Disassembly
To detect real cause of trouble, inspect the following items before disassembling.- Tooth contact of hypoid drive gear and pinion, and backlash
- Runout of drive gear at its back surface
- Turning resistance of drive pinion
1. Set ATTACHMENT on vise and install the differential assembly to Attachment.
2. Drain gear oil by removing plug.
3. Remove rear cover by loosening retaining bolts.
4. Make right and left side bearing retainers in order to identify them at reassembly. Remove side bearing retainer attaching bolts, set ATTACHMENT to differential case, and extract right and left side bearing retainers with a puller.
- Each shim, which is installed to adjust the side bearing preload, should be kept together with its mating retainer.
5. Pull out differential case.
- Be careful not to permit the teeth to contact the case
6. When replacing side bearing, pull bearing cup from side bearing retainer.
7. Extract bearing cone with PULLER SET.
a. Set Puller so that its claws catch the edge of the bearing cone.
b. Never mix up the right and left hand bearing cups and cones.
- Do not attempt to disassemble the parts unless necessary
8. Remove drive gear by loosening drive gear bolts.
- Further disassembling is not allowed.
9. Hold companion flange with FLANGE WRENCH and remove drive pinion nut.
10. Extract the companion flange with a puller.
11. Press the end of drive pinion shaft and extract it together with rear bearing cone, preload adjusting spacer and washer.
- Hold the drive pinion so as not to drop it.
12. Remove rear bearing cone from drive pinion by supporting cone with REPLACER. Place the replacer so that its center-recessed side faces the pinion gear.
13. Remove front oil seal from differential carrier.
14. Remove pilot bearing together with front bearing
15. When replacing bearings, tap front bearing cup and rear bearing cup in this order out of case by using a brass bar.