I had the starter rebuilt on my 1952 Chevy 3100. When I reinstalled it, and started the truck, the starter made so much noise, I couldn't hear the engine.
So, of course, I did a search on the forum to figure out what was wrong. I found a post about the starter linkage hitting the firewall. When I checked mine out, I noticed I had forgotten to hook the little spring back up that pulls the linkage away from the button. It's as quiet as a mouse now. Thought this might help someone else.

My dad always told me, "Don't force it, get a bigger hammer".