REAR DIFFERENTIAL CARRIER ASSEMBLY DISASSEMBLY

PROCEDURE


  1. REMOVE REAR DIFFERENTIAL BREATHER PLUG


    1. A011P8E

      Remove the rear differential breather plug from the rear differential carrier cover.

  2. REMOVE REAR DIFFERENTIAL CARRIER COVER


    1. A011Q14

      Remove the 8 bolts.

    2. A011N3P

      Using a brass bar and hammer, remove the rear differential carrier cover from the rear differential carrier.

      Note


      • Place the brass bar onto the corners of the rear differential carrier cover.

      • Do not damage the sealing surface of the rear differential carrier.

  3. REMOVE REAR DIFFERENTIAL CARRIER STRAIGHT PIN

    Tech Tips

    It is not necessary to remove a rear differential carrier straight pin unless it is being replaced.


    1. A011MDS

      Remove the 2 rear differential carrier straight pins from the rear differential carrier cover.

  4. REMOVE REAR DIFFERENTIAL BREATHER PLUG OIL DEFLECTOR


    1. A011P7J

      Remove the bolt and rear differential breather plug oil deflector from the rear differential carrier cover.

  5. SECURE REAR DIFFERENTIAL CARRIER


    1. A011NNI

      Install the rear differential carrier to an overhaul stand as shown in the illustration.

  6. INSPECT RUNOUT OF DIFFERENTIAL RING GEAR


    1. A011O35

      Set a dial indicator perpendicular to the end of the differential ring gear face.

    2. Rotate the differential ring gear and measure the runout.

      Maximum runout
      0.05 mm (0.00197 in.)

      Tech Tips

      If the runout is more than the maximum, remove the differential ring gear and check the runout of the rear differential case sub-assembly.

  7. INSPECT DIFFERENTIAL RING GEAR BACKLASH


    1. A011P6R

      While holding the rear drive pinion companion flange, rotate the differential ring gear and measure the backlash.

      Backlash
      0.08 to 0.13 mm (0.00315 to 0.00511 in.)

      Tech Tips

      If the backlash is not within the specified range, adjust the backlash or perform repairs as necessary.

  8. INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION


    1. A011MZ0

      Coat 3 or 4 teeth at 3 different positions on the differential ring gear with Prussian blue.

    2. Rotate the differential ring gear in both directions.

    3. Inspect the tooth contact pattern.

      A011NBXC06
      *a Proper Contact *b Heel Contact
      *c Face Contact *d Select an adjusting washer that will shift the drive pinion closer to the ring gear (*b, *c)
      *e Toe Contact *f Flank Contact
      *g Select an adjusting washer that will shift the drive pinion away from the ring gear (*e, *f) - -

      Note

      Check the tooth contact pattern at 4 or more positions around circumference of the differential ring gear.

  9. INSPECT DIFFERENTIAL SIDE GEAR BACKLASH


    1. A011MVT

      Place a dial indicator on the tip of a side gear tooth at a right angle. Hold the pinion gear in the rear differential case sub-assembly and check that the backlash is 0 mm (0 in.).

      If the result is not as specified, replace the rear differential case sub-assembly with a new one.

  10. INSPECT RUNOUT OF DIFFERENTIAL DRIVE PINION


    1. A011O6RC01
      *a 10 mm (0.394 in.)

      Using a dial indicator, measure the runout of the differential drive pinion shaft at a position 10 mm (0.394 in.) away from the end of the shaft.

      Maximum runout
      0.08 mm (0.00315 in.)

      If the runout is more than the maximum, replace the differential drive pinion and differential ring gear.

  11. INSPECT DIFFERENTIAL DRIVE PINION PRELOAD


    1. A011P74E01

      Using SST and a torque wrench, measure the starting torque of the differential drive pinion.

      SST
      09229-55010
      Differential drive pinion preload (at starting)
      1.25 to 1.65 N*m (12.7 to 16.8 kgf*cm, 11.1 to 14.6 in.*lbf)

      Tech Tips


      • The backlash between the differential drive pinion and differential ring gear should allow enough movement of the differential drive pinion to allow this measurement to be performed.

      • Make sure not to include the preload of the differential ring gear (rear differential case sub-assembly) in the measurement of the differential drive pinion preload.

