GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C-Series Medium Duty Truck B7 🢒 Steering 🢒 Steering Wheel and Column - Standard 🢒 Steering Column Replacement

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable. Refer to Battery Replacement in Engine Electrical.
  2. Remove the steering wheel. Refer to Steering Wheel Replacement .
  3. Disconnect the shift cable from the column control lever, if the vehicle is equipped.

    4. Object Number: 306393 Size: SH
  4. Remove the pot joint bolt (1) from the steering shaft (2).
  5. Mark the relationship of the pot joint (4) to the steering shaft (2).

    6. Object Number: 306514 Size: SH
  6. Remove the bolts (3) and the nut (1) from the toe plate.

    7. Object Number: 306450 Size: MH
  7. Remove the lower dash cover screws (2) and cover (1).
  8. Remove the steering column harness at the connectors.
  9. Remove the upper column support bracket nuts (4) and washers (3).

    10. Remove the steering column assembly (3).


    Object Number: 376294 Size: SH
  10. Mount the steering column in a suitable holding fixture taking care not to damage the column.
  11. Remove the column support bracket bolts (2, 3, 5, 6).
  12. Remove the support (2).

Installation Procedure

    Object Number: 376294 Size: SH
  1. Mount the steering column in a suitable holding fixture taking care not damage the column.
  2. Install the support bracket to the column
  3. Install the support mounting bolts in the following sequence:
    4. 3.1. Install bolt (5)
    3.2. Install bolt (6)
    3.3. Install bolt (4)
    3.4. Install bolt (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. Insure proper alignment.

    5. Tighten
    Tighten the support mounting bolts to30 N·m (22 lb ft).


    Object Number: 306450 Size: MH
  5. Install the lower end of the steering column (6) through the dash opening.
  6. Guide the steering shaft into the pot joint.
  7. Align the marks which were made at the removal.

    8. Caution: In order to ensure the intended function of the steering column in a vehicle during a crash and in order to avoid personal injury to the driver, perform the following:

       • Tighten the steering column lower fasteners before you tighten the steering column upper fasteners. Failure to do this can damage the steering column.
       • Tighten the steering column fasteners to the specified torque. Overtightening the upper steering column fasteners could affect the steering column collapse.

  8. Install the upper support bracket washers and nuts (4).

    9. Finger tighten the nuts.

  9. Install the lower bolts (3) and nut (1).

    10. Object Number: 306514 Size: SH
  10. Install the pot joint bolt. The bolt must pass through the shaft undercut.

    11. Tighten

        • Tighten the pot joint nut to 62 N·m (45 lb ft).
        • Tighten the steering column bracket bolt/screw to 13 N·m (115 lb in).
        • Tighten the steering column support bracket nut to 27 N·m (20 lb ft).
  11. Install the wiring connectors to the steering column harness.
  12. Install the lower dash cover.
  13. Install the steering wheel. Refer to Steering Wheel Replacement .
  14. Connect the negative battery cable.