This is just a guess on my part, but I wonder if it is a really big deal if you can't find the missing part. IF the speedometer is geared to show the correct speed with the rear end in high range, then the only time you would have an incorrect speed would be when you are in low. You can't go very fast in low, and only use it when you are starting out, or when a hill has pulled your speed down, so an accurate speed at that time is not very important anyway. If I am right, you could just connect the cable directly to the back of the speedometer, and forget it.
Does anyone know if my assumption is correct?
Allen
