GM Service Manual Online
For 1990-2009 cars only

Transmission Fluid Filler Tube and Seal Replacement 5.0, 5.7

Removal Procedure


    Object Number: 178886  Size: SH
  1. Remove the transmission oil lever indicator.
  2. Remove the air cleaner, if required.
  3. Remove the bolts, nuts and brackets that secure the oil level indicator tube to the engine.
  4. Remove the stud that secures the oil level indicator tube bracket to the transmission.
  5. Raise the vehicle.
  6. Remove the oil level indicator tube from the transmission.
  7. Remove the seal from the oil level indicator tube.

Installation Procedure


    Object Number: 178886  Size: SH
  1. Install the new seal into the transmission case.
  2. Install the oil level indicator tube into the seal and transmission case.
  3. Notice: 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 locking compound or sealant are identified in the service procedure. 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 in order to avoid damage to parts and systems.

  4. Install the stud that secures the oil level indicator tube bracket to the transmission.
  5. Tighten
    Tighten the bolt that secures the oil level indicator tube bracket to 47 N·m (35 lb ft).

  6. Lower the vehicle.
  7. Install the bolts, nuts and brackets that secure the oil level indicator tube to the engine.
  8. Tighten
    Tighten the bolts and nuts that secure the oil level indicator tube to the engine to 12 N·m (9 lb ft).

  9. Install the air cleaner, if required.
  10. Install the transmission oil level indicator.

Transmission Fluid Filler Tube and Seal Replacement 6.5L

Removal Procedure


    Object Number: 178881  Size: SH
  1. Remove the transmission oil lever indicator.
  2. Remove the air cleaner, if required.
  3. Remove the bolts, nuts and brackets that secure the oil level indicator tube to the engine.
  4. Remove the stud that secures the oil level indicator tube bracket to the transmission.
  5. Raise the vehicle.
  6. Remove the oil level indicator tube from the transmission.
  7. Remove the seal from the oil level indicator tube.

Installation Procedure


    Object Number: 178881  Size: SH
  1. Install the new seal into the transmission case.
  2. Install the oil level indicator tube into the seal and transmission case.
  3. Notice: 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 locking compound or sealant are identified in the service procedure. 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 in order to avoid damage to parts and systems.

  4. Install the stud that secures the oil level indicator tube bracket to the transmission.
  5. Tighten
    Tighten the bolt that secures the oil level indicator tube bracket to 47 N·m (35 lb ft).

  6. Lower the vehicle.
  7. Install the bolts, nuts and brackets that secure the oil level indicator tube to the engine.
  8. Tighten
    Tighten the bolts and nuts that secure the oil level indicator tube to the engine to 12 N·m (9 lb ft).

  9. Install the air cleaner, if required.
  10. Install the transmission oil level indicator.

Transmission Fluid Filler Tube and Seal Replacement 6.5L Turbo

Removal Procedure


    Object Number: 178880  Size: SH
  1. Remove the transmission oil lever indicator.
  2. Remove the air cleaner, if required.
  3. Remove the bolts, nuts and brackets that secure the oil level indicator tube to the engine.
  4. Remove the stud that secures the oil level indicator tube bracket to the transmission.
  5. Raise the vehicle.
  6. Remove the oil level indicator tube from the transmission.
  7. Remove the seal from the oil level indicator tube.

Installation Procedure


    Object Number: 178880  Size: SH
  1. Install the new seal into the transmission case.
  2. Install the oil level indicator tube into the seal and transmission case.
  3. Notice: 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 locking compound or sealant are identified in the service procedure. 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 in order to avoid damage to parts and systems.

  4. Install the stud that secures the oil level indicator tube bracket to the transmission.
  5. Tighten
    Tighten the bolt that secures the oil level indicator tube bracket to 47 N·m (35 lb ft).

  6. Lower the vehicle.
  7. Install the bolts, nuts and brackets that secure the oil level indicator tube to the engine.
  8. Tighten
    Tighten the bolts and nuts that secure the oil level indicator tube to the engine to 12 N·m (9 lb ft).

  9. Install the air cleaner, if required.
  10. Install the transmission oil level indicator.

Transmission Fluid Filler Tube and Seal Replacement 7.4L

Removal Procedure


    Object Number: 178885  Size: SH
  1. Remove the transmission oil lever indicator.
  2. Remove the air cleaner, if required.

  3. Object Number: 178879  Size: SH
  4. Remove the bolts, nuts and brackets that secure the oil level indicator tube to the engine.
  5. Remove the stud that secures the oil level indicator tube bracket to the transmission.
  6. Raise the vehicle.
  7. Remove the oil level indicator tube from the transmission.
  8. Remove the seal from the oil level indicator tube.

Installation Procedure


    Object Number: 178879  Size: SH
  1. Install the new seal into the transmission case.
  2. Install the oil level indicator tube into the seal and transmission case.
  3. Notice: 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 locking compound or sealant are identified in the service procedure. 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 in order to avoid damage to parts and systems.

  4. Install the stud that secures the oil level indicator tube bracket to the transmission.
  5. Tighten
    Tighten the bolt that secures the oil level indicator tube bracket to 47 N·m (35 lb ft).

  6. Lower the vehicle.

  7. Object Number: 178885  Size: SH
  8. Install the bolts, nuts and brackets that secure the oil level indicator tube to the engine.
  9. Tighten
    Tighten the bolts and nuts that secure the oil level indicator tube to the engine to 12 N·m (9 lb ft).

  10. Install the air cleaner, if required.
  11. Install the transmission oil level indicator.