Well, this has been a super journey.
I've been looking for a TPS mount for my truck forever. I have a later year 12v, so it is 96-98. Low and behold different years, different TPS bracketing even though everything else is the same.
The later years, use a mopar #4882856 / cummins #3931556, for a 2 piece bracket to hold the tps in place with mopar #04883979AA / cummins #3929866
Earlier years only used 1 part, Cummins #3925380
Now to find a TPS :)
Video of the backet installed on a later year 12v
https://www.youtube.com/watch?v=fqI5pSLEgME
I made my own with a round spacer and a piece of thin plate... also had to weld a bigger tab on the shaft for it to work reliably