INSTALL TRANSFER DRIVEN PINION REAR BEARING
Using SST and a press, press the transfer driven pinion rear bearing (outer race) into the transfer case.
Note
Keep the transfer case horizontal using wooden blocks, etc.
Apply gear oil to the transfer driven pinion rear bearing (outer race).
INSTALL TRANSFER OUTPUT SHAFT WASHER
Install the transfer output shaft washer to the transfer case.
Tech Tips
Install the same transfer output shaft washer as the one removed.
Apply gear oil to the transfer output shaft washer.
INSTALL TRANSFER DRIVEN PINION FRONT BEARING
Apply gear oil to the inner surface of the transfer case.
Using SST, install the transfer driven pinion front bearing (outer race) to the transfer case.
| *1 | Transfer Driven Pinion Front Bearing (Outer Race) |
| *a | Turn |
| *b | Hold |
Using SST and a press, press the transfer driven pinion front bearing (inner race) into the driven pinion.
INSTALL DRIVEN PINION
Install the driven pinion to the transfer case.
Install a new transfer pinion bearing spacer and the transfer driven pinion rear bearing (inner race) to the driven pinion.
Tech Tips
Install the transfer pinion bearing spacer with the larger inner diameter facing forward as shown in the illustration.
Using SST, install a new gear nut.
Tech Tips
Use a torque wrench with a fulcrum length of 840 mm (2.76 ft.).
Note
Do not stake the gear nut until the final preload, tooth contact and backlash adjustments are completed.
ADJUST DRIVEN PINION PRELOAD
Using SST and a torque wrench, measure the driven pinion preload.
| Preload (at Starting) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Tech Tips
Use a torque wrench with a fulcrum length of 130 mm (5.12 in.).
If the preload is more than the specification, replace the transfer pinion bearing spacer with a new one.
If the preload is not sufficient, adjust the driven pinion by tightening the gear nut 5° to 10° and measuring the preload until the preload is within the specification.
Even if the tightening torque of the gear nut exceeds the specified torque, if the preload is insufficient, loosen the gear nut once and apply rust preventive oil or hypoid gear oil to the gear nut and to the screw or bearing surface of the driven pinion. Then perform the procedure again. If the tightening torque is less than the specified torque, replace the transfer pinion bearing spacer with a new one and adjust it.
Do not loosen the gear nut to reduce the preload.
INSTALL RING GEAR
| *a | Boiling Water |
Clean the contact surfaces of the ring gear and transfer ring gear mounting case.
Heat the ring gear in boiling water.
Carefully remove the ring gear from the boiling water.
Align the matchmarks and quickly install the ring gear to the transfer ring gear mounting case.
for Seal Lock Bolt:
Apply adhesive to whole threads and seat sections of 10 new bolts.
| Adhesive |
|---|
| Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent |
| *a | Matchmark |
After the moisture on the ring gear has completely evaporated, install the 10 bolts.
Note
Tighten the bolts evenly in a diagonal pattern using several steps.
Tighten the bolts after the ring gear has cooled down sufficiently.
Confirm whether the bolts are precoated (for Seal Lock Bolt) or uncoated (except Seal Lock Bolt) as the tightening torque is different for each type.
In order to ensure proper sealing of the bolts, apply adhesive to the bolts and install them within 10 minutes of adhesive application.
INSTALL RING GEAR MOUNTING CASE BEARING
Using SST and a press, press the ring gear mounting case bearing (inner race) into the transfer ring gear mounting case.
Install the ring gear mounting case bearing (outer race) to the transfer ring gear mounting case.
Apply gear oil to the ring gear mounting case bearing.
Using SST and a press, press the ring gear mounting case bearing (inner race) into the transfer ring gear mounting case.
Install the ring gear mounting case plate washer to the transfer case.
Tech Tips
If replacing the ring gear mounting case plate washer, use one with the same thickness as the one removed.
Using SST and a press, press the ring gear mounting case bearing (outer race) into the transfer case.
Apply gear oil to the ring gear mounting case bearing.
INSTALL TRANSFER RING GEAR MOUNTING CASE
Apply gear oil to the transfer ring gear mounting case.
