ok heres my problem i put my cummins in my 1991 v3500 it had a 350 4l80e/205 (old body style) i want to keep the 4l80e. i want to take the tcu from the 6.2 k3500 and use it but i dont know how to wire it up. i also have the alternator set up to give me the ground signal for a tach and a dakota digital box for calibrations of the tach.

i know sometimes what i write is confusing but heres another post i made about it.
91 v3500 crew

in the mean time im going to be searching the web and here to try to find the answer

 

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