[69hardtop]

I’ve had this part laying around for some years now, not sure what it its. Over the last 10-12 years I’ve restored my own 64 GTO and helped two friends complete a 66 Chevelle 396 convertible and a 68 Firebird convertible. I’m positive these relays are not from my GTO - any ideas what they may fit ? Possibly some type of horn relay or convertible top relay…. They are “ganged together” on this mounting bracket so I’m guessing they control some type of power distribution function. 558904 stamped on it and maybe a faint date code underneath. I’ve come up empty in my limited search

[dataway]

Dual McGanzer Flange relays. First one energizes the Turbo Encabulator, second one rotates the McGanzer Flange into alignment with the exhaust outlet syncronizer.

[Bill Hanlon]

... but the second one has left hand thread.

[madeuce50]

A quick search by the part # shows:

1978-1980 Chevrolet-gmc Pickup Trucks Glow Plug Relay-part No. 558904

So any GM diesels in the mix?

[69hardtop]

Originally Posted by madeuce50

A quick search by the part # shows:

1978-1980 Chevrolet-gmc Pickup Trucks Glow Plug Relay-part No. 558904

So any GM diesels in the mix?

No, i saw that also that the base part number was also used as a glow plug relay for GM diesels. Nothing ever entered my garage like that so I’m guessing GM just reusing that number

[george kujanski]

I'm with dataway. It's used on the Turbo Encabulator to adjust the Marzel vanes.

george

[dataway]

69hardtop ... I'm sorry, I know the humor isn't helpful ... but I haven't been off the property in three weeks, it's making me kind of crazy.

[69hardtop]

Originally Posted by dataway

69hardtop ... I'm sorry, I know the humor isn't helpful ... but I haven't been off the property in three weeks, it's making me kind of crazy.

No problem….just cleaning up some old stuff and if I can identify this and someone can use it I would get it to them