Location of the vehicle speed sensor on the gearbox.
With the ignition off, press the locking lever of the engine management system wiring harness connector…
…disconnect the wiring harness connector from the speed sensor.
Using a 27 mm wrench, rotate the sensor by the hexagon counterclockwise and unscrew it from the sensor drive housing.
Using a 10 mm spanner, unscrew the speed sensor drive mounting bolt…
…and we remove the drive from the clutch housing socket.
The drive housing is sealed in the clutch housing socket with a rubber ring.
If the ring is damaged (breaks, cracks) we remove it from the groove of the drive housing and replace it with a new one.
We install the drive and speed sensor in the reverse order.
In this case, the sensor tail must enter the hole in the drive shaft.
The article was borrowed from the website ChevyMan.ru