Where is speedo fitted onto gearbox of 1998 vectra diesel?

In a 1998 Vauxhall Vectra diesel, the speedometer is typically fitted to the gearbox via a speed sensor located on the transmission. This sensor measures the rotational speed of the output shaft and sends signals to the vehicle's instrument cluster to display the speed. You can usually find it on the side of the gearbox, near the differential area. If you're looking to replace or inspect it, ensure you check the specific model and gearbox type, as there may be slight variations.