I have a Shopsmith #555077 Dust Chute Upgrade kit without the instructions. If anyone can get me a copy please PM me. I'm hoping that there are instructions on the drilling required.
Check with Shopsmith. If you are referring to the jointer upgrade, SS sold the kit with a template and the proper drill bit and tap for the installation. If you do not have the tap it is 1/4 inch 28 teeth per inch.
Bill V