For 1990-2009 cars

### Removal Procedure

1. Block the wheels of the axle.
2. Drain the air pressure from the air springs.
3. Raise the frame of the vehicle in order to remove the load from the suspension.
4. Support the frame using jack stands.
5. Remove the locknuts (3) and the washers that connect the air spring (1) to the cross channel (2).
6. Remove the air line that connects to the air spring (1).
7. Remove the brass air fittings from the air spring (1).
8. Remove the locknuts (2) and the washers that connect the air spring (1) to the upper frame hanger.
9. Remove the air spring (1).

### Installation Procedure

1. Connect the air spring (1) to the air spring frame hanger.
2. Connect the air spring (1) to the cross channel (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.

3. Install the washers and the locknuts (3) that connect the air spring to the cross channel.

Tighten
Tighten the locknuts to 330 N·m (243 lb ft).

4. Install the washers and the locknuts (2) that connect the air spring (1) to the air spring frame hanger.

Tighten
Tighten the locknuts to 34 N·m (25 lb ft).

5. Install the brass air fitting to the air spring using a Teflon® thread seal.
6. Connect the air lines to the air springs.
7. Lower the frame of the vehicle.
8. Unblock the wheels.
9. Refill air into the system.