GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Blazer - 2WD 🢒 General Information 🢒 General Information 🢒 Transmission Support Replacement

Transmission Support Replacement RWD

Removal Procedure

    Object Number: 547855 Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Install the transmission jack to the transmission and support the transmission.
  3. Disconnect the transmission wiring harness from the transmission support , if necessary.
  4. Remove the transmission mount to the transmission support stud nut.

    5. Object Number: 594833 Size: SH
  5. Remove the catalytic converter hanger bracket from the transmission support mounting bolt, if necessary.

    6. Object Number: 546403 Size: SH
  6. Remove the transmission support to the frame nuts, bolts, and reinforcements.
  7. Remove the transmission support.

Installation Procedure

    Object Number: 546403 Size: SH
  1. Install the transmission support.

    2. 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.

  2. Install the transmission support to the frame nuts, bolts, and reinforcements.

    3. Tighten
    Tighten the transmission support to the frame nuts to 54 N·m (40 lb ft).


    Object Number: 594833 Size: SH
  3. Install the catalytic converter hanger bracket to the transmission support mounting bolts, if necessary.

    4. Tighten
    Tighten the catalytic converter hanger bracket to the transmission support mounting bolts to 17 N·m (13 lb ft).


    Object Number: 547855 Size: SH
  4. Install the transmission mount to the transmission support stud nut.

    5. Tighten
    Tighten the transmission mount to the transmission support stud nut to 57 N·m (42 lb ft).

  5. Connect the transmission wiring harness to the transmission support , if necessary.
  6. Remove the transmission jack from the transmission.
  7. Lower the vehicle.

Transmission Support Replacement 4WD, ZR2

Removal Procedure

    Object Number: 1342798 Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the transmission mount shield bolts, if equipped.
  3. Remove the transmission mount shield, if equipped.

    4. Object Number: 547862 Size: SH
  4. Install the transmission jack to the transmission and support the transmission.
  5. Disconnect the transmission wiring harness from transmission support, if necessary.
  6. Remove the transmission mount to the transmission support stud nut or nuts.
  7. Remove the catalytic converter hanger bracket from the transmission support, if necessary.

    8. Object Number: 546417 Size: SH
  8. Remove the transmission support to the frame nuts and bolts.

    9. Object Number: 546410 Size: SH
  9. Remove the transmission support to the frame nuts and bolts, ZR2.
  10. Remove the transmission support.

Installation Procedure

    Object Number: 546410 Size: SH
  1. Install the transmission support.

    2. 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.

  2. Install the transmission support to the frame nuts and bolts, ZR2.

    3. Tighten
    Tighten the transmission support to the frame nuts to 54 N·m (40 lb ft).


    Object Number: 546417 Size: SH
  3. Install the transmission support to the frame nuts and bolts.

    4. Tighten
    Tighten the transmission support to the frame nuts to 54 N·m (40 lb ft).

  4. Install the catalytic converter hanger bracket to transmission support, if necessary.

    5. Tighten
    Tighten the catalytic converter hanger bracket to the transmission support mounting bolts to 17 N·m (13 lb ft).


    Object Number: 547862 Size: SH
  5. Install the transmission mount to the transmission support stud nut or nuts.

    6. Tighten
    Tighten the transmission mount to the transmission support stud nuts to 57 N·m (42 lb ft).

  6. Connect the transmission wiring harness to the transmission support , if necessary.
  7. Remove the transmission jack from the transmission.

    8. Object Number: 1342798 Size: SH
  8. Install the transmission mount shield, if equipped.
  9. Install the transmission mount shield bolts, if equipped.

    10. Tighten

        • Tighten the transmission mount shield front bolts to 50 N·m (37 lb ft).
        • Tighten the transmission mount shield rear bolts to 33 N·m (24 lb ft).
  10. Lower the vehicle.