Install the transfer ring gear mounting case to the transfer case.
INSTALL NO. 1 TRANSFER OUTPUT SHAFT SPACER
| *1 | No. 1 Transfer Output Shaft Spacer |
| *a | Cutout |
| *b | Case Hole |
Align the cutout on the No. 1 transfer output shaft spacer with the transfer case hole to install it as shown in the illustration.
INSTALL NO. 2 TRANSFER RING GEAR MOUNTING CASE WASHER
Using a brass bar and a hammer, install the No. 2 transfer ring gear mounting case washer.
Tech Tips
If replacing the No. 2 transfer ring gear mounting case washer, use one with the same thickness as the one removed.
INSTALL BEARING CAP
Install the bearing cap with the 2 bolts.
INSPECT RING GEAR BACKLASH
Set a dial indicator perpendicular to a ring gear tooth tip. Secure the driven pinion in place and move the ring gear back and forth to measure the backlash.
| Backlash |
|---|
| 0.14 to 0.25 mm (0.00551 to 0.00984 in.) |
Note
Check at least 3 positions on the circumference of the ring gear.
| *1 | Ring Gear Mounting Case Plate Washer |
If the backlash is outside the specified range, select a ring gear mounting case plate washer from the table and install it to meet the specified range.
| Mark | Thickness mm (in.) | Mark | Thickness mm (in.) |
|---|---|---|---|
| 5Q | 1.95 (0.0768) | 7N | 2.67 (0.1051) |
| 5R | 1.97 (0.0776) | 7P | 2.69 (0.1059) |
| 5S | 1.99 (0.0783) | 7Q | 2.71 (0.1067) |
| 5T | 2.01 (0.0791) | 7R | 2.73 (0.1075) |
| 5U | 2.03 (0.0799) | 7S | 2.75 (0.1083) |
| 5V | 2.05 (0.0807) | 7T | 2.77 (0.1091) |
| 5W | 2.07 (0.0815) | 7U | 2.79 (0.1098) |
| 5X | 2.09 (0.0823) | 7V | 2.81 (0.1106) |
| 5Y | 2.11 (0.0831) | 7W | 2.83 (0.1114) |
| 5Z | 2.13 (0.0839) | 7X | 2.85 (0.1122) |
| 6F | 2.15 (0.0846) | 7Y | 2.87 (0.1130) |
| 6G | 2.17 (0.0854) | 7Z | 2.89 (0.1138) |
| 6H | 2.19 (0.0862) | 8F | 2.91 (0.1146) |
| 6J | 2.21 (0.0870) | 8G | 2.93 (0.1154) |
| 6K | 2.23 (0.0878) | 8H | 2.95 (0.1161) |
| 6L | 2.25 (0.0886) | 8J | 2.97 (0.1169) |
| 6M | 2.27 (0.0894) | 8K | 2.99 (0.1177) |
| 6N | 2.29 (0.0902) | 8L | 3.01 (0.1185) |
| 6P | 2.31 (0.0909) | 8M | 3.03 (0.1193) |
| 6Q | 2.33 (0.0917) | 8N | 3.05 (0.1201) |
| 6R | 2.35 (0.0925) | 8P | 3.07 (0.1209) |
| 6S | 2.37 (0.0933) | 8Q | 3.09 (0.1217) |
| 6T | 2.39 (0.0941) | 8R | 3.11 (0.1224) |
| 6U | 2.41 (0.0949) | 8S | 3.13 (0.1232) |
| 6V | 2.43 (0.0957) | 8T | 3.15 (0.1240) |
| 6W | 2.45 (0.0965) | 8U | 3.17 (0.1248) |
| 6X | 2.47 (0.0972) | 8V | 3.19 (0.1256) |
| 6Y | 2.49 (0.0980) | 8W | 3.21 (0.1264) |
| 6Z | 2.51 (0.0988) | 8X | 3.23 (0.1272) |
| 7F | 2.53 (0.0996) | 8Y | 3.25 (0.1280) |
| 7G | 2.55 (0.1004) | 8Z | 3.27 (0.1287) |
| 7H | 2.57 (0.1012) | 9D | 3.29 (0.1295) |
| 7J | 2.59 (0.1020) | 9E | 3.31 (0.1303) |
| 7K | 2.61 (0.1028) | 9F | 3.33 (0.1311) |
| 7L | 2.63 (0.1035) | 9G | 3.35 (0.1319) |
| 7M | 2.65 (0.1043) | 9H | 3.37 (0.1327) |
INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVEN PINION
Coat 3 or 4 teeth at 4 different positions on the ring gear with Prussian blue.
