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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 235 (Rear Final Drive: Ma241) >> Unit Disassembly And Assembly >> Rear Final Drive Assembly >> Disassembly and Assembly >> Disassembly

Disassembly and Assembly: Disassembly

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.
NOTE: If disassembly is being done on-vehicle, perform the following prior to disassembly:
  • Disconnect the propeller shaft from the rear final drive and support the propeller shaft using suitable tool. Refer to Removal and Installation .
  • Remove the spare tire.

Differential Case Assembly 

  1. Remove the carrier cover bolts and carrier cover gasket.
    NOTE: The carrier cover gasket is reusable. Only replace the carrier cover gasket if it is damaged.
    CAUTION:
    • Do not damage the mating surface.
    • Do not insert flat-bladed screwdriver, this will damage the mating surface.
  2. For proper reinstallation, paint matching mark (1) on one side of side bearing cap.
    GNSALDIA0338Z-338Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Side bearing caps are line-board for initial assembly. The matching marks are used to reinstall them in their original positions.
    • For matching mark, use paint. Do not damage side bearing cap.
  3. Remove side bearing caps using suitable tool (A).
    GNSAWDIA1412Z-412Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not use power tool to remove side bearing caps.
  4. Remove differential case assembly.
    GNSALDIA0390Z-390Courtesy of NISSAN NORTH AMERICA, INC.
    1. Attach Tool (A) to gear carrier.

      Tool number

      (A):- - (J-52029)

    2. Attach Tool (B) to Tool (A) and position Tool (C) in the proper orientation to measure the axle housing spread.
    GNSAWDIA1056Z-056Courtesy of NISSAN NORTH AMERICA, INC.

    Tool number

    (A):- - (J-52029)

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

    (C):- - (J-45101)

    WARNING: Be cautious when using Tool (A, B), the differential case assembly is heavy and could cause serious injury.
    CAUTION:
    • Using a dial indicator (C) do not exceed a spread of 0.381mm (0.015 in) when using axle housing spreader.
    • Remove Tool from gear carrier immediately after differential case assembly removal, to avoid damage to gear carrier.
  5. Remove side bearing outer races and side bearing adjusting shims. Keep side bearing and outer races together. Do not mix them up. Also, keep side bearing adjusting shims together with bearings.
    CAUTION: If reusing side bearing outer races and side bearing adjusting shims:
    • Do not mix them up.
    • Tag the side bearing outer races and the side bearing adjusting shims so they are installed in the same position they were removed from.
  6. Remove side bearing using Tool (A) and suitable tool.
    GNSDB121840Courtesy of NISSAN NORTH AMERICA, INC.

    Tool (A)

    :- - (J-51047)

    CAUTION:
    • Engage puller jaws in groove (SYMBOL ) to prevent damage.
    • To prevent damage to the side bearing and drive gear, place copper plates between these parts and vise.
    • Do not reuse side bearing if removed. Replace side bearing and bearing outer race as a set.
    NOTE: It is not necessary to remove side bearing except if it needs to be replaced.
  7. For proper reinstallation, paint matching mark on differential case assembly and drive gear.
    CAUTION: Use paint for matching marks. Do not damage differential case assembly or drive gear
  8. Remove drive gear bolts.
    GNSALDIA0391Z-391Courtesy of NISSAN NORTH AMERICA, INC.

    Tool (A)

    : - (J-52221)

    CAUTION:
    • Secure the differential case assembly in a vise using Tool (A).
    • Drive gear bolts are left hand threaded.
    • Do not damage drive gear by removing bolts improperly.
  9. Tap the drive gear off the differential case assembly uniformly using suitable tool.
    CAUTION:
    • Tap evenly all around to keep drive gear from binding.
    • Do not pry.
    • Do strike top of drive gear bolts to remove the drive gear.
    NOTE: Do not disassemble the differential case assembly, it is not serviceable. Replace it as an assembly (if necessary).

Drive Pinion Assembly 

NOTE: If assembly is being done on-vehicle, perform the following prior to after assembly:
  1. Remove differential case assembly.
  2. Remove drive pinion preload nut and washer using suitable tool (A).
    GNSAWDIA1407Z-407Courtesy of NISSAN NORTH AMERICA, INC.
  3. Put matching marks on the companion flange at location (A) and drive pinion using paint as shown.
    GNSAWDIA1352Z-352Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Use paint to make the matching marks. Do not damage the companion flange or drive pinion.
  4. Remove companion flange and deflector using a suitable tool (A).
    GNSAWDIA1408Z-408Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not damage companion flange or deflector.
  5. Remove front oil seal using Tool (A).
    GNSAWDIA1067Z-067Courtesy of NISSAN NORTH AMERICA, INC.

    Tool number

    : - (J-26941)

    CAUTION: Do not damage gear carrier.
  6. Remove the pinion shim.
  7. Remove drive pinion assembly (with rear inner bearing race and collapsible spacer) out of gear carrier using Tool (A).
    GNSAWDIA1413Z-413Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION: Do not drop drive pinion assembly.

    Tool number (A)

    : - (J-44421)

  8. Remove collapsible spacer from drive pinion assembly and discard collapsible spacer.
    CAUTION: Do not reuse the collapsible spacer.
  9. Remove drive pinion front bearing.
    CAUTION: Do not reuse drive pinion front bearing.
  10. Remove drive pinion rear bearing and drive pinion washer using suitable tool (A).
    GNSAWDIA1414Z-414Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE:
    • The drive pinion washer is matched to the carrier for proper drive pinion height. No drive pinion height adjustment is necessary if reusing original drive pinion washer.
    CAUTION:
    • Do not reuse drive pinion rear bearing.
    • Do not discard drive pinion washer, reuse if not damaged.
  11. Clean threads and splines of the drive pinion, if reusing drive pinion.
  12. Tap drive pinion front and rear bearing outer races uniformly using suitable tool (A) to remove.
    GNSAWDIA1415Z-415Courtesy of NISSAN NORTH AMERICA, INC.
    CAUTION:
    • Do not reuse bearing outer races. Replace bearing and outer races as a set.
    • Do not damage gear carrier.