A500/A518 Cars, OD and L/U on a toggle or auto?

Hey Y’all how’s it going?
I have a 42rh out of a Dakota. Where can I find a wiring diagram that shows what all the wires are?
Round plug with 3 pins &
Oval plug with 3 pins
Thanks in advance

The oval plug when installed.
Center wire is ignition switched hot feed
Fwd wire is lockup solenoid
Rear wire is O/D solenoid
Transmission case is ground return.

Round plug on the side is neutral safety/reverse light switch. Its pinned the same way as your stock wiring, that one you just plug in your body wiring, and done.