REAR DIFFERENTIAL CARRIER ASSEMBLY (for 3UZ-FE) > REASSEMBLY |
| 1. INSTALL DIFFERENTIAL RING GEAR |
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Clean the contact surfaces of differential case and ring gear.
Clean the differential ring gear set bolt hole.
Heat the ring gear approx. 100°C (212°F) in boiling water.
Carefully take the ring gear out of the boiling water.
Hold the differential case in a vise between aluminum plates.
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After the moisture on the ring gear has completely evaporated, quickly install the ring gear to the differential case.
Align the matchmarks on the ring gear and the differential case.
After the ring gear has been cooled sufficiently, install the new 10 ring gear set bolts to which thread lock has been applied.
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Torque the 10 set bolts uniformly, a little at a time.
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Tighten the bolts further by 60° to 90°.
| 2. INSTALL REAR DIFFERENTIAL CASE BEARING |
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Using SST and a press, install the case bearing inner race LH and RH to the differential case.
| 3. INSTALL REAR DRIVE PINION REAR TAPERED ROLLER BEARING |
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Using SST and a press, install the rear drive pinion rear tapered roller bearing inner race to the drive pinion.
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Using SST and a press, install the rear drive pinion rear tapered roller bearing outer race and plate washer.
| 4. INSTALL REAR DRIVE PINION FRONT TAPERED ROLLER BEARING |
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Using SST and a press, install the rear drive pinion front tapered roller bearing outer race.
| 5. INSTALL DIFFERENTIAL DRIVE PINION |
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Using SST and a press, install the differential drive pinion.
| 6. INSTALL REAR DIFFERENTIAL DRIVE PINION OIL SLINGER |
Install the drive pinion oil slinger.
| 7. ADJUST DIFFERENTIAL DRIVE PINION PRELOAD |
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Using SST, install the companion flange.
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Coat the threads of the drive pinion nut with hypoid gear oil LSD.
Using SST to hold the flange, torque the drive pinion nut.
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Turn the bearing clockwise and counterclockwise several times to stabilize it.
Using SST and a torque wrench, measure the preload.
| 8. INSTALL REAR DIFFERENTIAL CASE ASSEMBLY |
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Insert the differential case from the ring gear tooth side to install.
| 9. INSTALL REAR DIFFERENTIAL CASE BEARING |
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Using SST and a hammer, install the ring gear tooth side case bearing outer race.
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Install SST to the differential carrier.
Tighten the SST bolt until the SST disc lightly touches the case bearing outer race.
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Using SST and a hammer, install the ring gear back surfaces side case bearing outer race.
| 10. INSTALL REAR DIFFERENTIAL SIDE GEAR SHAFT SNAP RING |
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Using snap ring pliers, install the thinnest side gear shaft snap ring on the back surface of the ring gear.
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Install a dial indicator to the differential carrier.
Tighten the SST bolt to alter the differential carrier's shape by approximately 0.1 mm (0.004 in.).
Turn the ring gear clockwise and counterclockwise several times.
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Using a dial indicator, measure the backlash of the ring gear at 3 positions.
Loosen the SST bolt and separate the SST disc from the case bearing outer race on the ring gear tooth side.
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Using SST and a hammer, create a clearance between the side gear shaft snap ring on the ring gear back surfaces side and case bearing outer race.
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Using snap ring pliers, remove the side gear shaft snap ring on the ring gear back surfaces side.
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Using snap ring pliers, install a side gear shaft snap ring with a different thickness.
