LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2006 >> GX 470 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> Automatic Transmission ASSY >> Replacement
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Automatic Transmission ASSY: Replacement

  1. SEPARATE BATTERY NEGATIVE TERMINAL 
  2. REMOVE SHIFT LEVER KNOB SUB-ASSY 
    1. Remove the shift lever knob sub-assy.
      Fig 1: Removing Shift Lever Knob Sub-Assy
      G02963330Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the floor shift lever knob sub-assy.
      Fig 2: Removing Floor Shift Lever Knob Sub-Assy
      G02963331Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE CONSOLE UPPER PANEL GARNISH NO. 1 (SEE  REPLACEMENT  ) 
  4. REMOVE CONSOLE UPPER PANEL GARNISH NO. 2 (SEE  REPLACEMENT  ) 
  5. REMOVE CONSOLE PANEL UPPER ASSY (SEE  REPLACEMENT  ) 
  6. REMOVE TRANSFER HIGH & LOW SHIFT LEVER ASSY 
    1. Using needle nose pliers, remove the snap ring and pull out the transfer high & low shift lever assy from the transfer assy.
      Fig 3: Removing Transfer High & Low Shift Lever Assy
      G02963332Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE ENGINE UNDER COVER SUB-ASSY NO. 1 
  8. REMOVE ENGINE UNDER COVER ASSY REAR 
  9. REMOVE FRONT SUSPENSION MEMBER BRACKET 
    1. Remove the 4 bolts and front suspension member bracket.
      Fig 4: Removing Front Suspension Member Bracket
      G02963333Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE FRONT SUSPENSION MEMBER BRACKET LH 
    1. Remove the 4 bolts and front suspension member bracket LH.
  11. DISCONNECT OXYGEN SENSOR (SEE  REMOVAL & INSTALLATION AND DISASSEMBLY & REASSEMBLY  ) 
  12. REMOVE EXHAUST PIPE ASSY (SEE  REMOVAL & INSTALLATION AND DISASSEMBLY & REASSEMBLY  ) 
  13. REMOVE PROPELLER SHAFT ASSY FRONT (SEE  OVERHAUL  ) 
  14. REMOVE PROPELLER SHAFT ASSY (SEE  OVERHAUL  ) 
  15. DRAIN AUTOMATIC TRANSMISSION FLUID 
    1. Remove the drain plug, gasket and drain ATF.
    2. Install a new gasket and drain plug.

      Torque: 28 N.m (285 kgf.cm, 21 ft.lbf) 

  16. REMOVE OIL COOLER OUTLET TUBE NO. 1 
    1. Remove the 2 bolts and 2 clamps.
      Fig 5: Removing Oil Cooler Outlet Tube No. 1 Bolts & Clamps
      G02963334Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using SST, disconnect the oil cooler outlet tube No. 1.

      SST 09023-12701

      Fig 6: Disconnecting Oil Cooler Outlet Tube No. 1
      G02963335Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. REMOVE OIL COOLER INLET TUBE NO. 1 
    1. Using SST, disconnect the oil cooler inlet tube No. 1.

      SST 09023-12701

  18. DISCONNECT TRANSMISSION CONTROL CABLE ASSY 
    1. Remove the nut and clip, disconnect the transmission control cable assy from the transmission control cable bracket.
      Fig 7: Disconnecting Transmission Control Cable Assy
      G02963336Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  19. SUPPORT AUTOMATIC TRANSMISSION ASSY 
    1. Support the transmission with a transmission jack.
      Fig 8: Supporting Automatic Transmission Assy
      G02963337Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. REMOVE FRAME CROSSMEMBER SUB-ASSY NO. 3 
    1. Remove the 4 bolts on the frame crossmember sub-assy No. 3.
    2. Remove the 4 nuts, 4 bolts and frame crossmember sub-assy No. 3.
      Fig 9: Removing Frame Crossmember Sub-Assy No. 3
      G02963338Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. DISCONNECT CONNECTOR 
    1. Tilt down the transmission.
      NOTE: Take care so that the cooling fan does not come in contact with the fan shroud.
    2. Disconnect the park/neutral position switch connector.
    3. Disconnect the transmission wire connector.
    4. Disconnect the 2 speed sensor connectors.
    5. Disconnect the speedometer sensor connector.
    6. Disconnect the indicator No. 1 switch connector. (Low)
    7. Disconnect the indicator No. 2 switch connector. (Neutral) (h) Disconnect the indicator No. 3 switch connector. (Diff. lock
    8. Disconnect the transfer shift actuator connector, (w/transfer shift actuator)
      Fig 10: Disconnecting Connector
      G02963339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. SEPARATE TRANSFER BREATHER HOSE SUB-ASSY 
    1. Separate the transfer breather hose sub-assy from the transmission assy.

    HINT:

    The breather hose bracket is tightened together with the transmission housing.

