Swapped to Muscle - 75 Duster Daily build

SIX225 said

While your looking into the wiring and the dash is out, you might want to look into how the seatbelt interlock is connected/bypassed. It only allowed the starter to operate when the seat belt was latched. I thought it was a '74 only thing, but that little box with the red button by your HEI module looks like part of the system. Been so long, but I remember at module under the dash that I removed and connected two wires.

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I noticed the same thing. I thought it was a '74 only thing as well, my guess is that a '74 wiring harness was swapped in.

On my car, I screwed around with that box forever. In the end, it is still plugged in and works fine, no idea why. As I recall, the outcry on this system was so great that I think they did a recall and disabled it. Maybe that's what happened to mine?

Chambec, I would be curious if your car has the extra box under the dash. I will get you a picture later today so you can compare. It would be up under the dash to the left of the steering column next to or on top of the fuse box. I'd guess about 3x5 plastic with a bunch of wires running into one side.