INSTALL REAR DIFFERENTIAL DUST DEFLECTOR
| *1 | Plate |
Using a press, install the rear differential dust deflector.
Note
Be careful not to damage the dust deflector.
INSTALL REAR DIFFERENTIAL CASE SUB-ASSEMBLY (2 PINION DIFFERENTIAL)
Install the 2 thrust washers on the 2 side gears.
Install the 2 side gears, 2 differential pinions, 2 differential pinion thrust washers and differential pinion shaft in the differential case.
Tech Tips
Align the holes of the differential case and differential pinion shaft.
Measure the side gear backlash while holding 1 pinion gear toward the case.
| Backlash |
|---|
| 0.05 to 0.20 mm (0.002 to 0.008 in.) |
If the backlash is not within the specification, install a thrust washer of the different thickness.
| Thrust washer thickness |
|---|
| Thickness mm (in.) |
| 1.57 to 1.63 (0.0618 to 0.0642) |
| 1.67 to 1.73 (0.0657 to 0.0681) |
| 1.77 to 1.83 (0.0697 to 0.0720) |
Using a pin punch (5 mm) and a hammer, install the straight pin through the differential case and hole of the pinion shaft.
Using a chisel and a hammer, stake the outside of the differential case pin hole.
INSTALL REAR DIFFERENTIAL CASE SUB-ASSEMBLY (4 PINION DIFFERENTIAL)
Install the rear differential side gear thrust washer to the rear differential side gear.
Install the rear differential pinion thrust washer and rear differential pinion to the rear differential spider.
Fix the differential case RH.
Install the rear differential side gear and rear differential spider to the differential case RH.
Using a dial indicator, measure the differential case RH side backlash while holding pinion toward the case.
| Backlash |
|---|
| 0.05 to 0.20 mm (0.002 to 0.008 in.) |
Remove the rear differential spider from the differential case RH.
Install the rear differential side gear and rear differential spider to the differential case LH.
Using a dial indicator, measure the differential case LH side backlash while holding pinion toward the case.
| Backlash |
|---|
| 0.05 to 0.20 mm (0.002 to 0.008 in.) |
If the backlash is not within the specification, install the 2 side gear thrust washers with different thickness.
| Thrust washer thickness | ||||||||
|---|---|---|---|---|---|---|---|---|
|
| *a | Matchmark |
Align the matchmarks and assemble the RH and LH cases.
Using a plastic hammer, install the differential case.
Install the 8 bolts.
INSTALL REAR DIFFERENTIAL CASE SUB-ASSEMBLY (W/LSD DIFFERENTIAL)
Tech Tips
Using a shop rag, clean off any foreign matter from the parts.
Apply all of the sliding and rotating surfaces with LSD oil.
| *1 | Rear differential side gear thrust washer |
| *2 | Rear differential side gear thrust washer No. 1 |
| *3 | Clutch plate |
| *4 | Differential side gear |
Install the there parts to the differential case.
Install the 4 pinion gears and thrust washers to the spider.
Align the spring RH retainer holes with the spider knock pins and install the RH retainer.
Install the pinion gear and spider to the differential RH case.
Tech Tips
Install the spider to the RH case tightly and don't move the spring retainer.
Using a dial indicator, measure the side gear backlash while hold the side gear and spider.
| Backlash |
|---|
| 0.05 to 0.20 mm (0.0020 to 0.0079 in.) |
Tech Tips
Measure at all 4 locations.
Measure the backlash at the LH case and at the RH case.
If the backlash is not within the specification, install a adjusting shim of a different thickness.
| Mark | Thickness mm (in.) | Mark | Thickness mm (in.) |
|---|---|---|---|
| B | 1.86 (0.0732) | G | 2.16 (0.0850) |
| C | 1.92 (0.0756) | H | 2.22 (0.0874) |
| D | 1.98 (0.0780) | J | 2.28 (0.0898) |
| E | 2.04 (0.0803) | K | 2.34 (0.0921) |
| F | 2.10 (0.0827) | L | 2.40 (0.0945) |
Reinstall the spider and spring RH retainer to the differential RH case.
Tech Tips
Install the spider to the RH case tightly and don't move the spring retainer.
Install the compression spring and spring LH retainer.
