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Home >> Infiniti >> 2006 >> QX56 AWD >> Repair and Diagnosis >> Transmission >> Transfer Case >> Transfer Assembly >> Disassembly and Assembly >> Assembly >> Front Case

Front Case

  1. Install the carrier bearing to the sun gear using Tools.

    Tool number A: ST30911000 ( - ) 

    B: KV31103300 ( - ) 

    Fig 1: Identifying Carrier Bearing To Sun Gear Using Tools
    G04134235Courtesy of NISSAN MOTOR CO., U.S.A.
  2. Install the new snap ring to the sun gear assembly using suitable tool.
    CAUTION: Do not reuse snap ring.
    Fig 2: Identifying Snap Ring To Sun Gear Assembly Using Suitable Tool
    G04134236Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Apply ATF to the circumference of the new metal bushing and install it to the sun gear assembly using Tool.

    Tool number : ST35300000 ( - ) 

    Dimension A : 7.7 - 8.3 mm (0.303 - 0.327 in) 

    Fig 3: Applying ATF To Circumference Of New Metal Bushing
    G04134237Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Do not reuse metal bushing.
    • Apply ATF to metal bushing before installing.
  4. Apply ATF to the new needle bearing and install it to the sun gear assembly using Tool.

    Tool number : ST33220000 ( - ) 

    Dimension B : 62.5 - 63.1 mm (2.461 - 2.484 in) 

    Fig 4: Identifying Needle Bearing
    G04134238Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Do not reuse needle bearing.
    • Apply ATF to needle bearing before installing.
  5. Install the sun gear assembly to the planetary carrier assembly.
    Fig 5: Installing Sun Gear Assembly To Planetary Carrier Assembly
    G04134239Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Install the new snap ring to the planetary carrier assembly.
    CAUTION: Do not reuse snap ring.
    Fig 6: Installing Snap Ring To Planetary Carrier Assembly
    G04134240Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Set the input bearing into the front case and install using Tool.

    Tool number : ST30720000 (J-25405) 

    Fig 7: Setting Input Bearing Into Front Case
    G04134241Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Install the new snap ring into the front case.
    CAUTION: Do not reuse snap ring.
    Fig 8: Identifying Snap Ring Into Front Case
    G04134242Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Install the internal gear with its groove facing the new snap ring into the front case. Then secure it with the new snap ring.
    CAUTION: Do not reuse snap ring.
    Fig 9: Identifying Snap Ring Into Front Case
    G04134243Courtesy of NISSAN MOTOR CO., U.S.A.
  10. Install new front oil seal until it is seated flush with the end face of the front case using Tool.

    Tool number : KV38100500 ( - ) 

    Fig 10: Installing Front Oil Seal
    G04134244Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Do not reuse oil seal.
    • Apply petroleum jelly to front oil seal lip before installing.
  11. Install the planetary carrier assembly and sun gear assembly to the front case using Tool.

    Tool number : ST33200000 (J-26082) 

    Fig 11: Identifying Planetary Carrier Assembly
    G04134245Courtesy of NISSAN MOTOR CO., U.S.A.
  12. Install the new snap ring to the sun gear assembly.
    CAUTION: Do not reuse snap ring.
    Fig 12: Identifying Snap Ring To Sun Gear Assembly
    G04134246Courtesy of NISSAN MOTOR CO., U.S.A.
  13. Apply petroleum jelly to the circumference of the new input oil seal, and install it to the front case using Tools.

    Tool number A: ST30720000 (J-25405) 

    B: ST33200000 (J-26082) 

    Dimension "A" : 4.0 - 4.6 mm (0.157 - 0.181 mm) 

    Fig 13: Identifying Input Oil Seal
    G04134247Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Do not reuse input oil seal.
    • Apply petroleum jelly to input oil seal.
  14. Install the fork guide, shift fork spring, 2-4 fork, and L-H fork to the shift rod, and secure them with new retaining pins.
    CAUTION: Do not reuse retaining pins.
    Fig 14: Identifying Fork Guide, Shift Fork Spring, 2-4 Fork, And L-H Fork To Shift Rod
    G04134248Courtesy of NISSAN MOTOR CO., U.S.A.
  15. Install the 2-4 sleeve and L-H sleeve to each fork.
  16. Install the shift cross to the front case.
    Fig 15: Identifying 2-4 Sleeve And L-H Sleeve To Each Fork
    G04134249Courtesy of NISSAN MOTOR CO., U.S.A.
  17. While aligning the L-H sleeve with the planetary carrier, install the shift rod assembly to the front case.
    Fig 16: Identifying Shift Rod Assembly To Front Case
    G04134250Courtesy of NISSAN MOTOR CO., U.S.A.
  18. Apply liquid gasket to the entire center case mating surface of the front case assembly as shown.
    CAUTION: Remove all foreign materials such as water, oil and grease from center case and front case mating surfaces.

    For GI, go to GENERAL INFORMATION .

    Fig 17: Applying Liquid Gasket To Entire Center Case Mating Surface Of Front Case Assembly
    G04134251Courtesy of NISSAN MOTOR CO., U.S.A.
  19. Install the center case assembly to the front case assembly.
    CAUTION: Do not damage mainshaft end.
  20. Tap the center case lightly and press-fit the front drive shaft bearing into the front case.
    Fig 18: Installing Center Case Assembly To Front Case Assembly
    G04134252Courtesy of NISSAN MOTOR CO., U.S.A.
  21. Tighten the front case bolts to the specified torque. Refer to "COMPONENTS ".
    CAUTION: Be sure to install harness bracket and air breather hose clamp.
  22. Install the drain plug with a new gasket.
    CAUTION: Do not reuse gasket.
    Fig 19: Identifying Front Case Bolts
    G04134253Courtesy of NISSAN MOTOR CO., U.S.A.
  23. Align the matching mark on the front drive shaft with the mark on the companion flange, then install the companion flange.
    Fig 20: Aligning Matching Mark On Front Drive Shaft
    G04134254Courtesy of NISSAN MOTOR CO., U.S.A.
  24. Install the new companion flange self-lock nut. Tighten to the specified torque using Tool. Refer to "COMPONENTS ".

    Tool number : KV40104000 ( - ) 

    Fig 21: Identifying Companion Flange Self-Lock Nut
    G04134255Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION: Do not reuse self-lock nut.
  25. Remove all the sealant from the check plug, switch mating surface and front case.
    CAUTION: Remove old sealant adhering to mating surfaces. Also remove any moisture, oil, or foreign material adhering to application and mating surfaces.
  26. Install the check ball and check spring to the front case. Apply silicone gasket, to the check plug and wait detection switch and install them to the front case. Tighten to the specified torque. Refer to "COMPONENTS ".
    NOTE: Wait detection switch harness connector is black.
  27. Install the new oil seal in the front case using Tool.

    Tool number : ST22360002 (J-25679-01) 

    For GI, go to GENERAL INFORMATION .

    Fig 22: Identifying Check Ball And Check Spring To Front Case
    G04134256Courtesy of NISSAN MOTOR CO., U.S.A.
    CAUTION:
    • Do not reuse oil seal.
    • Apply petroleum jelly to seal lip before installing.
  28. Install the shift lever to the shift cross.
  29. Install the lock pin and lock pin nut. Tighten to the specified torque. Refer to "COMPONENTS ".
    Fig 23: Installing Oil Seal In Front Case Using Tool
    G04134257Courtesy of NISSAN MOTOR CO., U.S.A.
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