Porsche 2012 911 GT3 CUP Technical Manual page 67

6. Mount the gear selector barrel-drive in position before fitting the
mounting plate.
7. Fit the complete mounting plate to the differential housing and tighten
(7x M8 cap head screws). Lightly coat the threads with Loctite 243
The gearbox must be positioned vertically before fitting the
mounting plate
8. Rotate the selector barrel to the 1st gear position. Slide the oil pump
drive, spacer, 3rd gear, bearing hub, needle roller bearing and 2nd gear
to the shaft
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