Porsche 2012 911 GT3 CUP Technical Manual page 72

24. Remove the special tool. Fit the oil tube, without the use of excessive
force, to the casing and locate in position with the retaining screw.
An incorrectly fitted oil tube can collide with the gear shift forks
When the oil tube is fitted correctly it is visible through the bore in the
differential housing. This visual check is only possible with the differential
removed.
25. Smear the gearbox cover mounting faces lightly with sealing
compound.
26. Fit the drive shaft and gear recognition potentiometer as marked
during removal.
The potentiometer MUST be adjusted after the gearbox has been fitted to
the car (refer to Potentiometer Adjustment).
69