I've welded in bungs into tranny pans as well as tap aluminum tranny pan bosses for the temp. senders.
I saw a post on the CTD site years ago about installing the sender in the front servo (there is a NPT plug at the top to use for pressure readings, install it (electrical senders) in that hole scope up) on the early (1998) automatic O.D. tranny in the CTD trucks, I switch mine after that and saw no differences in the readings shock
That's where I install mine now up
My thinking is you want to know the temps of the fluids circulating through the tranny, not going or returning from the cooler work

Last edited by Cab_Burge; 05/26/20 08:27 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)