I am trying to locate a tool that will unscrew the notched bolt at the base of the windshield wiper arm on my 57 Olds. I thought a spanner wrench would do the job, but it will not (too thick and the wrong shape). This bolt is twice notched, 180 degrees apart. Any idea what this specialty tool is called, and where can I go to get one???

 

i know the part your talking about..have you tried a 55-57 chevy parts place? i think they may use the same nut...

 

ok gotta love google...here ya go..its for a tri 5 chev but you see what it looks like and it seems to me you could grind off a tiawan deep socket and make it yourself...

http://www.classicchevy.com/product....&dept%5Fid=120

 

Way to go leadfoot! That think looks a little like a bike tool for the sprocket. Absolutely amazing what you can find on the web (at least the one that's working).

Dan, can you post a pic of the nut you're talking about, I'd like to see how the tool would fit.

 

Its totally the wrong tool, but i used needle nosed pliers with success..Alot of patience and take your time

 

leadfoot067,
Thanks for finding the "escutcheon" tool.. I will need to find out how to get my wiper arm off, but once I remove it, this tool should work!

The tool has two small male ends that insert into the female slots of the escutcheon nut 180 degrees apart and this is part of the windshield wiper transmission assembly. If you go to the web site leadfoot provided above, click the installation guide box (left center of page) and they have it nicely illustrated from start of job to finish. It was a great find!

 

This would probably work, providing I place plummers tape or something like it over the metal of the pliers to keep from scratching the chrome. I also need to look further into how to get those wiper arms off. I'll be cracking open ye old shoppe manual! Thanks for responding.