PROCEDURE
FIX REAR DIFFERENTIAL CARRIER ASSEMBLY IN PLACE
Fix the rear differential carrier assembly to the overhaul attachment.
INSPECT REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY REAR
| *a | Vertical Runout |
| *b | Lateral Runout |
Using a dial indicator, measure the runout of the companion flange vertically and laterally.
| Distance from center to runout measurement point |
|---|
| 30 mm (1.18 in.) |
| Maximum Runout | ||||||
|---|---|---|---|---|---|---|
|
If the runout is more than the maximum, replace the companion flange.
INSPECT RUNOUT OF DIFFERENTIAL RING GEAR
Using a dial indicator, check the runout of the ring gear.
| Maximum runout |
|---|
| 0.07 mm (0.00276 in.) |
If the runout is more than the maximum, replace the ring gear with a new one.
INSPECT DIFFERENTIAL RING GEAR BACKLASH
Using a dial indicator, check the backlash of the ring gear.
| Standard backlash |
|---|
| 0.10 to 0.20 mm (0.00394 to 0.00787 in.) |
If the backlash is not within the specification, adjust the side bearing preload or performs repairs as necessary.
INSPECT DIFFERENTIAL DRIVE PINION PRELOAD
Using a torque wrench, measure the preload of the backlash between the drive pinion and ring gear.
| Standard preload (at starting) |
|---|
| 0.88 to 1.98 N*m (9.0 to 20.2 kgf*cm, 7.8 to 17.5 in.*lbf) |
If necessary, disassemble and inspect the differential assembly.
INSPECT TOTAL PRELOAD
Using a torque wrench, measure the preload with the teeth of the drive pinion and ring gear in contact.
Using a torque wrench, measure the total preload.
| Standard Total Preload (at starting) |
|---|
| Drive pinion preload plus 0.20 to 0.40 N*m (2.0 to 4.1 kgf*cm, 1.8 to 3.5 in.*lbf) |
If necessary, disassemble and inspect the differential.
REMOVE DIFFERENTIAL LOCK SHIFT ACTUATOR
Remove the 4 bolts and actuator from the differential carrier.
Remove the O-ring.
REMOVE DIFFERENTIAL LOCK INDICATOR SWITCH
Remove the indicator switch and gasket.
REMOVE REAR DIFFERENTIAL LOCK SHIFT FORK SHAFT
Using a 6 mm hexagon wrench, remove the 2 screw plugs.
Remove the spring seat, spring and ball.
Using a 5 mm pin punch and hammer, remove the slotted pin.
Remove the 2 bolts from the shaft retainer.
Using a plastic-faced hammer, remove the shaft retainer.
Remove the shift fork shaft.
Remove the rear differential lock sleeve.
REMOVE REAR DRIVE PINION NUT
Using SST and a hammer, loosen the staked part of the nut.
Note
Be sure to use SST with the tapered surface facing the shaft.
Do not grind the tip of SST with a grinder, etc.
Completely loosen the staked part of the nut when removing.
Do not damage the threads of the drive pinion.
Use SST to hold the drive pinion companion flange.
Using a 30 mm socket wrench, remove the rear drive pinion nut.
REMOVE REAR DRIVE PINION COMPANION FLANGE SUB-ASSEMBLY REAR
Using SST, remove the drive pinion companion flange.
Note
Apply grease to the threads and tip of SST center bolt before use.
REMOVE REAR DIFFERENTIAL CARRIER OIL SEAL
Using SST, remove the oil seal from the differential carrier.
REMOVE REAR DIFFERENTIAL DRIVE PINION OIL SLINGER
Note
Apply grease to the threads and tip of SST center bolt before use.
REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING (INNER)
Using SST, remove the drive pinion tapered roller bearing from the drive pinion.
Note
Apply grease to the threads and tip of SST center bolt before use.
REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING (OUTER)
REMOVE REAR DIFFERENTIAL BEARING ADJUSTING NUT LOCK
Remove the 2 bolts and 2 rear differential bearing adjusting nut locks.
REMOVE DIFFERENTIAL CASE ASSEMBLY
Place matchmarks on the bearing cap and differential carrier.
| *a | Matchmark |
Remove the 4 bolts and 2 differential bearing caps.
Remove the 2 adjusting nuts.
Remove the rear differential case sub-assembly and 2 case bearings from the differential carrier.
Tech Tips
Tag the 2 case bearing outer races so that they can be reinstalled in the correct locations.
REMOVE DIFFERENTIAL DRIVE PINION
Remove the differential drive pinion and bearing spacer from the differential carrier.
REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING (INNER)
Using SST and a press, remove the drive pinion tapered roller bearing from the drive pinion.
Tech Tips
If either the drive pinion or ring gear is damaged, replace them as a set.
Note
Do not drop the drive pinion.
REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING (OUTER)
Using a brass bar and hammer, remove the rear tapered roller bearing from the carrier.
Tech Tips
If the bearing is damaged during the removal, replace it.
REMOVE REAR DIFFERENTIAL DRIVE PINION PLATE WASHER
REMOVE DIFFERENTIAL RING GEAR
Place matchmarks on the ring gear and differential case.
| *a | Matchmark |
Using a screwdriver and hammer, unstake the lock plates.
Remove the 12 ring gear set bolts.
Using a plastic-faced hammer, tap on the ring gear to separate it from the differential case.
REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING
Using SST, remove the front tapered roller bearing from the carrier.
Using a brass bar and hammer, remove the oil storage ring from the carrier.
Tech Tips
If the bearing is damaged during the removal, replace it.
INSPECT DIFFERENTIAL CASE ASSEMBLY RUNOUT
Install the rear differential case bearing to the differential case.
Install the differential case to the differential carrier.
Install the 2 bearing caps to the differential carrier with the 4 bolts.
Inspect the differential case runout.
| Maximum runout |
|---|
| 0.07 mm (0.00276 in.) |
Remove the differential case.
Remove the rear differential case bearing.
REMOVE REAR DIFFERENTIAL CASE BEARING
Using SST, remove the 2 rear differential case bearings from the differential case.
DISASSEMBLE DIFFERENTIAL CASE
Place matchmarks on the LH and RH cases.
| *a | Matchmark |
Remove the 8 bolts.
Using a plastic-faced hammer, separate the LH and RH cases.
| *1 | Side Gear |
| *2 | Side Gear Thrust Washer |
| *3 | Spider |
| *4 | Pinion Gear |
| *5 | Pinion Gear Thrust Washer |
Remove the parts shown in the illustration from the differential case.