Roadmaster 1992

Driveshaft

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Removal & Installation



At this time the manufacturer does not provide removal and installation procedures for this component. The following procedure is a guideline and may differ from the vehicle you are servicing.

  1. Before servicing the vehicle, refer to the Precautions Section.
    NOTE
    Disconnecting the negative battery cable on some vehicles may interfere with the functions of the on-board computer systems and may require the computer to undergo a relearning process, once the negative battery cable is reconnected.


    NOTE
    If working near and/or around the SRS system and components, be sure to properly disable the SRS system. See disarming/arming the SRS system.


    NOTE
    For vehicles equipped with OnStar (RPO UE1), with battery backup, the backup battery is a redundant power supply to allow limited ONStar functionality in the event of a main battery power disruption to the OnStar module (VCIM). Do not disconnect the main vehicle battery or remove the OnStar fuse with the ignition key in any position other than OFF. Retained accessory power should be allowed to time out or be disabled by opening the driver-s side door before disconnecting power. Disconnecting power to the module in any way while the ignition is ON or with the retained accessory power activated may cause activation of the OnStar backup battery system and will discharge and permanently damage the backup battery. Once the backup battery is activated it will stay on until it has completely discharged. The backup battery is not rechargeable and once it is activated, it must be replaced.

  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Raise and safely support the vehicle.
  6.  
  7. Matchmark the driveshaft at the front and rear.
  8.  
  9. Properly support the driveshaft.
  10.  
  11. Remove the rear retaining nuts/clips/bolts etc.
    NOTE
    There are three types of mounting attachments used for this vehicle.


    NOTE
    Use tape and wrap the universal joint ends to prevent the joint caps from separating from their mounting.


    NOTE
    Position a catch pan under the transmission tail shaft to catch transmission fluid after you remove the driveshaft from its mounting.



    Click image to see an enlarged view

    Fig. Driveshaft rear attachment types

  12.  
  13. Carefully pull the driveshaft from the transmission tail shaft.
  14.  
  15. Remove the driveshaft from the vehicle. Plug the opening at the transmission tail shaft to prevent transmission fluid loss.

    Click image to see an enlarged view

    Fig. Driveshaft and related components

  16.  

To install:


NOTE
Be sure to use new fasteners, as required.


NOTE
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread sealer are identified. Do not use paints, lubricants or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners.

  1. Installation is the reverse of the removal procedure.
  2.  
  3. Tighten the retaining bolts in an alternate sequence and to 16 ft. lbs.
  4.  
  5. Using the GM diagnostic scan tool or aftermarket equivalent reprogram the necessary systems and components. Be sure to follow the scan tool manufacturer-s directions.
  6.  

 
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