Hello, I'm attempting to install temp and oil pressure gauges in my '76 brougham. The coolant sensor i believe i have found under the distributor and AC compressor,some bolts around the compressor had to be removed so the comp could be moved aside and the radiator has had to be drained so a radiator hose could be removed, all of this just to get at the temp sending unit!
Does anyone know where the oil pressure sending unit is and how to get at it? I've looked in the haynes repair manual but that wasn't helpful for this model. What have other people's experiences been with installing these sorts of gauges?

I have a picture of the location and some description from the FSM for 75 if that helps. However, it is in word format and i am not sure how to attach it here.

I think I've found it-its on the block next to the transmission trouble is its got 4 wires when everything I've read tells me it should only have one?