Porsche 911 Carrera Technical Manual page 175

Adjusting drive set
Adjusting pinion shaft
Determining thickness of adjusting shim "53"
53 = Ai + g -c
Determine Al
Al = Installation dimension E + pinion height
Note
Installation dimension E is marked on the crown
wheel.
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3. Determine dimension "c"
Example:
70.27 mm
+ 42.31 mm
112.58 mm
C = Cl + C2 -C3
E
Pinion height
Al
Set the setting collar of measuring mandrel
VW 385/1 to the dimension "a",
-
A
A -Special tool 9508/1
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a -approx. 65 mm
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2. Determine dimension "g".
Measure width of cylindrical-roller bearing.
For example: 22.96 mm
390815
Adjusting drive set -GT3
Printed in Germany -29, 1999
39 -220
GT339219