in my 1951 chevy 3100 all origonal (3 on the tree) my speedo is not workin the speedo head is fine i rebuilt it and the cable is fine i put a drill on the end of the cable from off of the tranny and ran a drill, the speedo works and cable works, now i removed the gear nut from the tranny and the squair part is good and the gear at the end is fine too, the gear inside the tranny that drives this unit was not visable so i put my finger in there and i could spin the gear inside the tranny (the tranny was in N) now i am not sure what the problem could be as to why the speedo is not working?? unless the gear on the inside is stripped although it did not feel stripped??
