That is the spring that keeps the adjuster cap from turning. I don't think that you will find a source for a new one. They do sell new wheel cylinders though. A rebuilder may be able to replace the spring.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!