| Thickness mm (in.) | Thickness mm (in.) | Thickness mm (in.) |
| 3.66 (0.1441) | 3.92 (0.1543) | 4.18 (0.1646) |
| 3.68 (0.1449) | 3.94 (0.1551) | 4.20 (0.1654) |
| 3.70 (0.1457) | 3.96 (0.1559) | 4.22 (0.1661) |
| 3.72 (0.1465) | 3.98 (0.1567) | 4.24 (0.1669) |
| 3.74 (0.1472) | 4.00 (0.1575) | 4.26 (0.1677) |
| 3.76 (0.1480) | 4.02 (0.1583) | 4.28 (0.1685) |
| 3.78 (0.1488) | 4.04 (0.1591) | 4.30 (0.1693) |
| 3.80 (0.1496) | 4.06 (0.1598) | 4.32 (0.1701) |
| 3.82 (0.1503) | 4.08 (0.1606) | 4.34 (0.1709) |
| 3.84 (0.1512) | 4.10 (0.1614) | 4.36 (0.1717) |
| 3.86 (0.1520) | 4.12 (0.1622) | 4.38 (0.1724) |
| 3.88 (0.1528) | 4.14 (0.1630) | 4.40 (0.1732) |
| 3.90 (0.1535) | 4.16 (0.1638) | 4.42 (0.1740) |
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Using a plastic hammer, lightly tap the ring gear tooth side of the differential carrier.
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Install a dial indicator to the differential carrier.
Tighten the SST bolt to alter the differential carrier's shape approximately 0.1 mm (0.004 in.).
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Using a dial indicator, measure the backlash of the ring gear at 3 positions.
If the backlash is not within the specified range, replace the side gear shaft snap ring on the back surface of the ring gear with one of a different thickness.
| 11. ADJUST DIFFERENTIAL RING GEAR BACKLASH |
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Install a dial indicator to the differential carrier.
Tighten the SST bolt to alter the differential carrier's shape by approximately 0.1 mm (0.004 in.).
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Using snap ring pliers, install the thinnest side gear shaft snap ring on the ring gear tooth side.
Remove the dial indicator and loosen the bolt until the SST disc is separated from the case bearing outer race.
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Using a plastic hammer, lightly tap the ring gear tooth side of the differential carrier.
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Using a dial indicator, measure the backlash of the ring gear at 3 positions. If even one backlash reading is smaller than the specified value, adjust the differential ring gear backlash by replacing the side gear shaft snap ring on the ring gear tooth side with a thicker one.
Loosen the SST bolt and separate the SST disc from the case bearing outer race on the ring gear tooth side.
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Using SST and a hammer, create a clearance between the side gear shaft snap ring on the back surface of the ring gear and case bearing outer race.
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Using snap ring pliers, remove the side gear shaft snap ring on the back surface of the ring gear.
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Using snap ring pliers, install a side gear shaft snap ring with a different thickness.
| Thickness mm (in.) | Thickness mm (in.) | Thickness mm (in.) |
| 3.66 (0.1441) | 3.92 (0.1543) | 4.18 (0.1646) |
| 3.68 (0.1449) | 3.94 (0.1551) | 4.20 (0.1654) |
| 3.70 (0.1457) | 3.96 (0.1559) | 4.22 (0.1661) |
| 3.72 (0.1465) | 3.98 (0.1567) | 4.24 (0.1669) |
| 3.74 (0.1472) | 4.00 (0.1575) | 4.26 (0.1677) |
| 3.76 (0.1480) | 4.02 (0.1583) | 4.28 (0.1685) |
| 3.78 (0.1488) | 4.04 (0.1591) | 4.30 (0.1693) |
| 3.80 (0.1496) | 4.06 (0.1598) | 4.32 (0.1701) |
| 3.82 (0.1503) | 4.08 (0.1606) | 4.34 (0.1709) |
| 3.84 (0.1512) | 4.10 (0.1614) | 4.36 (0.1717) |
| 3.86 (0.1520) | 4.12 (0.1622) | 4.38 (0.1724) |
| 3.88 (0.1528) | 4.14 (0.1630) | 4.40 (0.1732) |
| 3.90 (0.1535) | 4.16 (0.1638) | 4.42 (0.1740) |
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Using a plastic hammer, lightly tap the ring gear tooth side of the differential carrier.
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Check the backlash around the ring gear. If even one backlash reading is smaller than the specified value, adjust the differential ring gear backlash by replacing the side gear shaft snap ring on the ring gear tooth side with a thicker one.
| 12. ADJUST TOTAL PRELOAD |
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Using SST and a torque wrench, measure the preload with the teeth of the drive pinion and ring gear in contact.
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Set a dial indicator to the end of the differential ring gear face.
While holding the rear drive pinion companion flange rear, rotate the ring gear and measure the backlash.
