
If an 04 RAM 1500 TCM is plug compatible to the 03, would it be possible to swap the TCMs or could the Dodge Boys flash the old one?
 

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Greg
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The 05 is the better PCM if you are going to swap out the PCM. Weed has a 05 PCM and harness he has been trying to sell for some time. Look him up. I'm a bit out of the loop, but when I feel the need I just drop the OD. I relocated the button to the back of my steering wheel so it is very convenient to use. But sounds like you may benefit from a gear change to get the rpm range yo..u want. Good luck
 

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