The gear selector shafts are 3 shafts moved by the gear lever in the cab. Shaft 1 handles reverse, Shaft 2 for 1st and 2nd and Shaft 3 for 3rd and 4th.

The shafts need to be removed in order to remove the transfer case and the main and layshafts in the main gearbox. They are also overdue a good clean and new seals.


Bell-housing removed and gearbox mounted on the engine frame.
Top cover to be removed. The ends of the selector shafts can be seen on the right. 3rd gear is selected. If you imagine where your hand would be when you move the gear lever to the 3rd position, the “ball” on the end of the lever is in the opposite location.
Top cover removed reveals the 3 selector shafts. Top shaft is for 3rd and 4th gear. Middle shaft is for 1st and 2nd and lower shaft for reverse.
Once the top cap cover is removed, the shafts (with some tactical wiggling) lift free.. allowing the sludge to be removed
Upside down view of how the selectors sit in the gearbox. From Left to Right: Reverse, 1st to 2nd and 3rd to 4th
 …. and from a different perspective.