Recheck the total preload.
| 13. INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION |
Coat 3 or 4 teeth at the 3 different positions on the ring gear with red lead primer.
Rotate the ring gear in both directions.
Inspect the tooth contact pattern.

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If the teeth are not contacting properly, use the following table to select a proper plate washer for correction.
| Thickness mm (in.) | No. | Thickness mm (in.) | No. | Thickness mm (in.) | No. |
| 1.87 (0.0736) | 87 | 2.01 (0.0791) | 01 | 2.15 (0.0846) | 15 |
| 1.88 (0.0740) | 88 | 2.02 (0.0795) | 02 | 2.16 (0.0850) | 16 |
| 1.89 (0.0744) | 89 | 2.03 (0.0799) | 03 | 2.17 (0.0854) | 17 |
| 1.90 (0.0748) | 90 | 2.04 (0.0803) | 04 | 2.18 (0.0858) | 18 |
| 1.91 (0.0752) | 91 | 2.05 (0.0807) | 05 | 2.19 (0.0862) | 19 |
| 1.92 (0.0756) | 92 | 2.06 (0.0811) | 06 | 2.20 (0.0866) | 20 |
| 1.93 (0.0760) | 93 | 2.07 (0.0815) | 07 | 2.21 (0.0870) | 21 |
| 1.94 (0.0764) | 94 | 2.08 (0.0819) | 08 | 2.22 (0.0874) | 22 |
| 1.95 (0.0768) | 95 | 2.09 (0.0823) | 09 | 2.23 (0.0878) | 23 |
| 1.96 (0.0772) | 96 | 2.10 (0.0827) | 10 | 2.24 (0.0882) | 24 |
| 1.97 (0.0776) | 97 | 2.11 (0.0831) | 11 | 2.25 (0.0886) | 25 |
| 1.98 (0.0780) | 98 | 2.12 (0.0835) | 12 | 2.26 (0.0890) | 26 |
| 1.99 (0.0783) | 99 | 2.13 (0.0839) | 13 | 2.27 (0.0894) | 27 |
| 2.00 (0.0787) | 00 | 2.14 (0.0843) | 14 | 2.28 (0.0898) | 28 |
| 14. REMOVE REAR DIFFERENTIAL SIDE GEAR SHAFT SNAP RING |
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Install the SST to the rear differential carrier.
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Install a dial indicator to the rear differential carrier.
Tighten the SST bolt and alter the differential carrier's shape to create a 0.1 mm (0.004 in.) clearance between the case bearing outer race and side gear shaft snap ring.
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Using snap ring pliers, remove the side gear shaft snap ring on the ring gear tooth side.
Remove the dial indicator and loosen the SST bolt.
| 15. REMOVE REAR DIFFERENTIAL SIDE GEAR SHAFT SNAP RING |
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Using SST and a hammer, create a clearance between the case bearing outer race on the ring gear and side gear shaft snap ring.
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Using snap ring pliers, remove the side gear shaft snap ring on the ring gear back surfaces side.
| 16. REMOVE REAR DIFFERENTIAL CASE BEARING |
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Tighten the SST bolt and push out the case bearing outer race on the ring gear back surfaces side.
Remove the SST.
| 17. REMOVE REAR DIFFERENTIAL CASE BEARING |
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Raise the ring gear side of the differential case slightly to remove the ring gear tooth side case bearing outer race.
| 18. REMOVE REAR DIFFERENTIAL CASE ASSEMBLY |
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Remove rear differential case assembly.
| 19. REMOVE REAR DRIVE PINION NUT |
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Using SST to hold the flange, remove the drive pinion nut.
| 20. REMOVE REAR DRIVE PINION COMPANION FLANGE |
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Using SST, remove the companion flange.
| 21. REMOVE REAR DIFFERENTIAL DRIVE PINION OIL SLINGER |
Remove the differential drive pinion oil slinger.
| 22. REMOVE DIFFERENTIAL DRIVE PINION |
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Using a press, remove the drive pinion from the differential carrier.
| 23. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING |
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Remove the rear drive pinion front tapered roller bearing from the differential carrier.
