Strange Speedometer Cable
the speedo in my 1975 plymouth duster always worked fine, until after a recent brake line job it stopped working dead cold. I figured something got jostled around while routing a brake line through a tight spot so I traced the cable back up from the transmission and found this weird...cylinder? it has two screw on parts where either ends of the cable connect, and in the middle there is this tiny impeller screw. it seems like the two parts are magnetic? they don't connect in any mechanical way. Does anyone know what this is? some sort of sending unit? a converter? Alien tracking device? How should I put it back together? Should I just convert to a regular speedometer cable? I'm sure someone on here will know.
the speedo in my 1975 plymouth duster always worked fine, until after a recent brake line job it stopped working dead cold. I figured something got jostled around while routing a brake line through a tight spot so I traced the cable back up from the transmission and found this weird...cylinder? it has two screw on parts where either ends of the cable connect, and in the middle there is this tiny impeller screw. it seems like the two parts are magnetic? they don't connect in any mechanical way. Does anyone know what this is? some sort of sending unit? a converter? Alien tracking device? How should I put it back together? Should I just convert to a regular speedometer cable? I'm sure someone on here will know.
