ID item on firewall. M51A2

Recovry4x4 · Mar 13, 2021

So, I have this 1967 M51A2. I'm going to replace the wiring harness on the truck but I found an unknown item on the firewall. It's a box right on the firewall. It has a decent size cannon plug going into it. Check out this pic.

eric67camino · Mar 13, 2021

I believe that could be the turn signal flasher unit.

Recovry4x4 · Mar 13, 2021

I guess I'll need to remove it to see what it is. In this view you can see the flasher above that unknown device.

Crazyguyla · Mar 13, 2021

Recovry4x4 said:
So, I have this 1967 M51A2. I'm going to replace the wiring harness on the truck but I found an unknown item on the firewall. It's a box right on the firewall. It has a decent size cannon plug going into it. Check out this pic.

Capacitor, Flux waterproof ???

Crazyguyla · Mar 13, 2021

Recovry4x4 said:
I guess I'll need to remove it to see what it is. In this view you can see the flasher above that unknown device.

Seriously, after looking in the TM, I'm going to say it's the warning buzzer. The TM shows the buzzer on the engine side if the firewall.

AMGeneral · Mar 14, 2021

Old style starter relay?

Floridianson · Mar 14, 2021

Crazyguyla said:
Capacitor, Flux waterproof ???

Passenger side air bag.

G744 · Mar 14, 2021

Them be Bendix connectors, not Cannon.

DG

Ferroequinologist · Mar 14, 2021

AMGeneral said:
Old style starter relay?

That's my guess. Heavy wires going in?

Recovry4x4 · Mar 14, 2021

I'll have to look into it next Friday to see exactly what it is.

ID item on firewall. M51A2

More options

Recovry4x4

LLM/Member 785

Attachments

eric67camino

Well-known member

Recovry4x4

LLM/Member 785

Attachments

Crazyguyla

Active member

Crazyguyla

Active member

AMGeneral

Well-known member

Floridianson

Well-known member

G744

Well-known member

Ferroequinologist

Resident railroad expert

Recovry4x4

LLM/Member 785