Posted 6/15/2022 17:50 (#9707017 - in reply to #9703646) Subject: RE: 2speed vacuum valve for 1974 C65 Chevy?
Milford, IL
I had one in a similar truck, maybe a little older. Diaphragm had failed, I cut a piece of tire tube and valve worked great with the repair. Not sure how long the repair would have lasted, I retired the truck shortly afterwards.