    Fig 11: Separating Transfer Breather Hose Sub-Assy
    G02963340Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  23. DISCONNECT WIRE HARNESS 
    1. Remove the 3 bolts and wire harness from the transmission and transfer.
    2. Disconnect the wire harness from the transmission assy.
      Fig 12: Disconnecting Wire Harness
      G02963341Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  24. REMOVE FLYWHEEL HOUSING UNDER COVER 
    1. Remove the bolt and flywheel housing under cover.
      Fig 13: Removing Flywheel Housing Under Cover
      G02963342Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  25. REMOVE AUTOMATIC TRANSMISSION ASSY 
    1. Turn the crankshaft to gain access to each bolt.
      Fig 14: Turning Crankshaft To Gain Access To Bolt
      G02963343Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Hold the crankshaft pulley nut with a wrench and remove the 6 bolts.
    3. Remove the 10 bolts.
    4. Separate and remove the automatic transmission.
      Fig 15: Separating & Removing Automatic Transmission
      G02963344Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  26. REMOVE TRANSMISSION CONTROL CABLE BRACKET NO. 1 
    1. Remove the 2 bolts and transmission control cable bracket.
      Fig 16: Removing Transmission Control Cable Bracket No. 1
      G02963345Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  27. REMOVE TRANSFER ASSY (SEE  OVERHAUL  ) 
  28. REMOVE ENGINE MOUNTING INSULATOR REAR NO. 1 
    1. Remove the 4 bolts and engine mounting insulator rear No. 1.
      Fig 17: Removing Engine Mounting Insulator Rear No. 1
      G02963346Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  29. REMOVE TORQUE CONVERTER CLUTCH ASSY 
  30. INSPECT TORQUE CONVERTER CLUTCH ASSY (SEE  INSPECTION   ) 

    SST 09350-32014 (09351-32020)

  31. INSTALL TORQUE CONVERTER CLUTCH ASSY 
    1. Install the torque converter clutch to the automatic transmission.
    2. Using calipers and a straight edge, measure dimension A between the transmission and the end surface of the drive plate.
      Fig 18: Measuring Dimension A Between Transmission & End Surface
      G02963347Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using calipers and a straight edge, measure the dimension B shown in Fig 19 and check that B is greater than A measured in (b).

      Standard: A + 1 mm or more 

      Fig 19: Measuring Dimension B Using Calipers & Straight Edge
      G02963348Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. INSTALL ENGINE MOUNTING INSULATOR REAR NO. 1 
    1. Install the engine mounting insulator rear and 4 bolts to the automatic transmission.

      Torque: 65 N.m (663 kgf.cm, 48 ft.lbf) 

      Fig 20: Installing Engine Mounting Insulator Rear No. 1
      G02963349Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  33. INSTALL TRANSFER ASSY (SEE  OVERHAUL  ) 
  34. INSTALL TRANSMISSION CONTROL CABLE BRACKET NO. 1 
    1. Install the transmission control cable bracket No. 1 with 2 bolts.

      Torque: 25 N.m (255 kgf.cm, 19 ft.lbf) 

      Fig 21: Installing Transmission Control Cable Bracket No. 1
      G02963350Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  35. INSTALL AUTOMATIC TRANSMISSION ASSY 
    1. Install the automatic transmission and 10 bolts to the engine.

      Torque: 

      • 17 mm head: 71 N.m (720 kgf.cm, 53 ft.lbf) 
      • 14 mm head: 37 N.m (380 kgf.cm, 27 ft.lbf) 
      Fig 22: Installing Automatic Transmission Bolts To Engine
      G02963351Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the 6 torque converter clutch mounting bolts.

      Torque: 48 N.m (490 kgf.cm, 35 ft.lbf) 

    HINT:

    First install black colored bolt and then the 5 bolts.

    Fig 23: Installing Torque Converter Clutch Mounting Bolts
    G02963352Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  36. INSTALL FLYWHEEL HOUSING UNDER COVER 
    1. Install the flywheel housing under cover and bolt.

      Torque: 18 N.m (184 kgf.cm, 13 ft.lbf) 

      Fig 24: Installing Flywheel Housing Under Cover
      G02963353Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  37. CONNECT WIRE HARNESS 
    1. Install the wire harness with the bolt.

      Torque: 8.0 N.m (83 kgf.cm, 71 in.lbf) 

      Fig 25: Connecting Wire Harness
      G02963354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  38. INSTALL TRANSFER BREATHER HOSE SUB-ASSY 
    1. Install the transfer breather hose sub-assy.

    HINT:

    The breather hose bracket is tightened together with the transmission housing.

    Fig 26: Installing Transfer Breather Hose Sub-Assy
    G02963355Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  39. CONNECT CONNECTOR 
    1. Connect the speed sensor SP2 connector.
    2. Connect the transmission wire connector.
    3. Connect the park/neutral position switch assy connector.
    4. Connect the temperature sensor connector.
    5. Connect the speedometer sensor connector.
    6. Connect the indicator No. 1 switch connector.

      (Low)

    7. connect the indicator No. 2 switch connector.

