Ring Gear Mounting Case and Center Differential Case
COMPONENTS
DISASSEMBLY OF RING GEAR MOUNTING CASE AND CENTER DIFFERENTIAL CASE
1. REMOVE OIL PUMP DRIVE GEAR
a. Using a screwdriver, remove the shaft snap ring.
b. Remove oil pump drive gear.
2. REMOVE RING GEAR MOUNTING LEFT CASE
a. Place matchmarks on the differential left case and the differential right case.
b. Remove the twelve bolts.
CAUTION: Using the soft jaws, hold the left case in a vise.
c. Remove the differential left case upward.
3. REMOVE RING GEAR
a. Place matchmarks on the differential left case and ring gear.
b. Using a plastic hammer, tap out the ring gear.
c. Remove the O-ring from the left case.
4. REMOVE LEFT CASE BEARING
Using SST and a press, press out the bearing.
SST 09950-00020
5. REMOVE THRUST WASHER
6. REMOVE CENTER DIFFERENTIAL CASE ASSEMBLY
7. DISASSEMBLE CENTER DIFFERENTIAL CASE
a. Using snap ring pliers remove the shaft snap ring.
b. Remove the spacer.
c. Remove the following parts from the center differential case.
1. Four pinion shafts
2. Pinion shaft holder
3. Four differential pinions
4. Four pinion thrust washers
5. Differential side left gear
6. Side gear thrust washer
8. REMOVE DIFFERENTIAL SIDE RIGHT GEAR AND CONICAL SPRING WASHER
9. REMOVE RIGHT CASE BEARING
Using SST and a press, press Out the bearing.
SST 09950-00020
ASSEMBLY OF RING GEAR MOUNTING CASE AND CENTER DIFFERENTIAL CASE
1. INSTALL RIGHT CASE BEARING
Using SST and a press, press in the bearing.
SST 09316-20011, 09608-35014 (09608-06020, 09608-06120)
2. INSTALL LEFT CASE BEARING
Using SST and a press, press in the left case.
SST 09316-12010,09608-35014 (09608-06020, 09608-06120)
3. INSTALL RING GEAR
a. Clean the contact surface of the ring gear mounting left case.
b. Heat the ring gear to about 212 °F (100 °C) in an oil bath.
CAUTION: Do not heat the ring gear above 230 °F (110 °C).
c. Clean the contact surface of the ring gear with cleaning solvent.
d. Align the matchmarks and quickly install the ring gear on the ring gear mounting left case.
4. CHECK AND ADJUST CENTER DIFFERENTIAL SIDE GEAR BACKLASH
a. Install the following parts to the center differential case:
1. Side gear thrust washer
2. Differential side left gear
3. Four pinion thrust washers
4. Four differential pinions
5. Pinion shaft holder
6. Four pinion shafts
b. Install the spacer to the case as shown.
c. Using a dial indicator, measure the backlash of one pinion gear while holding the side gear toward the case.
Standard backlash: 0.05 - 0.20 mm (0.002 - 0.0079 in.)
NOTE: Do not place in a vise the surface of the center differential case which comes in contact with the bushing.
Referring to the table below, select the thrust washer which will ensure that the backlash is within specification. Try to select a washer of the same size.
d. Using snap ring pliers, install the shaft snap ring.
5. CHECK AND ADJUST CENTER DIFFERENTIAL SIDE GEAR THRUST CLEARANCE
a. Install the differential side right gear.
NOTE: Do not install the conical spring washer.
b. Install the center differential case.
c. Install the thrust washer.
d. Align the matchmarks on the ring gear mounting left and right case.
e. Install and torque the twelve bolts.
Torque: 985 kg.cm. (71 ft.lb., 97 N.m)
NOTE: Do not instal the O-ring.
f. Using a caliper, measure the conical spring washer thickness.
g. Using a dial indicator, measure the thrust clearance of center differential case while holding the ring gear mounting case.
Standard Clearance Chart:
h. Referring to the table above, select the thrust washer which will ensure that the backlash is within specification. Try to select a washer of the same size.
i. Remove ring gear mounting right case.
6. INSTALL DIFFERENTIAL SIDE GEAR AND CONICAL SPRING WASHER
NOTE: Be careful not to make a mistake in the direction of the conical spring washer.
7. INSTALL CENTER DIFFERENTIAL CASE
8. INSTALL THRUST WASHER (Previously selected)
9. INSTALL RING GEAR MOUNTING LEFT CASE
a. Coat the new O-ring with ATF, and install it onto the left case.
b. Align the matchmarks on the right and left case.
c. Install and torque the twelve bolts.
Torque: 985 kg.cm. (71 ft.lb., 97 N.m)
CAUTION: Using the soft jaws, hold the left case in a vise.
10. INSTALL OIL PUMP DRIVE GEAR
a. Install the oil pump drive gear.
b. Install the shaft snap ring