My odometer works but not the speedometer. When I first got the car, neither worked. I replaced the angle drive and cables, and found the lower cable was 1/2" short. If I hook a drill up to the lower cable (to simulate driving) both the speedometer and odometer work. When hooked up and driving, only the odometer works. They both operate off the same cable don't they? How could this be? Help. John 1383 $ 5326