| 24. INSTALL REAR DIFFERENTIAL DRIVE PINION BEARING SPACER |
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Install a new drive pinion bearing spacer to the drive pinion.
| 25. INSTALL DIFFERENTIAL DRIVE PINION |
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Using SST and a press, install the differential drive pinion to the differential carrier.
| 26. INSTALL REAR DIFFERENTIAL DRIVE PINION OIL SLINGER |
Install the differential drive pinion oil slinger to the differential drive pinion.
| 27. INSTALL REAR DIFFERENTIAL DUST DEFLECTOR |
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Using SST and a press, insert a new dust deflector into the companion flange.
| 28. INSTALL REAR DIFFERENTIAL CARRIER OIL SEAL |
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Using SST and a hammer, install a new oil seal.
Apply MP grease to the oil seal lip.
| 29. INSTALL REAR DRIVE PINION COMPANION FLANGE |
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Using SST, install the companion flange to the drive pinion.
Coat the threads of a new drive pinion nut with hypoid gear oil LSD.
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Use SST to hold the flange and torque the drive pinion nut.
| 30. ADJUST DIFFERENTIAL DRIVE PINION PRELOAD |
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Using SST and a torque wrench, measure the preload.
| 31. INSTALL REAR DIFFERENTIAL CASE ASSEMBLY |
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Insert the differential case from the ring gear tooth side.
| 32. INSTALL REAR DIFFERENTIAL CASE BEARING |
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Using SST and a hammer, install the ring gear tooth side case bearing outer race.
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Install SST to the differential carrier.
Tighten the SST bolt until the SST disc lightly touches the case bearing outer race.
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Using SST and a hammer, install the ring gear back surface side case bearing outer race.
| 33. INSTALL REAR DIFFERENTIAL SIDE GEAR SHAFT SNAP RING |
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Using snap ring pliers, install the side gear shaft snap ring in the differential carrier on the ring gear back surface side.
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Set a dial indicator on the differential carrier.
Tighten the SST bolt to alter the differential carrier's shape.
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Using snap ring pliers, install the side gear shaft snap ring on the ring gear tooth side.
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Remove the dial indicator, tap the differential carrier on the ring gear tooth side using a plastic hammer to stabilize the case bearing.
| 34. INSPECT RUNOUT OF DIFFERENTIAL DRIVE PINION |
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Using a dial indicator, measure the runout of the drive pinion shaft at a position 10 mm (0.39 in.) away from the end of the shaft.
| 35. INSTALL REAR DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL |
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Using SST and a hammer, install 2 new oil seals.
Apply MP grease to the oil seal lips.
| 36. INSPECT TOTAL PRELOAD |
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Using SST and a torque wrench, measure the preload with the teeth of the drive pinion and ring gear in contact.
| 37. INSTALL REAR DRIVE PINION NUT |
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Using a chisel and a hammer, stake the drive pinion nut.
| 38. REMOVE REAR DIFFERENTIAL CARRIER |
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Remove the differential carrier from the overhaul attachment.
| 39. INSTALL REAR DIFFERENTIAL BREATHER PLUG OIL DEFLECTOR |
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Clean the seal packing attached on the differential carrier and carrier cover using a scraper and wire brush. Then remove the oil with white gasoline or equivalent.
Install the rear differential breather plug oil deflector to the rear differential carrier cover.
| 40. INSTALL REAR DIFFERENTIAL CARRIER COVER |
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Apply FIPG to the differential carrier at the position shown in the illustration.
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Install the differential carrier cover with the 8 bolts.
| 41. INSTALL REAR DIFFERENTIAL CARRIER COVER BREATHER PLUG |
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Install the breather plug to the carrier cover.
| 42. INSTALL REAR DIFFERENTIAL DRAIN PLUG |
Using a hexagon wrench (10 mm), install the differential drain plug with a new gasket.
| 43. INSTALL NO.1 REAR DIFFERENTIAL MOUNT CUSHION |
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Using SST, install a new No.1 rear differential mount cushion.
| 44. INSTALL NO.2 REAR DIFFERENTIAL MOUNT CUSHION |
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Using SST, install a new No.2 rear differential mount cushion.