Seatbelt Starter Interlock

[sir_veza]

I'm going to replace the engine harness next week. The car was built January 14, 1974 so I ordered the kit from after October 1973.
Specifically, the solenoid for the seatbelt interlock is still on the inner fender of the driver's side and is wired up. However for as long as I've owned the car the interlock has worked on the shoulder belt but not functioned with the ignition etc. I can still drive without a seatbelt but don't. I'm not clear on whether this wiring is part of the engine harness?
Also, any other issues to be aware of prior to starting this rewiring?
Thanks

 

[Ronbo73]

I can't help with the exact wiring but I would advise you to buy, if you don't own one already, a factory service manual for your year car. The information is invaluable. Use the link below and you can buy the PDF version.

Factory Shop Manuals for Ford, General Motors, Chrysler and Jeep | Detroit Iron

 

[sir_veza]

I can't help with the exact wiring but I would advise you to buy, if you don't own one already, a factory service manual for your year car. The information is invaluable. Use the link below and you can buy the PDF version.

Factory Shop Manuals for Ford, General Motors, Chrysler and Jeep | Detroit Iron

Thanks Ronbo. I already have the drawings on my computer.