DIFFERENTIAL CARRIER ASSEMBLY(for LSD) INSPECTION

PROCEDURE


  1. INSPECT RUNOUT OF DIFFERENTIAL RING GEAR


    1. A001DO3

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

    2. Rotate the ring gear and measure the backlash.

      Maximum runout
      0.05 mm (0.00197 in.)

      If the runout is more than the specified maximum value, remove the ring gear and check the runout of the differential case.

  2. INSPECT DIFFERENTIAL RING GEAR BACKLASH


    1. A001CBF

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

      Backlash
      0.08 to 0.13 mm (0.00315 to 0.00512 in.)

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

  3. INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION


    1. A001ATY

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

    2. Rotate the ring gear in both directions.

    3. Inspect the tooth contact pattern.

      A0019FCE01
      Text in Illustration
      *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 to the ring gear (*e, *f) - -
    4. A0018V6E05
      Text in Illustration
      *1 Rear Differential Drive Pinion Plate Washer

      If the teeth are not contacting properly, use the following table to select a proper plate washer for correction.

      Tech Tips


      • If the contact pattern is face contact or flank contact, tooth contact may be adjustable while keeping the backlash within the specified range.

      • If the thickness of the drive pinion washer has been changed, adjust the backlash and measure the total preload.

      Washer Thickness
      Thickness No. Thickness No. Thickness No.
      1.87 mm (0.0736 in.) 87 2.01 mm (0.0791 in.) 01 2.15 mm (0.0846 in.) 15
      1.88 mm (0.0740 in.) 88 2.02 mm (0.0795 in.) 02 2.16 mm (0.0850 in.) 16
      1.89 mm (0.0744 in.) 89 2.03 mm (0.0799 in.) 03 2.17 mm (0.0854 in.) 17
      1.90 mm (0.0748 in.) 90 2.04 mm (0.0803 in.) 04 2.18 mm (0.0858 in.) 18
      1.91 mm (0.0752 in.) 91 2.05 mm (0.0807 in.) 05 2.19 mm (0.0862 in.) 19
      1.92 mm (0.0756 in.) 92 2.06 mm (0.0811 in.) 06 2.20 mm (0.0866 in.) 20
      1.93 mm (0.0760 in.) 93 2.07 mm (0.0815 in.) 07 2.21 mm (0.0870 in.) 21
      1.94 mm (0.0764 in.) 94 2.08 mm (0.0819 in.) 08 2.22 mm (0.0874 in.) 22
      1.95 mm (0.0768 in.) 95 2.09 mm (0.0823 in.) 09 2.23 mm (0.0878 in.) 23
      1.96 mm (0.0772 in.) 96 2.10 mm (0.0827 in.) 10 2.24 mm (0.0882 in.) 24
      1.97 mm (0.0776 in.) 97 2.11 mm (0.0831 in.) 11 2.25 mm (0.0886 in.) 25
      1.98 mm (0.0780 in.) 98 2.12 mm (0.0835 in.) 12 2.26 mm (0.0890 in.) 26
      1.99 mm (0.0783 in.) 99 2.13 mm (0.0839 in.) 13 2.27 mm (0.0894 in.) 27
      2.00 mm (0.0787 in.) 00 2.14 mm (0.0843 in.) 14 2.28 mm (0.0898 in.) 28

  4. INSPECT RUNOUT OF DIFFERENTIAL DRIVE PINION


    1. A001B2I

      Using a dial indicator, measure the runout of the 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 drive pinion and ring gear.

  5. INSPECT DIFFERENTIAL DRIVE PINION PRELOAD


    1. A0019E3E01

      Using SST and a torque wrench, measure the starting torque of the drive pinion. The backlash between the drive pinion and ring gear should allow enough movement of the drive pinion to allow this measurement to be performed. Make sure not to include the preload of the ring gear (differential case) in the measurement of the drive pinion preload.

      SST
      09229-55010
      Drive pinion preload (at starting)
      1.25 to 1.65 N*m (13 to 16 kgf*cm, 12 to 14 in.*lbf)

      If the preload is not within the specified range, adjust the rear differential drive pinion preload or repair as necessary.

  6. INSPECT TOTAL PRELOAD


    1. A0019E3E01

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

      SST
      09229-55010
      Total preload (at starting)
      Item Specified Condition
      New bearing 1.91 to 3.51 N*m (20 to 35 kgf*cm, 17 to 31 in.*lbf)
      Reused bearing 1.74 to 2.96 N*m (18 to 30 kgf*cm, 16 to 26 in.*lbf)

  7. 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. A001EM6

      Install the differential case to the differential carrier.

      Note

      Do not damage the case bearing.

    2. A001DR1E04
      Text in Illustration
      *a Groove

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

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

      Tech Tips

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

    3. A001BU4E03
      Text in Illustration
      *1 Disc

      Install SST to the differential carrier with the 2 bolts.

      SST
      09571-50010

    4. Tighten SST bolt (A) until SST disc lightly touches the differential side bearing outer race RH.

    5. A001EZVE01

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

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

      Tech Tips

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

    6. A001EIQ

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

    7. Place a dial indicator on the differential case flange surface at a right angle.

    8. A001BVY

      Using a dial indicator, measure the differential case runout.

      Maximum runout
      0.04 mm (0.00157 in.)

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

    9. A001EIQ

      Using snap ring pliers, remove the side gear shaft snap ring on the ring gear back surface side.

    10. A001A1TE03
      Text in Illustration
      *a Turn

      Tighten SST bolt to push out the ring gear back surface side differential side bearing outer race LH.

      Note

      Do not drop the differential side bearing outer race LH.

    11. A001BK4

      Remove the 2 bolts and SST.

    12. A001ASO

      Raise the ring gear side of the differential case slightly to remove the ring gear tooth side differential side bearing outer race RH.

    13. A001EYY

      Remove the differential case from the differential carrier as shown in the illustration.

      Note

      Do not damage the case bearing.