  12. INSPECT TOTAL PRELOAD


    1. A011P74E01

      Using SST and a torque wrench, measure the preload with the teeth of the differential drive pinion and differential ring gear in contact.

      SST
      09229-55010
      Total preload (at starting)
      1.83 to 3.20 N*m (18.7 to 32.6 kgf*cm, 16.2 to 28.3 in.*lbf)

  13. REMOVE REAR DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL


    1. A011MCON06

      Using SST, remove the 2 rear differential side gear shaft oil seals.

      SST
      09308-00010

  14. REMOVE REAR DIFFERENTIAL SIDE GEAR SHAFT SHAFT SNAP RING (for RH Side)


    1. A011NKZC03
      *1 Disc

      Install SST to the rear differential carrier with the 2 bolts (A).

      SST
      09571-50010

    2. Tighten SST bolt (B) until SST disc lightly touches the rear differential case bearing outer race on the differential ring gear tooth side.

    3. A011PP4C07
      *a Turn

      Install a dial indicator to the rear differential carrier.

      Tech Tips

      Set the dial indicator as shown in the illustration.

    4. Tighten SST bolt and alter the shape of the rear differential carrier to create a 0.1 mm (0.00394 in.) clearance between the rear differential case bearing outer race and rear differential side gear shaft snap ring.

      Note

      Observe the dial indicator to ensure that the shape of the rear differential carrier does not change by more than 0.2 mm (0.00787 in.).

      Tech Tips

      A clearance of approximately 0.1 mm (0.00394 in.) between the rear differential case bearing outer race RH and rear differential side gear shaft snap ring is sufficient for the rear differential side gear shaft snap ring to move slightly.

    5. A011PFKN08

      Using SST, remove the rear differential side gear shaft snap ring on the differential ring gear tooth side.

      SST
      09905-00031

      Tech Tips


      • For reassembly purposes, measure the thickness of the rear differential side gear shaft snap ring. Write down the result.

      • Put identification marks on each rear differential side gear shaft snap ring on the back side and tooth side of the ring gear, and keep them separate.

    6. Remove the dial indicator and loosen SST bolt.

      Note

      Do not remove SST.

  15. REMOVE REAR DIFFERENTIAL SIDE GEAR SHAFT SHAFT SNAP RING (for LH Side)


    1. A011OLTN11

      Using SST and a hammer, create a clearance between the rear differential case bearing outer race on the back surface of the differential ring gear and the rear differential side gear shaft snap ring.

      SST
      09608-32010
      09950-70010   ( 09951-07200 )

      Tech Tips

      The clearance is not visible, but tapping SST with a hammer 3 or 4 times should be enough.

    2. A011N80N14

      Using SST, remove the rear differential side gear shaft snap ring on the back surface of the differential ring gear.

      SST
      09905-00031

      Tech Tips


      • For reassembly purposes, measure the thickness of the rear differential side gear shaft snap ring. Write down the result.

      • Put identification marks on each rear differential side gear shaft snap ring on the back side and tooth side of the ring gear, and keep them separate.

  16. REMOVE REAR DIFFERENTIAL CASE BEARING (for LH Side)


    1. A011QELN01

      Tighten SST bolt and push out the rear differential case bearing outer race on the back surface of the differential ring gear.

      SST
      09571-50010

      Note

      Do not drop the rear differential case bearing outer race.

      Tech Tips

      Put identification marks on the rear differential case bearing outer race and rear differential side gear shaft snap ring to show the location for installation (back side or teeth side), or keep the races and snap rings separate so that they can be distinguished.

    2. A011OZV

      Remove the 2 bolts and SST.

  17. REMOVE REAR DIFFERENTIAL CASE BEARING (for RH Side)


    1. A011PFG

      Raise the differential ring gear side of the rear differential case sub-assembly slightly to remove the rear differential case bearing outer race on the differential ring gear tooth side.

      Note

      Do not drop the rear differential case bearing outer race RH.

      Tech Tips

      Put identification marks on the rear differential case bearing outer race and rear differential side gear shaft snap ring to show the location for installation (back side or teeth side), or keep the races and snap rings separate so that they can be distinguished.

  18. REMOVE REAR DIFFERENTIAL CASE SUB-ASSEMBLY


    1. A011PAW

      Remove the rear differential case sub-assembly as shown in the illustration.

