NOS 3843787 wiring fits what?

Anyone know what this fits? Part number 3843787. I assume it is a mid to late 70`s part?

it is definitelly an underdash harness for some accesory. By the PN, seems tobe soemething between 74-78

Looks like a cruise control harness from late seventies to early eighties.

Thanks for the help.

Cruise control doesn't require a wired ground source and this harness does.

A cruise servo does require a ground. As I recall some were self grounded through the housing to the inner fender and the later servo's had a wire.

My 1981 Parts book does not show it...but the 1980 has a close hit, that being: 3843789, which is "WIRING, Inst. Panel", and shows up in the 14-1200/30 - "Speed Control H-N-F-G" section of that book.

The later servos are plastic and require a ground wire.

makes sense thanks

I didn't say it doesn't require a ground, but a wired ground

Yes, lates servos, but lates how lates? Definitelly not 70s which are the ones for this harness period by the PN ( and that's why I said that ), maybe 80s/90s.

This is definitely an underdash harness, but cruise control? dunno. I can't see the plug for the control switch which these harness get.

and those 90 degrees plugs, it seems to be for some cluster gauge stud...

Just thinking out loud.

So the mystery remains.LOL I was wondering about 90 degree plugs also. Does looks like they plug on the cluster or something like that.

What does it look like stretched out? That might give a clue to where the different plugs go. It looks like the flat connectors and the bent end ones aren't grouped together so they could go to two different areas.