LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2012 >> FX50 >> Repair and Diagnosis >> Transmission >> Automatic Transmission >> Unit Disassembly And Assembly >> Transmission Assembly >> Disassembly
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Transmission Assembly: Disassembly

CAUTION: Never disassemble parts behind drum support. Refer to "CROSS-SECTIONAL VIEW ".
  1. Drain ATF through drain plug.
  2. Remove torque converter by holding it firmly and turning while pulling straight out.
    Fig 1: Removing/Installing Torque Converter
    G07013603Courtesy of NISSAN NORTH AMERICA, INC.
  3. Remove tightening bolts ( indicated by Black arrows in the figure) for converter housing and transmission case.
  4. Remove converter housing from transmission case.
    CAUTION: Be careful not to scratch converter housing.
    Fig 2: Locating Converter Housing Mounting Bolts
    G07023132Courtesy of NISSAN NORTH AMERICA, INC.
  5. Remove O-ring from input clutch assembly.
    Fig 3: Identifying Input Clutch Assembly O-Ring
    G07013605Courtesy of NISSAN NORTH AMERICA, INC.
  6. Remove tightening bolts ( indicated by Black arrows in the figure) for oil pump assembly and transmission case.
    Fig 4: Locating Oil Pump Assembly Mounting Bolts
    G07013606Courtesy of NISSAN NORTH AMERICA, INC.
  7. Attach the sliding hammers (SST: ST25850000) (A) to oil pump assembly (1) and extract it evenly from transmission case.
    CAUTION:
    • Fully tighten the sliding hammer screws.
    • Make sure that bearing race is installed to the oil pump assembly edge surface.
    Fig 5: Installing Sliding Hammers To Oil Pump Assembly
    G08217779Courtesy of NISSAN NORTH AMERICA, INC.
  8. Remove O-ring (1) from oil pump assembly.
    Fig 6: Identifying Oil Pump Assembly O-Ring
    G07016104Courtesy of NISSAN NORTH AMERICA, INC.
  9. Remove bearing race (1) from oil pump assembly.
    Fig 7: Identifying Oil Pump Assembly Bearing Race
    G07016105Courtesy of NISSAN NORTH AMERICA, INC.
  10. Remove seal ring (1) from oil pump assembly.
    Fig 8: Identifying Oil Pump Assembly Seal Ring
    G07016106Courtesy of NISSAN NORTH AMERICA, INC.
  11. Remove under drive sun gear (1) from under drive carrier assembly.
    Fig 9: Identifying Drive Carrier Assembly Sun Gear
    G07016107Courtesy of NISSAN NORTH AMERICA, INC.
  12. Remove needle bearing (1) from under drive sun gear.
    Fig 10: Removing/Installing Drive Sun Gear Needle Bearing
    G07016108Courtesy of NISSAN NORTH AMERICA, INC.
  13. Remove needle bearing (1) from under drive carrier assembly.
    Fig 11: Identifying Drive Carrier Assembly Needle Bearing
    G07016109Courtesy of NISSAN NORTH AMERICA, INC.
  14. Remove front brake component part (retaining plates, drive plates and driven plate) from transmission case by using a wire (A) with its tip bent like a hook.
    Fig 12: Removing Front Brake Components From Transmission Case Using Wire
    G07016110Courtesy of NISSAN NORTH AMERICA, INC.
  15. Remove snap ring (1) from transmission case using a flat-bladed screwdriver.
    CAUTION:
    • Be careful not to scratch transmission case and 1st one way clutch.
    • Be careful not to damage snap ring.
    Fig 13: Identifying Transmission Case Snap Ring
    G07016111Courtesy of NISSAN NORTH AMERICA, INC.
  16. Remove input clutch assembly (with 1st one-way clutch, under drive carrier assembly, front brake hub, front carrier assembly, and rear internal gear) (1) from transmission case.
    Fig 14: Removing Transmission Case Input Clutch Assembly
    G07016112Courtesy of NISSAN NORTH AMERICA, INC.
  17. Remove 1st one-way clutch (1) from front brake hub.
    Fig 15: Identifying Front Brake Hub One-Way Clutch
    G07016113Courtesy of NISSAN NORTH AMERICA, INC.
  18. Remove under drive carrier assembly (with front brake hub) (1) from front carrier assembly.
    Fig 16: Identifying Drive Carrier Assembly
    G07016114Courtesy of NISSAN NORTH AMERICA, INC.
