Labels:text | font | screenshot OCR: SELECTING A GEAR CLUTCH GEAR LEVER SHAFT SELECTOR RODS TRANSMISSION SHAFT LAYSHAFT NEUTRAL GEAR This diagram shows the gearbox in neutral. The clutch shaft turns the layshaft. The upper gear wheels freewheel on the transmission shaft, so no power is transmitted between clutch shaft and transmission shaft. Moving the gear lever pushes or pulls one of the selector rods.