95 KA24DE Automatic Transmission

[Datsun Parts]

Hello everyone!

I am a newbie here and I need your help. I am attempting to install a 95 (S14) KA24DE engine and automatic transmission into my 76 Datsun 620 truck. My question is I just learned that there is a TCM and harness that I did not get when I picked up the engine and trans. There are 4 plugs coming out of the transmission that are not part of the ECU loom so I assume they go to the TCM. My question is what are those wires and can I bypass them? I guess they are the various sensors like park, neutral, and others. Also, what about the inhibitor switch do I need that too? Thanks in advance. I want the automatic so please no advise to switch to the 5 speed.