I recently bought a 78 Regal and while driving it home I realized that the speedometer wasn't working at all. So the following Monday I removed the speedometer to see was the cable turning inside the tubing and it wasn't. So after a trip to Auto Zone and 10-20 minutes later I had the new inner cable cut, crimped, and installed. I drove it without the speedometer to see was it spinning now and it WAS. So I put in the speedometer back in and nothing happens...WTF? So after I few more days of troubleshooting, trial and error I'm close to giving up. But I want to have it fixed by time the paperwork comes in so I can use it as my daily driver. But I refuse to drive it without a speedometer cause getting pulled over at the age of 17 and the excuse my speedometer doesn't work just don't cut it. And 1 more ticket and my license revoked so if you have any input please help so I can get my car back on the road and move onto working on another part of the car.