2006 Lexus IS 250 AWDFACTORY OEM SERVICE PROCEDURE

Transfer Assembly: Reassembly

  1. INSTALL CENTER DIFFERENTIAL CLUTCH CONTROL VALVE 
    1. Install the center differential clutch control valve sleeve, transfer direct clutch modulator valve spring, center differential clutch control valve and center differential clutch control valve plug to the transfer upper valve body.
      Fig 1: Installing Center Differential Clutch Control Valve
      G04046799Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. While pushing on the center differential control valve plug, install the center differential clutch control valve seat on the transfer upper valve body.
      Fig 2: Installing Center Differential Clutch Control Valve Seat
      G04046800Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL TRANSFER SOLENOID MODULATOR VALVE 
    1. Install the low-high shift valve compression spring, transfer solenoid modulator valve and transfer solenoid modulator valve plug to the transfer upper valve body.
      Fig 3: Installing Transfer Solenoid Modulator Valve
      G04046801Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. While pushing on the transfer solenoid modulator valve plug, install the transfer solenoid modulator valve plug seat on the transfer upper valve body.
    Fig 4: Installing Transfer Solenoid Modulator Valve Plug Seat
    G04046802Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL TRANSFER VALVE BODY COVER 
    1. Install the solenoid oil strainer to the transfer valve body cover.
    2. Install the transfer valve body cover and upper transfer valve body plate to the transfer upper valve body.
      Fig 5: Installing Transfer Valve Body Cover
      G04046803Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Install the 6 bolts.

    Torque: 6.4 N*m (65 kgf*cm, 57 in.*lbf) 

    HINT:

    Bolt length:

    • Bolt A: 35 mm (1.38 in.)
    • Bolt B: 20 mm (0.79 in.)
    Fig 6: Installing Bolts
    G04046804Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSTALL TRANSFER CONTROL SOLENOID 
    1. Install the transfer control solenoid and solenoid lock plate to the transfer upper valve body with the bolt.

    Torque: 6.4 N*m (65 kgf*cm, 57 in.*lbf) 

    HINT:

    Install the solenoid lock plate into the cutout on the transfer control solenoid.

    Fig 7: Installing Transfer Control Solenoid
    G04046805Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSTALL TRANSFER DRIVE SPROCKET BEARING 
    1. Using SST and a press, install a new transfer drive sprocket bearing to the transfer drive sprocket.

      SST 09950-70010 (09951-07100), 09950-60010 (09951-00640), 09316-20011 

      Fig 8: Installing Transfer Drive Sprocket Bearing Using SST (1 Of 2)
      G04046806Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using SST and a press, install a new transfer drive sprocket bearing to the transfer drive sprocket.

    SST 09316-60011 (09316-00011) 

    NOTE: Install the transfer drive sprocket bearing with the shield facing upward.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.