Porsche 911 Carrera Technical Manual page 91

Final drive -Differential, differential lock
911 Carrera 4 (996)
6. Counter collar nut with 170 Nm (126 ftlb.),
loosen again and tighten to 120 Nm
(89 ftlb.).
275_98
1 -Halfshaft flange
2 -Collar nut
A -Screw locking lacquer
(Loctite 243 or Omnifit 50 M)
7. Check transmission oil (refer to
Servo No. 39 90 55).
Removing and installing sealing ring for cardan flange
C4S39109 Printed in Gennany -14, 1998
39 82 19
39 -112