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Disassembly and Assembly: Disassembly

WARNING: This page is about a different car, the 2003 Nissan Altima and 2002 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove drain plug and filler plug.
  2. Remove park/neutral position switch and back-up lamp switch.
  3. After removing shift check and stopper bolt, remove control assembly.
    Fig 1: Removing Control Assembly
    G02160376Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Remove check plugs (3 pieces), check springs (3 pieces), check balls (3 pieces) and shift check sleeve (1 piece).
    Fig 2: Removing Check Plugs, Check Springs, Check Balls And Shift Check Sleeve
    G02160377Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Remove transaxle case fixing bolts.
    Fig 3: Removing Transaxle Case Fixing Bolts
    G02160378Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Remove the bore plug.
    CAUTION: Be careful not to damage transaxle case.
  7. While spreading the snap ring of mainshaft rear bearing located at bore plug hole, remove transaxle case.
  8. Remove the oil gutter and baffle plate.
  9. Remove snap ring, mainshaft rear bearing adjusting shim and input shaft rear bearing adjusting shim from transaxle case.
  10. Remove differential side bearing outer race (transaxle case side) and then adjust shim.
    Fig 4: Removing Differential Side Bearing Outer Race (Transaxle Case Side)
    G02160379Courtesy of NISSAN MOTOR CO., U.S.A.
  11. Remove welch plug.
    Fig 5: Removing Welch Plug
    G02160380Courtesy of NISSAN MOTOR CO., U.S.A.
  12. Remove differential oil seal.
    Fig 6: Removing Differential Oil Seal
    G02160381Courtesy of NISSAN MOTOR CO., U.S.A.
  13. Remove magnet from clutch housing.
  14. With shift lever in 5th position, remove bracket bolts from reverse lever assembly. Lift reverse lever assembly to remove.
    CAUTION: Be careful not to lose shifter cap.
    Fig 7: Removing Bracket Bolts From Reverse Lever Assembly
    G02160382Courtesy of NISSAN MOTOR CO., U.S.A.
  15. Pull out reverse fork rod then remove reverse shift fork.
  16. Shift 3rd & 4th fork rod to 3rd position. Remove retaining pin of 5th shift fork using pin punch.
    Fig 8: Removing Retaining Pin Of 5th Shift Fork
    G02160383Courtesy of NISSAN MOTOR CO., U.S.A.
  17. Remove stopper rings for 5th & reverse bracket.
    Fig 9: Removing Stopper Rings For 5th & Reverse Bracket
    G02160384Courtesy of NISSAN MOTOR CO., U.S.A.
  18. Pull out 5th & reverse fork rod and remove 5th shift fork and 5th & reverse bracket.
  19. Remove check balls (2 pieces) and inter lockpin.
  20. Remove retaining pin of 3rd & 4th bracket using pin punch.
    Fig 10: Removing Retaining Pin Of 3rd & 4th Bracket
    G02160385Courtesy of NISSAN MOTOR CO., U.S.A.
  21. Remove stopper rings for 3rd & 4th shift fork.
  22. Pull out 3rd & 4th fork rod and remove 3rd & 4th shift fork and bracket.
  23. Remove shift check sleeve from clutch housing.
  24. Remove retaining pin of 1st & 2nd shift fork using pin punch.
    Fig 11: Removing Retaining Pin Of 1st & 2nd Shift Fork
    G02160386Courtesy of NISSAN MOTOR CO., U.S.A.
  25. Pull out 1st & 2nd with bracket.
  26. Remove 1st & 2nd shift fork.
  27. Remove retaining pin of 1st & 2nd bracket using pin punch and separate 1st & 2nd fork rod and bracket.
  28. Remove gear components from clutch housing in the following procedure.
    1. While tapping input shaft with plastic hammer, remove input shaft assembly, mainshaft assembly and reverse idler gear assembly as a set.
      CAUTION: Always withdraw mainshaft straight out. Failure to do so can damage resin oil channel on clutch housing side.
      Fig 12: Removing Gear Components From Clutch Housing
      G02160387Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Remove final drive assembly.
  29. Remove the mainshaft bearing retainer and then the mainshaft front bearing.
    Fig 13: Removing Mainshaft Bearing Retainer And Then Mainshaft Front Bearing
    G02160388Courtesy of NISSAN MOTOR CO., U.S.A.
  30. Remove the oil channel on the mainshaft side.
  31. Remove the differential oil seal (clutch housing side).
  32. Remove differential side bearing outer race (clutch housing side).
    Fig 14: Removing Differential Side Bearing Outer Race (Clutch Housing Side)
    G02160389Courtesy of NISSAN MOTOR CO., U.S.A.
  33. Remove input shaft oil seal.
    CAUTION: Be careful not to damage clutch housing.
    Fig 15: Removing Input Shaft Oil Seal
    G02160390Courtesy of NISSAN MOTOR CO., U.S.A.
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