Tools Required

Important: Service replacement assemblies supplied for the 2005 SRX in 2007 and later may be a BW 4479 transfer case. Refer to Transfer Case Description and Operation and the 2006 SRX Transfer Case Unit Repair Manual.

1. Remove the bolts (16) and the dampener (300), some models.



2. Remove the drain plug (8) and the fill plug (6). Ensure all transfer case fluid is drained out of the transfer case.




Important: To prevent thread damage, clean exposed bolt threads before removing bolts.

3. Remove the 17 case attaching bolts (11).

Notice: Refer to Machined Surface Damage Notice in the Preface section.




4. Using a screwdriver at the pry points located on the case (1) and cover (2), pry the case (1) and cover (2) apart.



5. Separate the case (1) and cover (2).
6. Remove the alignment dowel (3) from the case, if necessary.



7. Remove the chain snubber.



8. Install 1 plate of the DT-47752 perpendicular to the chain and rotate 180 degrees.



9. Install the second plate perpendicular to the chain and secure with the short plate bolts.



10. Install the DT-47752-2 (2) onto the front output shaft (112).
11. Using the long bolts and washers from DT-47752 , install the J 8433  (1). Tighten evenly so the puller remains parallel to the plates.




Notice: Failure to support the input shaft and carrier during removal may bind and damage the chain.

12. Install DT-47752-3 into the input shaft.
13. Using an impact wrench, tighten the forcing screw of the DT-47752-2 in order to remove the sprockets, chain and carrier assembly.



14. Remove the J 8433  (1) and the DT-47752-2 (2).




Important: If the chain and sprockets are to be used again, note the position of the blue chain link, in or out.

15. Remove the lower sprocket (112), chain (109) and carrier (111) as an assembly.



16. Remove the DT-47752 from the case.



17. Remove the snap ring (114).
18. Push the front output shaft (112) from the case (1).



19. Remove the vent baffle bolt (9) and baffle (10) from the case (1).

Notice: Refer to Transfer Case Seal Removal Notice in the Preface section.




20. Using a hammer and a suitable driver, remove the front output seal (13) and input seal (14) from the case (1).




Important: Only remove the bearings if they are to be replaced.

21. Using a hammer and a suitable punch, remove the front output bearing (113) and input bearing (117) if they are to be replaced.



22. If required, remove the vent (15) and discard.
23. Replace it with a NEW vent.



24. Remove the thrust washer (100) from the carrier (111).



25. Using a press, remove the input shaft assembly (118, 107 and 110) from the carrier (111).




Important: 

•	The carrier assembly (111) must be installed with the thrust washer and groove around the splines toward the output shaft. Reversing this will cause a mis-build and a 60/40 torque split on BW 4479 models.

•	The BW 4476 carrier has pinion gears of equal size (1).

•	The BW 4479 carrier has stepped pinion gears of unequal size (2).

26. Note the direction of the carrier assembly (111). The groove around the splines for 50/50 and 40/60 torque ratios face toward the washer and output shaft.



27. Using the J 22888-20A  (1) and the J 8107-2  (2), remove the rear sun gear (101) from the rear output shaft.



28. Using snap ring pliers, remove the snap ring (102) from the output shaft (106).
29. Push the output shaft (106) from the cover (2).

Notice: Refer to Transfer Case Seal Removal Notice in the Preface section.

Notice: Refer to Transfer Case Bearing Removal Notice in the Preface section.




30. Using a hammer and a suitable punch, from inside the cover, drive out the rear output seal (7) and the outside output bearing (104).

Notice: Refer to Transfer Case Bearing Removal Notice in the Preface section.




31. Using a hammer and a suitable punch, from outside the cover (2), inside the output shaft bore, drive out the inner output shaft bearing (103).

Notice: Refer to Transfer Case Bearing Removal Notice in the Preface section.




32. Using the J-2619-A  (1) and the J 29369-1  (2), remove the front output cover bearing (116) from the cover.