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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 175 (Rear Final Drive: Ma241 (Eld)) >> Rear Final Drive: Ma241 (Eld) >> Unit Disassembly And Assembly >> Rear Final Drive Assembly >> Disassembly and Assembly >> Assembly

Disassembly and Assembly: Assembly

WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

Drive Pinion Assembly 

NOTE: If assembly is being done on-vehicle, perform the following after assembly:
  1. Install the new drive pinion front bearing outer race (2) and the new drive pinion rear bearing outer race (1), using Tools (A, B, C).
    GNSAWDIA1007Z-007Courtesy of NISSAN NORTH AMERICA, INC.

    Tool

    (A):- - (J-8092)

    (B):- - (J-51040)

    (C):- - (J-51041)
    CAUTION: Do not reuse drive pinion front and rear bearing outer race. Replace with bearing as a set.
  2. Install the drive pinion washer (2) to the drive pinion (1). Press on the new drive pinion rear bearing (3) using Tool (A) and suitable tool.
    GNSDB119234Courtesy of NISSAN NORTH AMERICA, INC.

    Tool

    (A):- - (J-44412)
    CAUTION:
    • Install the drive pinion washer in the proper direction as shown, above.
    • Do not reuse drive pinion rear bearing.
    • Be sure that drive pinion rear bearing is properly seated to the drive pinion.
  3. Assemble the new collapsible spacer to the drive pinion.
    CAUTION: Do not reuse collapsible spacer.
  4. Apply differential gear oil to the drive pinion rear bearing, and install the drive pinion assembly into the gear carrier.
  5. Apply differential gear oil to the new drive pinion front bearing and install it onto the pinion assembly.
    CAUTION: Do not reuse drive pinion front bearing.
  6. Install the companion flange and washer onto the drive pinion.
  7. Seat the drive pinion bearing using Tool.

    Tool

    - - (J-51048)

    If no Tool is available to seat the drive pinion bearing, perform the following.

    GNSAWDIA1407Z-407Courtesy of NISSAN NORTH AMERICA, INC.

    a. Using the old washer and drive pinion lock nut, tighten the drive pinion lock nut using suitable tool (A) until the hand-felt lash has been removed.

    CAUTION: Do not use power tool to seat the drive pinion bearing.

    b. Remove the drive pinion lock nut, washer and companion flange using suitable tools.

  8. Install the new front oil seal in evenly until it becomes flush with the gear carrier using Tool (A).
    GNSALDIA0337Z-337Courtesy of NISSAN NORTH AMERICA, INC.

    Tool

    : - (J-50982)
    CAUTION:
    • Do not reuse front oil seal.
    • Do not incline the new front oil seal when installing.
    • Apply multi-purpose grease to the lips of the new front oil seal.
  9. Apply spline sealant 1.5 mm (0.059 in) diameter bead 360 degrees around splines inside of the pinion flange and install the companion flange to the drive pinion, aligning the matching marks.
    G04150193Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not damage companion flange, deflector or front oil seal.
  10. Install the new drive pinion lock nut and washer and temporarily tighten using Tool (A).
    GNSAWDIA1410Z-410Courtesy of NISSAN NORTH AMERICA, INC.

    Tool

    :- - (J-45012)
    CAUTION:
    • Do not use power tool to install drive pinion lock nut.
    • Do not reuse drive pinion lock nut or washer.
  11. Adjust the drive pinion preload torque using suitable tool (B).

    Drive pinion bearing preload torque

    : Refer to Preload Torque .

    Tool

    : - - (J-25765-B)
    1. Tighten drive pinion lock nut in small increments and measure drive pinion bearing preload torque several times to prevent overtightening.
    2. Rotate the drive pinion several times, each time the drive pinion lock nut is tightened to seat the drive pinion bearings.
      CAUTION:
      • Do not loosen drive pinion lock nut to adjust the drive pinion bearing preload torque. If the drive pinion bearing preload torque exceeds specification, disassemble and replace the collapsible spacer and the drive pinion front bearing. Then tighten it again to adjust. Refer to Exploded View .
      • After adjustment, rotate drive pinion back and forth two to three times to check for unusual noise, rotation malfunction, and other malfunctions.
  12. Check companion flange runout. Refer to Disassembly and Assembly .
  13. Install differential case assembly. Refer to Disassembly and Assembly .

Differential Case Assembly 

NOTE: Do not disassemble differential case assembly, it is not serviceable. Replace it as an assembly.
  1. Secure the differential case assembly in a vice using Tool (A).

    Tool

    : - (J-51044)
  2. Apply thread locking sealant the point (A) into the thread hole for the drive gear (1).

