Window Motor GEAR: 56-80 era GMFor the LH or RH sides a different motor exists while the motor is LH or RH sides.. the gear is the same.. Fits numerous GM vehicles including but not limited too.. Fits SO many GM vehicles.. but The gear shown has 12 teeth on the small side and 46 on the larger plastic spline side The Motor gear. shown here.. is the same on either sides US Drivers or US passenger sides.. it does not come with the remanufacturered new electric