GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Driveline/Axle 🢒 Rear Drive Axle 🢒 Two Speed Rear Axle Shift Quick Release Valve Replacement

Removal Procedure

    Object Number: 199137 Size: MH
  1. Apply the parking brake.
  2. Block the wheels.
  3. Drain all of the air reservoirs. Refer to Air Brake Reservoir Draining .
  4. Remove the air lines at the two-speed rear axle shift quick release valve. Refer to Air Brakes.
  5. Remove the following components from the two-speed rear axle shift quick release valve:
    6. • The nuts (1)
    • The washers (2)
    • The bolts (5)
  6. Remove the two-speed rear axle shift quick release valve (4) from the left side frame side rail (3).
  7. Inspect the air lines for the following conditions:
    8. • Damage
    • Kinks
    • Wear
  8. Repair or replace the air lines as needed. Refer to Hose and Line Replacement - Nylon Push-In Type Fitting .

Installation Procedure

    Object Number: 199137 Size: MH
  1. Install the two-speed rear axle shift quick release valve (4) onto the left side frame side rail (3).

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the following components to the two-speed rear axle shift quick release valve:
    3. • The bolts (5)
    • The washers (2)
    • The nuts (1)

    Tighten
    Tighten the nuts (1) to 22 N·m (16 lb ft).

  3. Install the air lines at the two-speed rear axle shift quick release valve (4). Refer to Hose and Line Replacement - Nylon Push-In Type Fitting .
  4. Start the engine. Charge the system to the air compressor governor cutout point.
  5. Stop the engine.
  6. Inspect for air leaks using a soap solution.
  7. Verify proper operation of the two speed rear axle.
  8. Remove the wheel blocks.