Install the side gear, thrust washers and clutch plates.
Align the matchmarks and assemble the RH and LH cases.
Tech Tips
Be careful not to drop the side gear and check the pinion and side gear alignment.
Tighten the 8 bolts uniformly, a little at a time.
INSTALL DIFFERENTIAL RING GEAR
Clean the contact surfaces of the differential case and ring gear.
| *a | Boiling Water |
Heat the ring gear approx. 100 °C (212 °F) in the boiling water.
Carefully take the ring gear out of the boiling water.
After the moisture on the ring gear has completely evaporated, quickly install the ring gear to the differential case.
| *a | Matchmark |
Align the matchmarks on the ring gear and differential case.
Temporarily install 5 new lock plates and 10 bolts.
After the ring gear cools down enough, torque the 8 bolts uniformly at a time.
Tech Tips
Tighten the bolts in diagonal order little by little over several times.
Using a chisel and a hammer, stake the 5 lock plates.
Tech Tips
Stake one claw so that it is flush with the flat surface of the bolt. For the claw contacting the protruding portion of the bolt, stake only the half on the tightening side.
INSTALL REAR DIFFERENTIAL CASE BEARING
Using SST and a press, install the bearing on the differential case.
INSPECT DIFFERENTIAL RING GEAR RUNOUT
Install the differential case on the carrier, and install the 2 adjusting nut so that there is no play in the bearing.
Install the 2 bearing caps with the 4 bolts.
Using a dial indicator, measure the runout of the ring gear.
| Maximum runout |
|---|
| 0.07 mm (0.0028 in.) |
Remove the 2 bearing caps, 2 adjusting nuts and differential case.
INSTALL REAR DRIVE PINION FRONT TAPERED ROLLER BEARING
Using SST and a press, install the front bearing (outer race) to the carrier.
INSTALL REAR DRIVE PINION REAR TAPERED ROLLER BEARING
Using SST and a press, install the rear bearing (outer race) to the carrier.
INSTALL REAR DRIVE PINION REAR TAPERED ROLLER BEARING
Install the plate washer on the drive pinion.
Using SST and a press, install the rear bearing onto the drive pinion.
ADJUST DIFFERENTIAL DRIVE PINION PRELOAD
Install the drive pinion, rear drive pinion tapered roller bearing and rear differential drive oil slinger.
Tech Tips
Assemble the spacer and oil seal after adjusting the gear contact pattern.
Using SST, install the drive pinion companion flange.
Coat the threads of the nut with hypoid gear oil LSD.
Using SST to hold the flange, torque the nut.
Note
As there is no spacer, torque a little at a time, being careful not to overtighten it.
Apply hypoid gear oil LSD of the nut.
Using a torque wrench, measure the preload.
INSTALL REAR DIFFERENTIAL CASE SUB-ASSEMBLY
Place the 2 bearing outer races on their respective bearings.
Tech Tips
Make sure the right and left races are not interchanged.
INSTALL REAR DIFFERENTIAL BEARING ADJUSTING NUT
Install the rear differential bearing adjusting nuts on the carrier, making sure the nuts are threaded properly.
ADJUST BACKLASH DIFFERENTIAL RING GEAR AND DIFFERENTIAL DRIVE PINION
| *a | Matchmark |
Align the matchmarks on the cap and carrier.
Install the right and left bearing caps with the 4 bolts.
Tech Tips
If the bearing cap does fit tightly on the carrier, the adjusting nuts are not threaded properly. Reinstall the adjusting nuts if necessary.
Torque the 4 bearing cap bolts to the specified torque, then loosen them to the point where the adjusting nuts can be turned by SST.
Using the SST, torque the adjusting nut on the ring gear side until the ring has a backlash of about 0.2 mm (0.008 in.).
While turning the ring gear, use the SST to fully tighten the adjusting nut on the drive pinion side. After the bearings as settled, loosen the adjusting nut on the drive pinion side.
Using SST, torque the adjusting nut 1 to 1.5 notches from the 0 preload position.
