Porsche 911 Carrera Technical Manual page 174

911 Carrera (996)
Final drive -Differential, differential lock
39 08 15
Adjusting drive set -GT3
General
The adjustment of the pinion shaft and crown wheel is crucial for the service life and smooth running of
the rear-wheel drive assembly, Therefore, the drive wheel and crown wheels are paired as early as during
manufacture. They are checked with special testing machines to ensure a good positon of the contact
pattern and low noise in both directions of rotation. The position with the greatest smoothness of
operation is determined by shifting the pinion shaft in axial direction. This position is then marked on the
crown wheel as the installation dimension "E",
383_99
E = Installation dimension
1 = Installation dimension "E" (e.g. 70.27 mm)
2 = Circumferential backlash "F" (e.g. 0.14 mm)
3 = Pairing number
39 -219
39 08 15 Adjusting drive set -GT3
Printed in Germany -29, 1999
GT339219