  19. Remove needle bearing (1) from front carrier assembly.
    Fig 17: Identifying Front Carrier Assembly Needle Bearing
    G07016115Courtesy of NISSAN NORTH AMERICA, INC.
  20. Remove seal rings (1) from input clutch assembly.
    Fig 18: Identifying Input Clutch Assembly Seal Rings
    G07016116Courtesy of NISSAN NORTH AMERICA, INC.
  21. Remove mid carrier assembly and rear carrier assembly as a unit.
    Fig 19: Identifying Rear Mid Carrier Assembly
    G07016117Courtesy of NISSAN NORTH AMERICA, INC.
  22. Remove mid carrier assembly from rear carrier assembly.
    Fig 20: Removing Rear Mid Carrier Assembly
    G07016118Courtesy of NISSAN NORTH AMERICA, INC.
  23. Remove needle bearing (front side) from mid carrier assembly.
    Fig 21: Removing/Installing Mid Carrier Assembly Needle Bearing (Front Side)
    G07016119Courtesy of NISSAN NORTH AMERICA, INC.
  24. Remove needle bearing (rear side) from mid carrier assembly.
    Fig 22: Removing/Installing Mid Carrier Assembly Needle Bearing (Rear Side)
    G07016120Courtesy of NISSAN NORTH AMERICA, INC.
  25. Remove bearing race from rear carrier assembly.
    Fig 23: Removing/Installing Rear Carrier Assembly Bearing Race
    G07016121Courtesy of NISSAN NORTH AMERICA, INC.
  26. Remove needle bearing from rear carrier assembly.
    Fig 24: Removing/Installing Rear Carrier Assembly Needle Bearing
    G07013665Courtesy of NISSAN NORTH AMERICA, INC.
  27. Remove mid sun gear assembly, rear sun gear assembly, and high and low reverse clutch hub as a unit.
    CAUTION: Be careful to remove then with bearing race and needle bearing.
    Fig 25: Identifying Rear And Mid Sun Gear Assembly
    G07016123Courtesy of NISSAN NORTH AMERICA, INC.
  28. Remove high and low reverse clutch assembly from direct clutch assembly.
    CAUTION: Make sure that needle bearing is installed to the high and low reverse clutch assembly edge surface.
    Fig 26: Identifying High And Low Reverse Clutch Assembly
    G07016124Courtesy of NISSAN NORTH AMERICA, INC.
  29. Remove direct clutch assembly from reverse brake.
    Fig 27: Identifying Direct Clutch Assembly
    G07016125Courtesy of NISSAN NORTH AMERICA, INC.
  30. Remove needle bearing from drum support.
    Fig 28: Identifying Needle Bearing And Drum Support
    G07016126Courtesy of NISSAN NORTH AMERICA, INC.
  31. Remove snap ring (1) from joint connector (A).
    Fig 29: Removing Joint Connector Snap Ring
    G07016127Courtesy of NISSAN NORTH AMERICA, INC.
  32. Push joint connector (A).
    CAUTION: Be careful not to damage connector.
    Fig 30: Pushing Joint Connector
    G07016128Courtesy of NISSAN NORTH AMERICA, INC.
  33. Remove clips (1) and oil pan mounting bolts ( indicated by Black arrows in the figure).
  34. Remove oil pan (2) and oil pan gasket.
    Fig 31: Locating Oil Pan Mounting Bolts
    G08217805Courtesy of NISSAN NORTH AMERICA, INC.
  35. Remove magnets (1) from oil pan.
    Fig 32: Identifying Oil Pan Magnets
    G07013517Courtesy of NISSAN NORTH AMERICA, INC.
  36. Disconnect output speed sensor connector (A).
    CAUTION: Be careful not to damage connector.
  37. Disengage terminal clips ( indicated by Black arrows in the figure).
    Fig 33: Locating Output Speed Sensor Harness Terminal Clips
    G07013520Courtesy of NISSAN NORTH AMERICA, INC.
  38. Remove control valve & TCM mounting bolts and clip (1) from the control valve & TCM.
    Fig 34: Identifying Control Valve And TCM Mounting Bolts And Clip
    G08217808Courtesy of NISSAN NORTH AMERICA, INC.