      (Neutral)

    8. Connect the indicator No. 3 switch connector.

      (Diff. lock)

    9. Connect the transfer shift actuator connector.

      (w/ transfer shift actuator)

  40. INSTALL FRAME CROSSMEMBER SUB-ASSY NO. 3 
    1. Install the frame crossmember sub-assy No. 3 with 4 bolts and 4 nuts.

      Torque: 72 N.m (735 kgf.cm, 53 ft.lbf) 

    2. Install the frame crossmember sub-assy No. 3 with 4 bolts.

      Torque: 18 N.m (184 kgf.cm, 13 ft.lbf) 

      Fig 27: Installing Frame Crossmember Sub-Assy No. 3
      G02963356Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  41. CONNECT TRANSMISSION CONTROL CABLE ASSY 
    1. Install the nut and clip on the transmission control cable assy.

      Torque: 12 N.m (122 kgf.cm, 9 ft.lbf) 

      Fig 28: Installing Nut & Clip On Transmission Control Cable Assy
      G02963357Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  42. INSTALL OIL COOLER OUTLET TUBE NO. 1 
    1. Temporarily install the oil cooler outlet tube No. 1.
    2. Temporarily install the oil cooler inlet tube No. 1.
      Fig 29: Installing Oil Cooler Outlet/Inlet Tube No. 1
      G02963358Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Install the 2 clamps and 2 bolts.

      Torque: 5.0 N.m (51 kgf.cm, 43 in.lbf) 

    4. Using SST, tighten the oil cooler outlet tube No. 1

      SST 09023-12701

      Torque: 34 N.m (346 kgf.cm, 25 ft.lbf) 

      Fig 30: Tightening Oil Cooler Outlet Tube No. 1
      G02963359Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  43. INSTALL OIL COOLER INLET TUBE NO. 1 
    1. Using SST, tighten the oil cooler inlet tube No. 1.

      Torque: 34 N.m (346 kgf.cm, 25 ft.lbf) 

      SST 09023-12701

  44. INSTALL FRONT SUSPENSION MEMBER BRACKET LH 
    1. Install the front suspension member bracket LH with 4 bolts.

      Torque: 33 N.m (336 kgf.cm, 24 ft.lbf) 

      Fig 31: Installing Front Suspension Member Bracket LH
      G02963360Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  45. INSTALL FRONT SUSPENSION MEMBER BRACKET 
    1. Install the front suspension member bracket with 4 bolts.

      Torque: 33 N.m (336 kgf.cm, 24 ft.lbf) 

  46. INSTALL PROPELLER SHAFT ASSY (SEE  OVERHAUL  ) 
  47. INSTALL PROPELLER SHAFT ASSY FRONT (SEE  OVERHAUL  ) 
  48. ADJUST SHIFT LEVER POSITION (SEE  ADJUSTMENT   ) 
  49. INSTALL EXHAUST PIPE ASSY (SEE  REMOVAL & INSTALLATION AND DISASSEMBLY & REASSEMBLY  ) 
  50. INSTALL OXYGEN SENSOR (SEE  REMOVAL & INSTALLATION AND DISASSEMBLY & REASSEMBLY  ) 
  51. INSTALL ENGINE UNDER COVER SUB-ASSY NO. 1 

    Torque: 29 N.m (296 kgf.cm, 21 ft.lbf) 

  52. INSTALL ENGINE UNDER COVER ASSY REAR 

    Torque: 29 N.m (296 kgf.cm, 21 ft.lbf) 

  53. INSTALL TRANSFER HIGH & LOW SHIFT LEVER ASSY 
    1. Using needle nose pliers, install the transfer high & low shift lever assy with snap ring.

    HINT:

    Apply MP grease to the transfer shift lever.

    Fig 32: Installing Transfer High & Low Shift Lever Assy
    G02963361Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  54. INSTALL CONSOLE PANEL UPPER ASSY 
  55. INSTALL CONSOLE UPPER PANEL GARNISH NO. 2 
  56. INSTALL CONSOLE UPPER PANEL GARNISH NO. 1 
  57. INSTALL SHIFT LEVER KNOB SUB-ASSY 
    1. Install the shift lever knob on the shift lever.
    2. Install the floor shift lever knob on the shift lever.
  58. ADD AUTOMATIC TRANSMISSION FLUID (SEE  AUTOMATIC TRANSMISSION FLUID   ) 
  59. INSPECT AUTOMATIC TRANSMISSION FLUID (SEE  AUTOMATIC TRANSMISSION FLUID   ) 
  60. INSTALL BATTERY NEGATIVE TERMINAL 
  61. INSPECT SHIFT LEVER POSITION (SEE  ADJUSTMENT   ) 
  62. CHECK FOR EXHAUST GAS LEAKS (SEE  REMOVAL & INSTALLATION AND DISASSEMBLY & REASSEMBLY  ) 
scientia non olet · About LEMON Manuals