Turn the driven pinion to rotate the ring gear 10 times or more clockwise and 10 times or more counterclockwise.
Rotate the ring gear to inspect the tooth contact pattern.
| *a | Proper Contact | *b | Heel Contact |
| *c | Face Contact | *d | Select a washer that will bring the driven pinion closer to the ring gear |
| *e | Toe Contact | *f | Flank Contact |
| *g | Select a washer that will shift the driven pinion away from the ring gear | - | - |
| *1 | Transfer Output Shaft Washer |
If the tooth contact pattern is not correct, select a new transfer output shaft washer that is thicker or thinner as necessary and recheck.
| Mark | Thickness mm (in.) | Mark | Thickness mm (in.) |
|---|---|---|---|
| ZA | 2.00 (0.0787) | KB | 2.38 (0.0937) |
| ZB | 2.02 (0.0795) | LA | 2.40 (0.0945) |
| ZC | 2.04 (0.0803) | LC | 2.42 (0.0953) |
| ZD | 2.06 (0.0811) | MB | 2.44 (0.0961) |
| ZE | 2.08 (0.0819) | NA | 2.46 (0.0969) |
| AA | 2.10 (0.0827) | NC | 2.48 (0.0976) |
| AC | 2.12 (0.0835) | PB | 2.50 (0.0984) |
| BB | 2.14 (0.0843) | QA | 2.52 (0.0992) |
| CA | 2.16 (0.0850) | QC | 2.54 (0.1000) |
| CC | 2.18 (0.0858) | RA | 2.56 (0.1008) |
| DB | 2.20 (0.0866) | RB | 2.58 (0.1016) |
| EA | 2.22 (0.0874) | RC | 2.60 (0.1024) |
| EC | 2.24 (0.0882) | SA | 2.62 (0.1031) |
| FB | 2.26 (0.0890) | SB | 2.64 (0.1039) |
| GA | 2.28 (0.0898) | SC | 2.66 (0.1047) |
| GC | 2.30 (0.0906) | TA | 2.68 (0.1055) |
| HB | 2.32 (0.0913) | TB | 2.70 (0.1063) |
| JA | 2.34 (0.0921) | TC | 2.72 (0.1071) |
| JC | 2.36 (0.0929) | - | - |
Note
When the washer thickness is changed, readjust the backlash Click here.
INSPECT AND ADJUST TOTAL PRELOAD
Using SST and a torque wrench, measure the total preload.
| Total Preload (at Starting) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Tech Tips
Use a torque wrench with a fulcrum length of 130 mm (5.12 in.).
Turn the driven pinion counterclockwise and clockwise several times.
If the preload is outside the specified range, replace the No. 2 transfer ring gear mounting case washer with one that is thicker or thinner as necessary and recheck.
