Assist Step Replacement (Sierra Pro)

Assist Step Replacement (Sierra Pro)

Removal Procedure




1. With the aid of an assistant remove the following components:

1. The body mounts (1)
2. The washers

2. With an assistant, remove the assist step assembly from the vehicle.
3. Remove the lower body-mount cushion assemblies (2) from the vehicle.




4. Remove the assist step bracket bolts (1).
5. Remove the assist step brackets.

Installation Procedure






Important: Apply thread locker GM P/N 12345382 (Canadian P/N 10953489), to all bolt threads prior to assembly

1. Install assist step brackets.
2. Install the assist step bracket bolts (1).

Notice: Refer to Fastener Notice in Service Precautions.

3. Install assist step bracket nuts (2).

Torque the bolts to 50 N.m (37 lb ft)




4. Install the lower body-mount cushion assemblies (2) to the vehicle.
5. With an assistant, raise the assist step to the vehicle.
6. With an assistant, install the following:

1. The washers
2. The body mount bolts (1)

Torque bolts to 90 N.m (66 lb ft)