    Bolt symbol Length mm (in) Number of bolts
    A 43 (1.69) 3
    B 40 (1.57) 2
    C 54 (2.13) 6
    D 50 (1.97) 2
    E(1) 50 (1.97) 1
    (1) Reamer bolt
  39. Remove the control valve & TCM (1) from transmission case.
    CAUTION: When removing, never with the manual valve notch and manual plate height. Remove it vertically.
    Fig 35: Removing/Installing Transmission Case Control Valve And TCM
    G07016133Courtesy of NISSAN NORTH AMERICA, INC.
  40. Remove joint connector (1) from the control valve & TCM using a flat-bladed screwdriver (A).
    Fig 36: Removing Joint Connector From Control Valve And TCM Using Flat-Bladed Screwdriver
    G07016134Courtesy of NISSAN NORTH AMERICA, INC.
  41. Disconnect TCM connector (A).
    CAUTION: Be careful not to damage connector.
    Fig 37: Identifying TCM Connector
    G07016135Courtesy of NISSAN NORTH AMERICA, INC.
  42. Remove tightening bolts for adapter case assembly and transmission case.
    Fig 38: Identifying Adapter Case Assembly Bracket And Self-Sealing Bolts
    G08217812Courtesy of NISSAN NORTH AMERICA, INC.
  43. Tap adapter case assembly using a soft hammer.
    CAUTION: Be careful not to damage adapter case.
    Fig 39: Tapping Adapter Case Assembly Using Soft Hammer
    G07016144Courtesy of NISSAN NORTH AMERICA, INC.
  44. Remove adapter case assembly from transmission case. (With needle bearing)
    Fig 40: Removing/Installing Adapter Case Assembly
    G07016145Courtesy of NISSAN NORTH AMERICA, INC.
  45. Remove gasket from transmission case.
    Fig 41: Removing/Installing Transmission Case Gasket
    G07016148Courtesy of NISSAN NORTH AMERICA, INC.
  46. Remove bearing race from output shaft.
    Fig 42: Removing/Installing Output Shaft Bearing Race
    G07016139Courtesy of NISSAN NORTH AMERICA, INC.
  47. Remove output shaft from transmission case by rotating left/right.
    Fig 43: Rotating Left/Right To Output Shaft
    G07016140Courtesy of NISSAN NORTH AMERICA, INC.
  48. Remove parking gear (1) from output shaft (2).
    Fig 44: Removing/Installing Output Shaft Parking Gear
    G07016141Courtesy of NISSAN NORTH AMERICA, INC.
  49. Remove seal rings (1) from output shaft.
    Fig 45: Identifying Output Shaft Seal Rings
    G07013536Courtesy of NISSAN NORTH AMERICA, INC.
  50. Remove needle bearing from transmission case.
    Fig 46: Identifying Transmission Case Needle Bearing
    G07016151Courtesy of NISSAN NORTH AMERICA, INC.
  51. Remove output speed sensor (1) from transmission case.
    CAUTION:
    • Never subject it to impact by dropping or hitting it.
    • Never disassemble.
    • Never allow metal filings, etc. to get on the sensor's front edge magnetic area.
    • Never place in an area affected by magnetism.
    Fig 47: Locating Output Speed Sensor Mounting Bolt
    G08217821Courtesy of NISSAN NORTH AMERICA, INC.
  52. Remove reverse brake snap ring (fixing plate) with 2 flat-bladed I screwdrivers.
    CAUTION:
    • Be careful not to scratch transmission case and reverse brake retaining plate.
    • Be careful not to damage snap ring.
    NOTE: Press out snap ring from the transmission case oil pan side gap with a flat-bladed screwdriver, and remove it using a another screwdriver.
  53. Remove reverse brake retaining plate from transmission case.
    Fig 48: Removing Reverse Brake Snap Ring Using Flat-Bladed Screwdrivers
    G07016153Courtesy of NISSAN NORTH AMERICA, INC.
  54. Remove N-spring from transmission case.
    Fig 49: Identifying N-Spring, Transmission Case, Driven And Drive Plate
    G07016154Courtesy of NISSAN NORTH AMERICA, INC.
  55. Remove reverse brake component part (drive plates, driven plates, dish plates and retaining plate) from transmission case.
    Fig 50: Removing Transmission Case Reverse Brake Components
    G07016155Courtesy of NISSAN NORTH AMERICA, INC.