      Note

      Do not damage the rear differential case bearing and differential ring gear.

  19. REMOVE REAR DRIVE PINION NUT


    1. A011NYKN06

      Using SST and a hammer, unstake the staked part of the rear drive pinion nut.

      SST
      09930-00010

      Note


      • Be sure to use SST with the tapered surface facing the differential drive pinion.

      • Do not grind the tip of SST with a grinder, etc.

      • Completely loosen the staked part of the rear drive pinion nut when removing it.

      • Do not damage the threads of the differential drive pinion.

    2. A011NDVC03
      *a Turn
      *b Hold

      Using SST to hold the rear drive pinion companion flange, remove the rear drive pinion nut.

      SST
      09229-55010
      09330-00021
      09950-30012   ( 09955-03040 )

      CAUTION:

      Hold the overhaul attachment during the operation.

      Tech Tips

      When securing SST and the companion flange, it is recommended to use M8 X P 1.25 bolts with a length of approximately 40 mm.

  20. REMOVE REAR DRIVE PINION COMPANION FLANGE


    1. A011M89C01
      *a Turn
      *b Hold

      Using SST, remove the rear drive pinion companion flange.

      SST
      09950-30012   ( 09951-03010, 09953-03010, 09954-03010, 09955-03040, 09956-03060 )

      Note

      Apply molybdenum grease to the threads of SST center bolt (09953-03010) before use.

  21. REMOVE REAR DIFFERENTIAL DUST DEFLECTOR

    Tech Tips

    Perform this procedure only when the rear differential dust deflector is damaged.


    1. A011OGQN12

      Using SST and a press, remove the rear differential dust deflector.

      SST
      09950-00020
      09950-60010   ( 09951-00440 )
      09950-70010   ( 09951-07100 )

      Note

      Do not drop the rear drive pinion companion flange.

      Tech Tips

      Be sure to perform this operation while tightening the SST nuts to protect the contact surface of SST and the rear differential dust deflector.

  22. REMOVE REAR DIFFERENTIAL CARRIER OIL SEAL

    Click here

  23. REMOVE REAR DIFFERENTIAL DRIVE PINION OIL SLINGER


    1. A011P4M

      Remove the rear differential drive pinion oil slinger.

  24. REMOVE DIFFERENTIAL DRIVE PINION


    1. A011M6J

      Using a press, remove the differential drive pinion from the rear differential carrier.

      Note

      Do not drop the differential drive pinion.

  25. REMOVE REAR DIFFERENTIAL DRIVE PINION BEARING SPACER


    1. A011P6L

      Remove the rear differential drive pinion bearing spacer from the differential drive pinion.

  26. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING


    1. A011QKL

      Remove the rear drive pinion front tapered roller bearing inner race from the rear differential carrier.

    2. A011MK8C02
      *1 Rear Drive Pinion Front Tapered Roller Bearing Outer Race

      Using a brass bar and hammer, remove the rear drive pinion front tapered roller bearing outer race from the rear differential carrier.

  27. REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING


    1. A011MCWN06

      Using SST and a press, remove the rear drive pinion rear tapered roller bearing inner race from the differential drive pinion.

      SST
      09950-00020

      Note

      Do not drop the differential drive pinion.

      Tech Tips

      If either the differential drive pinion or differential ring gear is damaged, replace both as a set.

    2. A011OGXC02
      *1 Rear Differential Drive Pinion Plate Washer
      *2 Rear Drive Pinion Rear Tapered Roller Bearing Outer Race

      Using a brass bar and hammer, remove the rear drive pinion rear tapered roller bearing outer race from the rear differential carrier.

      Tech Tips

      Set the brass bar onto the concave portion of the differential carrier assembly. Lightly and uniformly tap the bearing and shim to remove them.

    3. Remove the rear differential drive pinion plate washer.

      Tech Tips

      Make a note of the rear differential drive pinion plate washer thickness as a reference for assembly.

  28. REMOVE DIFFERENTIAL RING GEAR


    1. Hold the rear differential case sub-assembly in a vise between aluminum plates.

      Note

      Do not overtighten the vise.

    2. A011P6QC01
      *a Matchmark

      Put matchmarks on the differential ring gear and rear differential case sub-assembly.

