tach swap

Hello all, I recently posted about some tach troubles. Well I have it all in the dash, mock jumper bar and everything. Signs of life, but no life. When ign is on, it jumps to zero, so I know it’s getting power. When I start the car, no rpm’s show up. I can tap the needle and it’ll go back to...

Alright, so I’m in the midst of swapping my clock for a tach. Everything’s going fine so far, apart from having to repair the circuit board. My only other problem I’ve run into is that I don’t seem to have this little red piece that supposedly goes in the back of the tach? Not sure to be honest...