  56. Remove snap ring (fixing spring retainer) using a flat-bladed screwdriver.
    CAUTION:
    • Be careful not to scratch transmission case and spring retainer.
    • Be careful not to damage snap ring.
    Fig 51: Identifying Snap Ring
    G07016156Courtesy of NISSAN NORTH AMERICA, INC.
  57. Remove reverse brake spring retainer and reverse brake return spring from transmission case.
    Fig 52: Identifying Spring Retainer
    G07016157Courtesy of NISSAN NORTH AMERICA, INC.
  58. Remove seal rings from drum support.
    Fig 53: Identifying Seal Rings And Drum Support
    G07013631Courtesy of NISSAN NORTH AMERICA, INC.
  59. Remove needle bearing from drum support edge surface.
    Fig 54: Identifying Needle Bearing And Drum Support
    G07016159Courtesy of NISSAN NORTH AMERICA, INC.
  60. Remove reverse brake piston (1) from transmission case with compressed air. Refer to "OIL CHANNEL ".
    CAUTION: Care should be taken not to abruptly blow air. It makes pistons incline, as the result, it becomes hard to disassemble the pistons.
    Fig 55: Removing Transmission Case Reverse Brake Piston Using Compressed Air
    G08217829Courtesy of NISSAN NORTH AMERICA, INC.
  61. Remove D-rings from reverse brake piston.
    Fig 56: Identifying D-Rings And Reverse Brake Piston
    G07013608Courtesy of NISSAN NORTH AMERICA, INC.
  62. Remove manual shaft retaining pin with pair of nippers.
    CAUTION: Be careful not to cut retaining pin.
    Fig 57: Removing Manual Shaft Retaining Pin Using Pair Of Nippers
    G07013609Courtesy of NISSAN NORTH AMERICA, INC.
  63. Remove manual plate (1) from detent spring (2).
  64. Remove parking rod (3) from manual plate.
  65. Install manual plate to detent spring.
    Fig 58: Identifying Manual Plate, Detent Spring And Parking Rod
    G07013610Courtesy of NISSAN NORTH AMERICA, INC.
  66. Use a pin punch [4 mm (0.16 in) Dia. commercial service tool] to knock out retaining pin (1).
    Fig 59: Identifying Retaining Pin
    G07013611Courtesy of NISSAN NORTH AMERICA, INC.
  67. Remove manual plate from manual shaft.
    Fig 60: Removing/Installing Manual Plate
    G07013612Courtesy of NISSAN NORTH AMERICA, INC.
  68. Remove manual shaft from transmission case.
    Fig 61: Removing/Installing Transmission Case Manual Shaft
    G07013613Courtesy of NISSAN NORTH AMERICA, INC.
  69. Remove manual shaft oil seals using a flat-bladed screwdriver.
    CAUTION: Be careful not to scratch transmission case.
    Fig 62: Removing Manual Shaft Oil Seals Using Flat-Bladed Screwdriver
    G07013614Courtesy of NISSAN NORTH AMERICA, INC.
  70. Remove detent spring (1) from transmission case.
    Fig 63: Identifying Detent Spring Mounting Bolts
    G08217837Courtesy of NISSAN NORTH AMERICA, INC.
  71. Remove needle bearing (1) from adapter case.
    Fig 64: Identifying Adapter Case Needle Bearing
    G07013537Courtesy of NISSAN NORTH AMERICA, INC.
  72. Remove parking actuator support from adapter case.
    Fig 65: Removing/Installing Rear Extension Parking Actuator Support
    G07013617Courtesy of NISSAN NORTH AMERICA, INC.
  73. Remove parking pawl (with return spring) and pawl shaft from adapter case.
    Fig 66: Removing/Installing Rear Extension Parking Pawl And Pawl Shaft
    G07013618Courtesy of NISSAN NORTH AMERICA, INC.
  74. Remove return spring (1) from parking pawl (2).
    Fig 67: Identifying Return Spring And Parking Pawl
    G07013540Courtesy of NISSAN NORTH AMERICA, INC.
  75. Remove rear oil seal from adapter case using a flat-bladed screwdriver (A).
CAUTION: Be careful not to scratch adapter case.
Fig 68: Removing Adapter Case Rear Oil Seal Using Flat-Bladed Screwdriver
G06307484Courtesy of NISSAN NORTH AMERICA, INC.
scientia non olet · About LEMON Manuals