Front Case and Rear Case

1. Remove drain plug and filler plug.
2. Remove mainshaft oil seal from front case, using a flat-bladed screwdriver.
   CAUTION: Be careful not to damage the front case and mainshaft.
   Fig 1: Removing Mainshaft Oil Seal From Front Case

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Remove front oil seal from front case, using a flat-bladed screwdriver.
   CAUTION: Be careful not to damage the front case and front drive shaft.
4. Remove self-lock nut.
   Fig 2: Removing Front Oil Seal From Front Case

   Courtesy of NISSAN MOTOR CO., U.S.A.
5. Put a matching mark on the end of mainshaft. The mark should be in line with the mark on the companion flange.
   CAUTION: For matching mark, use paint. Do not damage mainshaft.
   NOTE: The figure shows VQ35HR models.
   Fig 3: Identifying Mainshaft Matching Mark And Mark Of Companion Flange

   Courtesy of NISSAN MOTOR CO., U.S.A.
6. Remove companion flange, using a puller.
   CAUTION: Be careful not to damage the companion flange.
   • VQ35HR models
     Fig 4: Removing Companion Flange Using Pullers (VQ35HR Models)

     Courtesy of NISSAN MOTOR CO., U.S.A.
   • VK45DE models
     Fig 5: Removing Companion Flange Using Pullers (VK45DE Models)

     Courtesy of NISSAN MOTOR CO., U.S.A.
7. Remove rear oil seal from rear case, using the puller.

   Tool number : KV381054S0 (J-34286) 

   CAUTION: Be careful not to damage the rear case.
   Fig 6: Removing Rear Oil Seal From Rear Case

   Courtesy of NISSAN MOTOR CO., U.S.A.
8. Remove spacer from mainshaft.
   Fig 7: Identifying Mainshaft Spacer

   Courtesy of NISSAN MOTOR CO., U.S.A.
9. Remove front case and rear case fixing bolts, then remove harness bracket.
   FRONT AND REAR CASE FIXING BOLTS REFERENCE CHART
   
   

   Bolts symbol	Quantity	Bolt length "l  " mm (in)
   A	11	42 (1.65)
   B	1	162 (6.38)
   C	1	97 (3.82)
   TORX bolt	1	40 (1.57)

   Fig 8: Identifying Front Case And Rear Case Fixing Bolts

   Courtesy of NISSAN MOTOR CO., U.S.A.
10. Separate front case and rear case. Then, remove front case by levering it up with a tire lever or the like.
    CAUTION: Be careful not to damage the mating surface.
    Fig 9: Separating Front And Rear Case

    Courtesy of NISSAN MOTOR CO., U.S.A.
11. Remove snap ring from front case.
    Fig 10: Identifying Front Case Snap Ring

    Courtesy of NISSAN MOTOR CO., U.S.A.
12. Remove mainshaft bearing from front case, using the drift.

    Tool number : KV38100300 (J-25523) 

    Fig 11: Removing Mainshaft Bearing From Front Case

    Courtesy of NISSAN MOTOR CO., U.S.A.
13. Remove drive chain and front drive shaft while tapping front drive shaft with plastic hammer.
    CAUTION: Be careful not to tap drive chain.
    Fig 12: Removing/Installing Drive Chain And Front Drive Shaft

    Courtesy of NISSAN MOTOR CO., U.S.A.
14. Remove oil gutter from rear case.
    Fig 13: Identifying Oil Gutter

    Courtesy of NISSAN MOTOR CO., U.S.A.
15. Remove oil cover bolts from rear case. And then, remove oil cover (1).
    Fig 14: Locating Oil Cover Bolts On Rear Case

    Courtesy of NISSAN MOTOR CO., U.S.A.
16. Remove retainer from transfer assembly harness connector.
17. Remove transfer assembly harness connector from rear case.
18. Remove O-ring from transfer assembly harness connector.
    Fig 15: Identifying Retainer On Transfer Assembly Harness Connector

    Courtesy of NISSAN MOTOR CO., U.S.A.
19. Remove mainshaft assembly from rear case, using the drift.

    Tool number : ST33052000 (-) 

    Fig 16: Removing Mainshaft Assembly From Rear Case

    Courtesy of NISSAN MOTOR CO., U.S.A.
20. Remove snap ring from rear case.
    Fig 17: Identifying Snap Ring On Rear Case

    Courtesy of NISSAN MOTOR CO., U.S.A.
21. Remove rear bearing from rear case, using the drifts.

    Tool number A: ST30611000 (J-25742-1) 

    B: ST35321000 (-) 

    Fig 18: Removing Rear Bearing From Rear Case

    Courtesy of NISSAN MOTOR CO., U.S.A.
22. Remove baffle plate from rear case.
23. Remove breather tube from rear case
    Fig 19: Removing Baffle Plate From Rear Case

    Courtesy of NISSAN MOTOR CO., U.S.A.

Mainshaft Assembly

1. Separate front case and rear case, then remove mainshaft assembly. Refer to "FRONT CASE AND REAR CASE ".
2. Remove snap ring from mainshaft.
3. Remove spacer from mainshaft.
4. Remove electric controlled coupling and sprocket from mainshaft.
5. Remove needle bearing from mainshaft.
   Fig 20: Removing/Installing Snap Ring

   Courtesy of NISSAN MOTOR CO., U.S.A.

Front Drive Shaft and Drive Chain

1. Separate front case and rear case. Refer to "FRONT CASE AND REAR CASE ".
2. Remove drive chain and front drive shaft while tapping front drive shaft with plastic hammer.
   CAUTION: Be careful not to tap drive chain.
   Fig 21: Removing/Installing Drive Chain And Front Drive Shaft

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Remove front drive shaft front bearing, using the drift and puller.

   Tool number : ST31214000 (J-25269-B) 

   Fig 22: Removing Front Drive Shaft Front Bearing

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Remove front drive shaft rear bearing, using the drift and puller.

   Tool number : ST31214000 (J-25269-B) 

   Fig 23: Removing Front Drive Shaft Rear Bearing

   Courtesy of NISSAN MOTOR CO., U.S.A.