starter relay issue

HemiDenny said
I pulled apart the most recent failed relay and it looks brand new inside....no broken or scored anything...nada

while at Ross's, HemiMark pointed to what looks like a flasher /relay mounted on the inner fender near the firewall and asked...what's that for?....I could not remember, but got to thinking that might be the issue. It could be part of the 1974 emissions (leaner burn) mandate and is messing with the timing/ electrical. Since the car had factory electronic ignition ...I used all the factory harness. It is not horn related. ....horn works when disconnected.

anybody know what it is and it's function?....from memory (and Margaritas at Ross's) 3 wires from it.

I would post a picture, but I'm 30 miles away from the car at present.

Post a photo!!!

I didn't realize this was a 74. You don't still have the seat belt interlock box do ya? This has a reset button on a horn relay looking box under the hood. The starter relay "start" wire goes through that. If you have it, you need to jumper the two yellows together

This thing here.........

So far as your dissection, I'd be making sure that the relay is actually what is failing. Hook the two spade connectors to a battery........does it pull in? If not the coil is bad. If so, inspect the contacts. If they look fairly clean, there's likely nothing at all wrong with the relay