Replacement Type 3 speedometer driven gear for various 1980-2004 Ford and Mercury models. These right hand rotations gears were used on both automatic and manual transmissions with drive gear access holes on the driver side of the vehicle. They clip to the end of the speedometer cable and are inserted into the end of the transmission. Can be used as stock replacement or to recalibrate a vehicle speedometer to ring and pinion swaps or larger wheels/tires.Transmission Applications:AOD Automatic TransmissionAODE Automatic TransmissionE4OD Automatic Transmission4R70W Automatic TransmissionA4LD Automatic Transmission{specs}