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They don’t call these “High Maintenance Money Wasting Vehicles” for no reason. Hey you can rip around in limp mode second gear if you want. TCM not needed for that.

Consensus here seems to be the TCMs are basically interchangeable over the years. They have different flashes based on GVW of the truck they are intended for. Pin out is the same. You said you could find TCMs in a junk yard, since there are no HMMWV junk yards, I assumed you meant commercial...

Welcome, Nobody that I am aware of has made a homemade adapter for the TCM. The TCM was only used in 1 year (I recall 1993) GM vehicles with 6.2 diesel and 4L80E, so finding this in a junkyard will be a challenge. Quite a few folks on here are parting out auction trucks, suggest you run a...