First of all hello all, here's my problem:
We're having a hard time locating a 3 prong coolant temperature sending unit. It actually goes on a 72 Pontiac Lemans 350 the P.N. (off the unit) AC-95M-230B-265M. The car has only a light (no gauge) and every place we look only offers a one wire or a two wire sensor but the original unit that came out of this car has three male spade connectors comming out of the top. Also if it help it screws into the head not the intake.
Here is a picture if it helps: