That was one of my first projects was to replace the clear plastic bezel on the instrument housing. I made a good ground strap and used crimp lugs to connect it from the back of the housing to ground. I glass beaded the housing as it was rusted and repainted to stock colors including the bare metal on the back which made it look good and have a finished look. I took special care not to paint areas that need to be bare metal. I just wish the Speedo cable was easier to R&R, my hands are large and it is a tight fit to get to it not to mention dropping the steering wheel column.
