There are three kinds of gear shafts within a manual transmission: the output shaft, the input shaft, and the layshaft.
- Output Shaft: the output shaft is connected to the differential, which allows the wheels of a vehicle to turn at different speeds.
- Input Shaft: the input shaft is connected directly to the engine and turns at the same speed, or carries the same rotational power that the engine puts out.
- Layshaft: the layshaft is a mesh of gears as one whole unit, which works with the input shaft to shift between gears, selected by the gear selector fork.
Napa Service Assistant
You don’t have to be an expert to know that preventive maintenance is the best way to make sure your vehicle is running properly. Use our interactive vehicle tool to learn about the maintenance and services your NAPA AutoCare Center can provide.