Assist Step Replacement Diamond Edition

1. Remove 6 nuts and 3 U-bolts securing the assist step assembly to the mounting brackets.
2. Remove the plastic end caps from the assist step assembly if required.

2.1.	Remove the 3 screws from the assist step assembly.

2.2.	Remove the plastic end cap by pulling the cap straight out of the step assembly.

3. Remove the plastic step pads if required by breaking the plastic pad from the assist step assembly.

1. Install new plastic step pads to the assist step assembly by pressing the new pad into place.
2. Install the plastic end cap to the assist step assembly.

2.1.	Install the plastic end cap by pressing the cap straight into the assist step assembly.

2.2.	Install 3 screws into the step assembly.

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 assist step assembly to the mounting brackets with 3 U-bolts and 6 nuts.

Tighten
Tighten the step assembly nuts to 20 N·m (15 lb ft).

Assist Step Replacement ZR5

1. Remove 8 nuts (1) and 4  U-bolts (3) securing the assist step assembly to the mounting brackets.
2. Remove the 11 nuts (2) and 4 brackets.
3. Remove the plastic end caps from the assist step assembly, if required.

3.1.	Remove the 3 screws from the assist step assembly.

3.2.	Remove the plastic end cap by pulling the cap straight out of the step assembly.

4. Remove the plastic step pads, if required, by breaking the plastic pad from the assist step assembly.

1. Install new plastic step pads to the assist step assembly by pressing the new pads into place.
2. Install the plastic end cap to the assist step assembly.

2.1.	Install the plastic end cap by pressing the cap straight into the assist step assembly.

2.2.	Install 3 screws into the step assembly.

Notice: Refer to Fastener Notice in the Preface section.

3. Install the 4 brackets and 11 nuts (2).

Tighten
Tighten to 35 N·m (26 lb ft).

4. Install the assist step assembly to the mounting brackets with 4 U-bolts (3) and 8 nuts (1).

Tighten
Tighten the step assembly nuts to 20 N·m (15 lb ft).




5. If the studs are bent or missing, use a center punch at the center of the missing location. Using a 12.7 mm (0.5 in) drill, drill a hole.
6. Install a rivnut into the frame.
7. Install bolt (1) in rivnuts.

Tighten
Tighten to 35 N·m (26 lb ft).