Limited Slip Differential Disassembly/Assembly
Disassembly- Remove ring gear.
- Loosen socket head bolts on housing flange and remove cover.
Remove all inside parts.
CAUTION: Note sequence of disc installation, so that differential maintains proper locking effect.
Assembly
- Check all parts for wear or damage, and replace if necessary.
a) Differential Housing - Check guide grooves for outer splined discs and pressure rings for wear.
b) Pressure Rings - The guide tabs and bearing surfaces must not show excessive wear or scoring. They must also move easily in differential housing.
c) Differential Gears - The bearing surfaces for the thrust washers must not be worn and the inner splined discs must move easily on the serration of the differential gears.
d) Discs - Check inner and outer splined discs for wear. The guide tabs of the outer splined tabs of the outer splined discs and the inner splined disc serration should not be worn.
- Before installation, lubricate all sliding surfaces of the discs, the pressure rings and the differential shafts with hypoid gear lube SAE 90.
- Insert thrust washers, so that the retaining tabs engage in the bore of the housing or housing cover. It is recommended to coat the washers with a little grease to provide a better bold.
- Install other parts as illustrated.
CAUTION:
^ To prevent changing the locking effect, it is essential that the discs be reinstalled in their proper positions.
^ Wavy outer splined discs must face housing or housing cover.
- To measure locking effect of limited slip differential, install two drive flanges and clamp one (with two bolts inserted) in a vise. Install locally manufactured adaptor and turn differential with torque wrench.
- Check that torque is 4-8 mkg (29-58 ft lb).
- Inner disc replacement part: 917.332.551.10 (2.0 mm thick)
- To meet or change the torque requirements of the limited slip differential, the following outer splined discs are available:
917.332.552.10 (1.9 mm thick)
917.332.552.11 (2.0 mm thick)
917.332.552.12 (2.1 mm thick)
- The wavy outer splined discs 901.332.552.12 (2.0 mm thick) remain in use.
NOTE: If the thickest discs are installed and the torque is still not correct, all discs are worn and must be replaced.