Porsche 1972 911 Workshop Manual page 373

M a n u a l T r a n s m i s s i o n
A s s e m b l i n g
C a u t i o n
When cleaning the final drive housing, do not
use corrosive cleaning materials as they will
damage the magnesium alloy.
1. Clean housing and check for wear, external
damage, and cracks. If repair is due to
broken pinion shaft of ring gear, check for
damage in center web bearing bores. Replace
the housing if necessary.
2. Install bearing outer race snap rings in
housing grooves.
N o t e
Position the large snap ring so that its gap will
rest in the groove in the housing. In no case
should the snap ring gap appear at the sides
where the groove is interrupted by a machined
cut.
3. Heat housing to approximately 1 2 0 ~ ~
outer races in with special tool US 8050.
4. Install breather and torque t o specification.
N o t e
The opening in the hex part of the breather must
face forward in direction of travel (toward
transmission front cover).