    Use Genuine High Strength thread locking Sealant or equivalent. Refer to Recommended Chemical Products and Sealants .

    GNSJPDIE0038Z-038Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Completely clean and degrease the drive gear back face, thread holes.
    • Apply thread locking sealant onto the first and second threads under the thread hole chamfering of the drive gear on three or more different points.
    • Use genuine high strength thread locking sealant or equivalent. Refer to Recommended Chemical Products and Sealants .
  3. Align the matching mark of the differential case assembly with the mark of the drive gear (if reusing drive gear), then hand thread all the drive gear bolts to the drive gear.
    GNSDB123751Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Drive gear bolts are left hand threaded.
    • Do not reuse drive gear bolts.
  4. Draw the gear onto the differential case assembly by tightening drive gear in a crisscross pattern.
    CAUTION:
    • Do not use power tool to tighten drive gear bolts
    • Drive gear bolts are left hand threaded.
  5. Tighten the drive gear bolts to specification:
    CAUTION:
    • Do not reuse drive gear bolts.
    • Tighten drive gear bolts in a crisscross pattern.
    • Drive gear bolts are left hand threaded.
    1. Tighten the bolts in a crisscross fashion to the specified torque.

      Drive gear mounting bolts tightening torque

      : 50 N.m (5.1 kg-m, 37 ft-lb)
    2. Tighten the bolts additionally to the specified angle.

      Drive gear mounting bolts tightening angle

      : 28 to 32 degrees
      CAUTION: Check the tightening angle using the angle wrench [SST: KV10112100 (BT-8653-A)]. Do not make judgment by visual inspection.
  6. Apply sealant to threads of differential lock position switch.
    CAUTION: Remove old sealant from gear carrier and differential lock position switch. Also remove any moisture, oil, or foreign material from application and gear carrier and differential lock position switch.
  7. Install differential lock position switch on gear carrier and tighten differential lock position switch bolts to the specified torque.
    G04150349Courtesy of NISSAN NORTH AMERICA, INC.
  8. Press the new side bearings (1) onto the differential case assembly (2) using Tools (A) and Tool (B).
    GNSAWDIA1010Z-010Courtesy of NISSAN NORTH AMERICA, INC.

    Tool

    (A):- - (J-51045 or J-51046)

    (B):- - (J-51047)
    CAUTION:
    • Do not reuse side bearing inner race if removed.
    • Be sure that the side bearings are properly seated onto the differential case assembly.
  9. If Tool was removed after disassembly reinstall Tools (A, B, C).
    GNSAWDIA1056Z-056Courtesy of NISSAN NORTH AMERICA, INC.

    Tool number

    (A):- - (J-52029)

    (B):- - (J-24385-C)

    (C):- - (J-45101)
  10. Apply gear oil to side bearings. Install differential case assembly with side bearing outer races into gear carrier.
    GNSALDIA0392Z-392Courtesy of NISSAN NORTH AMERICA, INC.
  11. Be sure to align anti rotation tabs vertically.
    GNSDB119289Courtesy of NISSAN NORTH AMERICA, INC.
  12. Make sure the position switch rod end (A) is located past plate (B).
    GNSDB114575Courtesy of NISSAN NORTH AMERICA, INC.

    The position switch rod end (A) must not be located before plate (B).

    GNSDB120026Courtesy of NISSAN NORTH AMERICA, INC.
  13. Apply multi-purpose grease to new sensor connector.
    CAUTION: Do not reuse sensor connector.
  14. Connect differential lock solenoid harness to new sensor connector. Then install new sensor connector to gear carrier and tighten to the specified torque.
    G04150312Courtesy of NISSAN NORTH AMERICA, INC.
  15. Insert the left and right side bearing adjusting shims (2) in place between the side bearing outer race (3) and gear carrier (1) using Tool (A).
    GNSAWDIA1009Z-009Courtesy of NISSAN NORTH AMERICA, INC.

    Tool

    (A):- - (J-51042)
    CAUTION:
    • Install the side bearing adjusting shims in the proper direction as shown, above.
    • Do not strike the side bearing adjusting shims with a hammer.
    NOTE: Use axle housing spreader tool if necessary.
  16. Install the side bearing caps with the matching marks aligned and tighten the side bearing caps to specification.
    GNSALDIA0338Z-338Courtesy of NISSAN NORTH AMERICA, INC.

    Side bearing cap bolt torque specification

    : Refer to Exploded View .
    CAUTION: Tighten side bearing cap bolts in a criss cross pattern.
  17. Check and adjust backlash, tooth contact and total preload torque. Refer to Disassembly and Assembly .
  18. Install the carrier cover and gasket to the gear carrier. Refer to Removal and Installation .
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