Transmission 5 Speed
Datsun Roadster Speedomoter Pinion 16 Tooth NISSAN
5 speed Transmission speedometer pinion 16 tooth gear.
Each tooth on a speedometer pinion gear represents 5 miles per hour.
If the speedometer is running too high you need to get a gear with more teeth to slow it down.
If the speedometer is running too slow you need to get a gear with less teeth to speed it up.