Air horns (pictures)

[davepl]

Here are the various air horns available in the 1970 GMC Accessory catalog. As you can see if you have a light duty truck like ours you need the vacuum-powered compressor that is shown on the second page.

The first page is mostly for the tilt cab Astro 95, not applicable to us. The Town and Country set is made specifically for light-duty non-air trucks (except diesels, no vacuum to run the pump!).

The bigger ones are over 2' long... and by default they're all set up for roof mount, pull-cord action. But you can add the solenoid (Gosh I'd love to find an original solenoid and tank!)