Now you want to really cornfuse the issue, look at this illustration for the '55-'57 and they show a lock washer in line with the spring in the exploded view. http://chevy.oldcarmanualproject.com/1929_57chevyparts/57cmpc0224.htm
Now I'm really getting screwed up, and I'd still like to hear a logical explanation why you would put an abrasive material spring loaded against a ground and polished shaft???

I think the engineers took a break and turned the illustrations over to the technical writers. I had a friend once that was a technical writer and he couldn't screw in a light bulb, but he could tell you how to do it.
Denny Graham
Sandwich, IL


Denny G
Sandwich, IL