Vehicles after change point in 1982
DISASSEBLING/ASSEMBLING
LIMITED SLIP DIFFERENTIAL
- Final Drive Removed -
Remove limited slip differential - see "Replacing
Limited Slip Differential" - 33 14 520.
Unscrew case cover mounting bolts.
Take off case cover.


33 14 520

Turn case upside down to let parts slide out.
Installed Order:
(1) case cover, (2) thrust washer, (3) disphragm
spring, (4) stepped washer, (5) spacer, (6) diaphragm
spring, (7) outer plate, (8) inner plate,
(9) thrust ring, (10) differential side gear,
(11) differential gears with differential shafts,
(12) differential case.

Check all parts for wear, e.g. molybdenum
coat, splines, etc...
Installation:
Lubricate all parts with approved final drive
oil before assembling.

Install following parts in correct installed order
to measure the pre-load.
Spacer (5), outer plates (7), inner plates (8),
thrust rings (9) , differential side gears (10) and
differential gears with differential shafts (11).
Measure distance A from case edge to outer
plate, e.g. A = 19.5 mm (0.768´´).

Measure distance B on cover, e.b. B = 14.4 mm
(0.567´´).

Place both diaphragm spring curved surfaces
together.
Measure distance C on diaphragm springs, e.g.
C = 4.8 mm (0.189´´).

An installed clearance of 0.1 to 0.4 mm (0.004
to 0.016´´) is required to prevent pressing the
diaphragm springs flat.
Example:
B (cover)............................... 14.4 mm (0.567´´)
C (diaphragm springs).............. 4.8 mm (0.189´´)
A (case)................................. 19.5 mm (0.768´´)
Sum of B + C .........................19.2 mm (0.756´´)
Installed clearance D...............0.3 mm (0.012´´)
Correct any deviation in installed clearance D
by installing outer plates of correct thickness.

Remove all parts from case and insert with the
additional parts, thrust washers (2), diaphragm
springs (3) and stepped washers (4).
Mount and press on case cover (12) firmly
(don´t bolt).
The pre-load of small diaphragm springs (3)
should produce an uniform gap all around
(check with feeler gauge blade).
If there is no clearance between cover and case,
check diaphragm springs (3), thrust washers (2)
and stepped washers (4).

Installed Order:
Thrust washer (2) with oil pockets facing case
(down).
Diaphragm spring (3) with inside curved surface
facing differential shaft (up).
Stepped washer (4) with smooth side facing
diaphragm spring (down) and tab engaging in
guide in case.

Install spacer (5), diaphragm spring (6) with
inside curved surface facing differential shaft
and outer plate (7) with four tabs.
Install molybdenum coated inner plate (8).

Install thrust ring (9) and dirfferential side gear
(10) by turning in guides or spline of inner
plate.
Install differential gears with shafts (11),
second differential side gear (10) and thrust
ring (9).

Install molybdenum coated inner plate (8) and
outer plate (7).
Insert diaphragm spring (6) with inside curved
surface facing differential shaft (down).

Insert thrust washer (2) with oil pockets facing
cover, diaphragm spring (3) with inside curved
surface facing out and stepped washer (4) with
smooth side facing diaphragm spring and with
tab in case cover groove in case with grease.

Mount case cover with washers (don´t let
stepped washer slide out of groove).
Install bolts with Loctite No. 270 and tighten
cover uniformly.
Installation:
Tightening torque*.


* See Specifications

Check slip torque* of differential lock by
holding one and driving other differential side
gear.
Make up tool locally for this purpose by, for
example, welding a nut on a drive flange which
is no longer required.