| *1 | No. 2 Transfer Ring Gear Mounting Case Washer |
| Mark | Thickness | Mark | Thickness |
|---|---|---|---|
| G7 | 2.47 (0.0972) | M7 | 3.47 (0.1366) |
| G8 | 2.49 (0.0980) | M8 | 3.49 (0.1374) |
| G9 | 2.51 (0.0988) | M9 | 3.51 (0.1382) |
| H0 | 2.53 (0.0996) | N0 | 3.53 (0.1390) |
| H1 | 2.55 (0.1004) | N1 | 3.55 (0.1398) |
| H2 | 2.57 (0.1012) | N2 | 3.57 (0.1406) |
| H3 | 2.59 (0.1020) | N3 | 3.59 (0.1413) |
| H4 | 2.61 (0.1028) | N4 | 3.61 (0.1421) |
| H5 | 2.63 (0.1035) | N5 | 3.63 (0.1429) |
| H6 | 2.65 (0.1043) | N6 | 3.65 (0.1437) |
| H7 | 2.67 (0.1051) | N7 | 3.67 (0.1445) |
| H8 | 2.69 (0.1059) | N8 | 3.69 (0.1453) |
| H9 | 2.71 (0.1067) | N9 | 3.71 (0.1461) |
| J0 | 2.73 (0.1075) | P0 | 3.73 (0.1469) |
| J1 | 2.75 (0.1083) | P1 | 3.75 (0.1476) |
| J2 | 2.77 (0.1091) | P2 | 3.77 (0.1484) |
| J3 | 2.79 (0.1098) | P3 | 3.79 (0.1492) |
| J4 | 2.81 (0.1106) | P4 | 3.81 (0.1500) |
| J5 | 2.83 (0.1114) | P5 | 3.83 (0.1508) |
| J6 | 2.85 (0.1122) | P6 | 3.85 (0.1516) |
| J7 | 2.87 (0.1130) | P7 | 3.87 (0.1524) |
| J8 | 2.89 (0.1138) | P8 | 3.89 (0.1531) |
| J9 | 2.91 (0.1146) | P9 | 3.91 (0.1539) |
| K0 | 2.93 (0.1154) | Q0 | 3.93 (0.1547) |
| K1 | 2.95 (0.1161) | Q1 | 3.95 (0.1555) |
| K2 | 2.97 (0.1169) | Q2 | 3.97 (0.1563) |
| K3 | 2.99 (0.1177) | Q3 | 3.99 (0.1571) |
| K4 | 3.01 (0.1185) | Q4 | 4.01 (0.1579) |
| K5 | 3.03 (0.1193) | Q5 | 4.03 (0.1587) |
| K6 | 3.05 (0.1201) | Q6 | 4.05 (0.1594) |
| K7 | 3.07 (0.1209) | Q7 | 4.07 (0.1602) |
| K8 | 3.09 (0.1217) | Q8 | 4.09 (0.1610) |
| K9 | 3.11 (0.1224) | Q9 | 4.11 (0.1618) |
| L0 | 3.13 (0.1232) | R0 | 4.13 (0.1626) |
| L1 | 3.15 (0.1240) | R1 | 4.15 (0.1634) |
| L2 | 3.17 (0.1248) | R2 | 4.17 (0.1642) |
| L3 | 3.19 (0.1256) | R3 | 4.19 (0.1650) |
| L4 | 3.21 (0.1264) | R4 | 4.21 (0.1657) |
| L5 | 3.23 (0.1272) | R5 | 4.23 (0.1665) |
| L6 | 3.25 (0.1280) | R6 | 4.25 (0.1673) |
| L7 | 3.27 (0.1287) | R7 | 4.27 (0.1681) |
| L8 | 3.29 (0.1295) | R8 | 4.29 (0.1689) |
| L9 | 3.31 (0.1303) | R9 | 4.31 (0.1697) |
| M0 | 3.33 (0.1311) | S0 | 4.33 (0.1705) |
| M1 | 3.35 (0.1319) | S1 | 4.35 (0.1713) |
| M2 | 3.37 (0.1327) | S2 | 4.37 (0.1720) |
| M3 | 3.39 (0.1335) | S3 | 4.39 (0.1728) |
| M4 | 3.41 (0.1343) | S4 | 4.41 (0.1736) |
| M5 | 3.43 (0.1350) | S5 | 4.43 (0.1744) |
| M6 | 3.45 (0.1358) | S6 | 4.45 (0.1752) |
Using a chisel and a hammer, stake the gear nut.
INSTALL TRANSFER CASE FRONT OIL SEAL (for RH Side)
Using SST and a hammer, drive a new transfer case front oil seal (for RH side) into the transfer case until it reaches the position shown in the illustration.
| Drive in depth |
|---|
| 33.5 to 34.5 mm (1.319 to 1.358 in.) |
Note
Do not install the transfer case front oil seal (for RH side) at an angle.
Apply a small amount of MP grease to the lip of the transfer case front oil seal (for RH side).