Using a dial indicator, adjust the ring gear backlash until it is within the specification.
| Backlash |
|---|
| 0.13 to 0.18 mm (0.0051 to 0.0071 in.) |
Tech Tips
The backlash is adjusted by turning the left and right adjusting nuts for an equal amounts. For example, loosen the nut on the right side one notch.
| *a | Matchmark |
Torque the bearing cap bolts.
INSPECT TOTAL PRELOAD
Using a torque wrench, measure the drive pinion preload.
INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION
Coat 3 or 4 teeth at 3 different positions on the ring gear with red lead primer.
Hold the companion flange firmly and rotate the ring gear in both directions.
Inspect the tooth contact pattern.
| *a | Proper Contact | *b | Heel Contact |
| *c | Face Contact | *d | Toe Contact |
| *e | Flank Contact | *f | Select an adjusting washer that will bring the drive pinion closer to the ring gear. |
| *g | Select an adjusting washer that will shift the drive pinion away from the ring gear. | - | - |
| *1 | Plate Washer |
If the teeth are not contacting properly, use the following chart to select a proper washer for correction.
| Thickness mm (in.) | Thickness mm (in.) |
|---|---|
| 1.70 (0.0669) | 2.03 (0.0799) |
| 1.73 (0.0681) | 2.06 (0.0811) |
| 1.76 (0.0693) | 2.09 (0.0823) |
| 1.79 (0.0705) | 2.12 (0.0835) |
| 1.82 (0.0717) | 2.15 (0.0846) |
| 1.85 (0.0728) | 2.18 (0.0858) |
| 1.88 (0.0740) | 2.21 (0.0870) |
| 1.91 (0.0752) | 2.24 (0.0882) |
| 1.94 (0.0764) | 2.27 (0.0894) |
| 1.97 (0.0776) | 2.30 (0.0906) |
| 2.00 (0.0787) | 2.33 (0.0917) |
REMOVE REAR DRIVE PINION NUT
REMOVE REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY REAR
REMOVE REAR DIFFERENTIAL DRIVE PINION OIL SLINGER
REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING
REMOVE REAR DIFFERENTIAL DRIVE PINION BEARING SPACER
INSTALL REAR DIFFERENTIAL DRIVE PINION BEARING SPACER
INSTALL REAR DRIVE PINION FRONT TAPERED ROLLER BEARING
INSTALL REAR DIFFERENTIAL DRIVE PINION OIL SLINGER
INSTALL REAR DIFFERENTIAL CARRIER OIL SEAL
Using SST and a hammer, install a new rear differential carrier oil seal.
| Oil seal drive in depth |
|---|
| 0.7 to 1.3 mm (0.028 to 0.051 in.) |
Coat MP grease to the oil seal lip.
INSTALL REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY REAR
Using SST, install the companion flange on the drive pinion.
Coat the threads of a new nut with hypoid gear oil LSD.
Using SST to hold the flange, torque the nut.
INSPECT DRIVE PINION PRELOAD
Using a torque wrench, measure the preload of the backlash between the drive pinion and ring gear.
Tech Tips
If the preload is greater than the specification, replace the bearing spacer.
If the preload is less than the specification, retorque the nut with 13 N*m (130 kgf*cm, 9 ft*lbf) of torque at a time until the specified preload is reached.
If the maximum torque is exceeded while retightening the nut, replace the bearing spacer and repeat the preload adjusting procedure. Do not loosen the pinion nut to reduce the preload.
INSPECT TOTAL PRELOAD
Using a torque wrench, measure the preload.
INSPECT DIFFERENTIAL RING GEAR BACKLASH
Using a dial indicator, check the backlash of the ring gear.
| Backlash |
|---|
| 0.13 to 0.18 mm (0.0051 to 0.0071 in.) |
If the backlash is not within the specification, adjust the side bearing preload or repair as necessary.
INSPECT RUNOUT OF REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY REAR
Using a dial indicator, measure the runout of the companion flange vertically and horizontally.
| Maximum runout |
|---|
| 0.1 mm (0.0039 in.) |
INSTALL REAR DRIVE PINION NUT
Using a chisel and hammer, stake the drive pinion nut.
INSTALL REAR DIFFERENTIAL BEARING ADJUSTING NUT LOCK
Install 2 new rear differential bearing adjust lock on the bearing caps.
After tightening belts, bend the nut locks.