On the dynamotor mounts - these are for post-WWII sets and they are threaded: https://www.ebay.com/itm/Vintage-Shock-Absorbers-Aircraft-Radio-Corp/201505795838 Maybe they'll work? Dave N9ZC -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.qth.net/pipermail/arc5/attachments/20191231/cc3531a5/attachment.html>