INSTALL TRANSFER CASE FRONT OIL SEAL
Using SST and a hammer, drive a new transfer case front oil seal into the transfer case until it reaches the position in the illustration.
| Drive in depth |
|---|
| 9.5 to 10.5 mm (0.374 to 0.413 in.) |
Apply a small amount of MP grease to the lip of the transfer case front oil seal.
INSTALL TRANSFER CASE REAR OIL SEAL
Using SST and a hammer, drive a new transfer case rear oil seal into the transfer extension housing sub-assembly until it reaches the position shown in the illustration.
| Drive in depth |
|---|
| 1.1 to 1.9 mm (0.0433 to 0.0748 in.) |
Apply a small amount of MP grease to the lip of the transfer case rear oil seal.
INSTALL TRANSFER EXTENSION HOUSING DUST DEFLECTOR
Using SST and a press, press in a new transfer extension housing dust deflector until it contacts the installation surface as shown in the illustration.
INSTALL TRANSFER EXTENSION HOUSING SUB-ASSEMBLY
| *1 | FIPG |
| *a | Seal Width 1.2 mm (0.0472 in.) |
Remove any FIPG material and be careful not to drop oil on the contact surfaces of the transfer extension housing sub-assembly and the transfer case.
Degrease the surfaces with a non-residue solvent.
Apply FIPG to the transfer extension housing sub-assembly.
| FIPG |
|---|
| Toyota Genuine Seal Packing 1281, Three Bond 1281 or equivalent |
Install the transfer extension housing sub-assembly with the 4 bolts to the transfer case.
Note
Assemble the transfer extension housing sub-assembly within 10 minutes of FIPG application.
SEPARATE TRANSFER ASSEMBLY
Remove the transfer assembly from the overhaul attachment.
INSTALL TRANSFER CASE STRAIGHT PIN
Using a plastic hammer, drive the 4 transfer case straight pins into the transfer case positions shown in the illustration.
| *1 | 10.8 to 11.8 mm (0.425 to 0.465 in.) | *2 | 5.7 to 6.7 mm (0.224 to 0.264 in.) |
INSTALL TRANSFER DYNAMIC DAMPER
Install the transfer dynamic damper with the 3 bolts to the transfer extension housing sub-assembly.
INSTALL TRANSFER CASE BREATHER PLUG
Using SST and a hammer, tap in a new transfer case breather plug.
INSTALL BREATHER OIL DEFLECTOR
Install the breather oil deflector with the bolt.
INSTALL NO. 1 TRANSFER CASE COVER
| *1 | FIPG |
| *a | Seal Width 1.2 mm (0.0472 in.) |
Remove any FIPG material and be careful not to drop oil on the contact surfaces of the No. 1 transfer case cover and the transfer case.
Degrease the surfaces with a non-residue solvent.
Apply FIPG to the No. 1 transfer case cover.
| FIPG |
|---|
| Toyota Genuine Seal Packing 1281, Three Bond 1281 or equivalent |
Install the No. 1 transfer case cover with the 6 bolts.
Note
Wait for at least 1 hour after installing the No. 1 transfer case cover before adding transfer oil.
Assemble the No. 1 transfer case cover within 10 minutes of FIPG application.
Install the No. 1 transfer case cover with 2 new bolts.
INSTALL TRANSFER DRAIN PLUG
Install a new gasket to the transfer drain plug.
Install the transfer drain plug to the transfer assembly.
INSTALL NO. 1 TRANSFER CASE PLUG
Install a new gasket to the No. 1 transfer case plug.
Install the No. 1 transfer case plug to the transfer assembly.
INSTALL NO. 2 TRANSFER CASE PLUG
Install a new gasket to the No. 2 transfer case plug.
Install the No. 2 transfer case plug to the transfer assembly.
INSTALL TRANSFER AND TRANSAXLE SETTING STUD BOLT
Install 4 new transfer and transaxle setting stud bolts to the transfer case positions shown in the illustration.
Tech Tips
Install the shorter end of the transfer and transaxle setting stud bolts to the transfer assembly.
| *1 | Transaxle Side | *2 | Transfer Side |
| *3 | 30 mm (1.1811 in.) | *4 | 12 mm (0.4724 in.) |
| *5 | 22 mm (0.8661 in.) | - | - |