545rfe ?s
Here is one possibility you may want to check into.
http://www.powertraincontrolsolutions.com/transcontrol.php
This thread also covers the topic a little.
http://www.forabodiesonly.com/mopar/archive/index.php/t-91570.html
I think some years (03 and earlier?) also separated the trans controller from the engine controller. I just don't know what inputs the factory controller would need to make it work.
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