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Home >> Lexus >> 2012 >> IS F V8-5.0L (2UR-GSE) >> Repair and Diagnosis >> Transmission and Drivetrain >> Differential Assembly >> Differential Carrier >> Service and Repair >> Overhaul >> Disassembly

Disassembly





AXLE AND DIFFERENTIAL: REAR DIFFERENTIAL CARRIER ASSEMBLY: DISASSEMBLY

1. REMOVE REAR DIFFERENTIAL BREATHER PLUG

(a) Remove the breather plug from the differential carrier cover.





2. REMOVE REAR DIFFERENTIAL CARRIER COVER

(a) Remove the 8 bolts from the differential carrier cover.





(b) Using a brass bar and a hammer, remove the differential carrier cover from the differential carrier.





NOTICE:
* Place the brass bar onto the corners of the carrier cover.
* Do not damage the sealing surface of the differential carrier.

3. REMOVE REAR DIFFERENTIAL CARRIER STRAIGHT PIN

(a) Remove the 2 rear differential carrier straight pins.

4. REMOVE REAR DIFFERENTIAL BREATHER PLUG OIL DEFLECTOR

(a) Remove the bolt and oil deflector from the differential carrier cover.





5. SECURE REAR DIFFERENTIAL CARRIER

(a) Set the differential carrier to the overhaul stand, etc., as shown in the illustration.





6. INSPECT RUNOUT OF DIFFERENTIAL RING GEAR Testing and Inspection

7. INSPECT DIFFERENTIAL RING GEAR BACKLASH Testing and Inspection

8. INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION Testing and Inspection

9. INSPECT RUNOUT OF DIFFERENTIAL DRIVE PINION Testing and Inspection

10. INSPECT DIFFERENTIAL DRIVE PINION PRELOAD Testing and Inspection

11. INSPECT TOTAL PRELOAD Testing and Inspection

12. REMOVE REAR DIFFERENTIAL SIDE GEAR SHAFT OIL SEAL

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





SST : 09308-00010

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

(a) Install SST to the differential carrier.





SST : 09571-50010

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

(c) Install a dial indicator to the rear differential carrier.





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

NOTICE:
Observe the dial indicator to ensure that the clearance does not change more than 0.2 mm (0.00787 in.).

HINT
* Set the dial indicator to the rearmost position (upper side in the illustration) of the area around where the side gear shaft oil seal is tapped in.
* Approximately 0.1 mm (0.00394 in.) clearance between the differential side bearing outer race RH and the side gear shaft snap ring is sufficient for the washer to move slightly.

(e) Using snap ring pliers, remove the side gear shaft snap ring on the ring gear tooth side.





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

(f) Remove the dial indicator and loosen the SST bolt.

NOTICE:
Do not remove SST.

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

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





SST : 09608-32010

SST : 09950-70010

09951-07200

HINT
The clearance is not visible, but tapping SST with a hammer three or four times should be enough.

(b) Using snap ring pliers, remove the side gear shaft snap ring on the back surface of the ring gear.





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

15. REMOVE DIFFERENTIAL SIDE BEARING OUTER RACE LH

(a) Tighten the SST bolt and push out the differential side bearing outer race LH on the back surface of the ring gear.





SST : 09571-50010

NOTICE:
Do not drop the differential side bearing outer race LH.

(b) Remove the 2 bolts and SST.





16. REMOVE DIFFERENTIAL SIDE BEARING OUTER RACE RH

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





HINT
For reassembly purposes, take note of the installation position of the differential side bearing outer race and the side gear shaft snap ring before removing the differential side bearing outer race.

17. REMOVE REAR DIFFERENTIAL CASE SUB-ASSEMBLY

(a) Remove the rear differential case sub-assembly.





NOTICE:
Do not damage the case bearing.

18. REMOVE REAR DRIVE PINION NUT

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





SST : 09930-00010

NOTICE:
* Be sure to use SST with the tapered surface facing the shaft.
* Do not grind the tip of SST with a grinder, etc.
* Completely loosen the staked part of the nut when removing it.
* Do not damage the threads of the drive pinion.

(b) Using SST to hold the flange, remove the drive pinion nut.





SST : 09229-55010

SST : 09330-00021

SST : 09950-30012

09955-03040

19. REMOVE REAR DRIVE PINION COMPANION FLANGE

(a) Using SST, remove the companion flange.





SST : 09950-30012

09951-03010

09953-03010

09954-03010

09955-03040

09956-03060

NOTICE:
Apply grease to the threads and tip of the SST center bolt before use.

20. REMOVE REAR DIFFERENTIAL DUST DEFLECTOR

HINT
Perform this procedure only when the dust deflector is damaged.

(a) Using SST and a press, remove the dust deflector.





SST : 09950-00020

SST : 09950-60010

09951-00440

SST : 09950-70010

09951-07100

21. REMOVE REAR DIFFERENTIAL CARRIER OIL SEAL Replacement

22. REMOVE REAR DIFFERENTIAL DRIVE PINION OIL SLINGER

(a) Remove the drive pinion oil slinger.





23. REMOVE DIFFERENTIAL DRIVE PINION

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





NOTICE:
Do not drop the drive pinion.

24. REMOVE REAR DIFFERENTIAL DRIVE PINION BEARING SPACER

(a) Remove the rear differential drive pinion bearing spacer from the differential drive pinion.





25. REMOVE REAR DRIVE PINION FRONT TAPERED ROLLER BEARING

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





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





26. REMOVE REAR DRIVE PINION REAR TAPERED ROLLER BEARING

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





SST : 09950-00020

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

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





(c) Remove the plate washer.

27. REMOVE DIFFERENTIAL RING GEAR

(a) Put matchmarks on the ring gear and differential case.





(b) Remove the 10 ring gear set bolts.

(c) Using a plastic hammer, tap on the ring gear to separate it from the differential case.





NOTICE:
Do not damage the ring gear.

28. INSPECT RUNOUT OF REAR DIFFERENTIAL CASE SUB-ASSEMBLY Testing and Inspection

29. REMOVE REAR DIFFERENTIAL CASE BEARING

HINT
Perform this procedure only when replacing the case bearing or differential case.

(a) Using SST, remove the case bearing inner races LH and RH from the differential case.





SST : 09950-40011

09951-04020

09952-04010

09953-04030

09954-04010

09955-04061

09957-04010

09958-04011

SST : 09950-60010

09951-00350

09951-00480

09952-06010

NOTICE:
* Do not deform the bearing cage if the bearing is to be reused.
* Disengage the SST claw from the dent of the differential case to the bearing inner race.
* Apply grease to the threads and tip of the SST center bolt before use.
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