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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 750 (Transfer Case - STEYR) >> Repair Instructions >> Drive Pinion Flange/Yoke and/or Oil Seal Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
  1. Use the J 36797  in order to install a new oil seal (2) into the extension housing.
    Fig 1: Installing Oil Seal
    G01485216Courtesy of GENERAL MOTORS CORP.
  2. Position the flange and the extension housing assembly into a press.
  3. Lightly lubricate the splines on the driven shaft.
  4. Press the flange (1) onto the driven shaft.
    Fig 2: Pressing Flange Onto Driven Shaft
    G01485217Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  5. Install the extension housing assembly to the J 44755  (2) using M8 x 1.25 bolts (1).

    Tighten 

    Tighten the bolts to 25 N.m (18 lb ft).

    Fig 3: Installing Extension Housing Assembly
    G01485218Courtesy of GENERAL MOTORS CORP.
  6. Install the flange nut (1) onto the driven shaft.

    Tighten 

    Tighten the flange nut to 250 N.m (185 lb ft).

  7. Remove the extension housing assembly from the J 44755. 
    Fig 4: Installing Flange Nut
    G01485219Courtesy of GENERAL MOTORS CORP.
  8. Measure the rotating torque of the driven shaft in both directions.

    Specification 

    The driven shaft and bearings should have a rotating torque of 1.5 N.m (13 lb in).

    Fig 5: Measuring Driven Shaft Rotating Torque
    G01485220Courtesy of GENERAL MOTORS CORP.
  9. Apply sealant GM P/N United States 12346004 GM P/N Canada 10953480, or equivalent to both sides of the shim.
  10. Align the reference marks and install the shim (2) to the transfer case.
  11. Install the extension housing (1) and bolts (3) to the shim and transfer case.

    Tighten 

    Tighten the extension housing bolts to 32 N.m (24 lb ft).

    Fig 6: Installing Transfer Case Bolt
    G01485221Courtesy of GENERAL MOTORS CORP.
  12. Install the extension housing drain plug (1) and gasket to the extension housing.

    Tighten 

    Tighten the plug to 32 N.m (24 lb in).

  13. Remove the extension housing fill plug (2) and gasket.
  14. Fill the extension housing with gear oil. Refer to TRANSFER CASE FLUID REPLACEMENT   . 
  15. Install the extension housing fill plug and gasket.

    Tighten 

    Tighten the plug to 28 N.m (21 lb in).

    Fig 7: Installing Extension Housing Drain Plug
    G01485222Courtesy of GENERAL MOTORS CORP.
  16. Install the vent hose (2) and clamp (1). Refer to VENT HOSE ASSEMBLY REPLACEMENT   . 
  17. Install the propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT in Propeller Shaft.
  18. Lower the vehicle.
    Fig 8: Installing Vent Hose And Clamp
    G01485223Courtesy of GENERAL MOTORS CORP.
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