Why 10.7 volt input at ‘71 Duster instrument panel?

Dana67Dart said

On the Speedo I posted a photo of

The top hat washer is top and bottom and the rubber is between the housing and the top hats.

Click to expand...

I’m not following what you are telling me here. Are you telling me there should be 2 parts at each screw…. A top hat and a rubber washer?