    3. Remove the 10 bolts.

    4. Using a plastic-faced hammer, tap on the differential ring gear to remove it from the rear differential case sub-assembly.

      Tech Tips

      Place a cloth on the teeth side of the ring gear to prevent damage.

  29. INSPECT RUNOUT OF REAR DIFFERENTIAL CASE SUB-ASSEMBLY

    Tech Tips

    Perform this procedure only when the runout of the differential ring gear exceeds the specified maximum value.


    1. A011P98

      Insert the rear differential case sub-assembly from the differential ring gear tooth side to install the rear differential case sub-assembly as shown in the illustration.

      Note

      Do not damage the rear differential case bearing.

    2. A011N0SC02
      *a Groove

      Using SST and a hammer, install the rear differential case bearing outer race RH to the differential ring gear tooth side.

      SST
      09608-32010
      09950-70010   ( 09951-07200 )

      Tech Tips

      Tap in the rear differential case bearing outer race RH until half of the rear differential side gear shaft snap ring groove of the rear differential carrier can be seen.

    3. A011PQAN01

      Install SST to the rear differential carrier with the 2 bolts (A).

      SST
      09571-50010
    4. A011PKIC02
      *1 Disc

      Tighten SST bolt (B) until SST disc lightly touches the rear differential case bearing outer race RH.

    5. A011Q4JN10

      Using SST and a hammer, install the rear differential case bearing outer race LH to the differential ring gear back surface side.

      SST
      09608-32010
      09950-70010   ( 09951-07200 )

      Tech Tips

      Tap in the rear differential case bearing outer race LH until it touches the rear differential case bearing inner race roller.

    6. A011N80N15

      Using snap ring pliers, install the rear differential side gear shaft snap ring to the rear differential carrier on the differential ring gear back surface side.

      SST
      09905-00031
    7. A011MIT

      Place a dial indicator on the rear differential case sub-assembly flange surface at a right angle.

    8. Using a dial indicator, measure the rear differential case sub-assembly runout.

      Maximum runout
      0.05 mm (0.00197 in.)

      If the runout is more than the maximum, replace the rear differential case sub-assembly with a new one.

    9. A011N80N15

      Using SST, remove the rear differential side gear shaft snap ring from the differential ring gear back surface side.

      SST
      09905-00031
    10. A011PIDC02
      *a Turn

      Tighten SST bolt to push out the rear differential case bearing outer race LH from the back surface of the differential ring gear.

      SST
      09571-50010

      Note

      Do not drop the differential side bearing outer race LH.

    11. A011O68

      Remove the 2 bolts and SST.

    12. A011OIU

      Raise the differential ring gear side of the rear differential case sub-assembly slightly to remove the differential side bearing outer race RH on the differential ring gear tooth side.

    13. A011NLR

      Remove the rear differential case sub-assembly from the rear differential carrier as shown in the illustration.

      Note

      Do not damage the rear differential case bearing.

  30. REMOVE REAR DIFFERENTIAL CASE BEARING

    Tech Tips

    Perform this procedure only when replacing the rear differential case bearing or rear differential case sub-assembly.


    1. A011QAYC02
      *a Turn
      *b Hold

      Using SST, remove the rear differential case bearing inner races LH and RH from the rear differential case sub-assembly.

      SST
      09950-40011   ( 09951-04020, 09952-04010, 09953-04030, 09954-04010, 09955-04061, 09957-04010, 09958-04011 )
      09950-60010   ( 09951-00350, 09951-00480, 09952-06010 )

      Note


      • Do not deform the bearing cage if the bearing is to be reused.

      • Hook the claws of SST to the rear differential case bearing inner race.

      • Apply molybdenum grease to the threads and tip of SST center bolt (09953-04030) before use.

  31. INSPECT DIFFERENTIAL SIDE GEAR BACKLASH


    1. A011MYS

      Secure the rear differential case sub-assembly in a vise between aluminum plates.

      Note

      Do not overtighten the vise.

    2. Place a dial indicator on the tip of a side gear tooth at a right angle. Hold the pinion gear in the rear differential case sub-assembly and check that the backlash is 0 mm (0 in.).

      If the result is not as specified, replace the rear differential case sub-assembly with a new one.