Never posted here before..not really sure if this is the correct place concerning automotive clocks. Okay I repaired the clock in my 66 Tbird only to find it is running fast and its back in the dash. So over in the Thunderbird forum they tell me..."As far as adjusting the clocks go, moving the hands less than about 10 minutes has no effect except to change the time. Adjusting more than that will cause the mechanism to change. With a bit of patience, the clock will run correctly." Is this possible? I'm thinking we need to adjust the hairspring. I've only ever dealt with pendulums so I'm not sure. I'm going to try whats suggested and it was said by two others as well. Thoughts?