Quoted from FirePower:I was able to get a new replacement AS-1046-642 wiper arm assembly from pbresource and wanted to share some pictures of just how worn out my original part was.
Wow I am not surprised that my scoring was not working most of the time as 3 of the arms were almost completely shot!
Steve has lots of parts. I was able to buy a metal ball gauge for my '52 Hong Kong from him. I also have a Space Time... Curious, how much was the wiper arm?