I'm in the process of installing A 4 speed manual transmission in my 72 skylark with A 350. I bought A NOS GM 64-72 10.5 clutch kit the other day off Ebay but don't have the throw out bearing. I was wondering if someone knows the part number of the throw out bearing that was used on A original small block buick clutch.
I bought one from Falcon in NY. He knows exactly what you need. I had the same set up. 350-4 Muncie M20. I would call them on Monday. https://falconauto.com/