Tools Required
J 42058 Frame Adapter Clamp
Removal Procedure
Caution: Refer to Approved Equipment for Collision Repair Caution in the Preface section.
- Disable the SIR system. Refer to
SIR Disabling and Enabling
in SIR.
- Disconnect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine Electrical.
- Remove all related panels and components.
- Remove or reposition the wiring to avoid damage.
- Repair as much of the damage as possible to the factory specifications. Refer to
Dimensions - Body
and to
Measurements - Underbody
.
- Use J 42058
to secure the vehicle if pulling and straightening is required.
- Note the location and remove the sealers and anti-corrosion materials from the repair area. Refer to
Anti-Corrosion Treatment and Repair
in Paint and Coatings.
- Apply heat and pry apart to separate the impact bar from the front panel.
- Trim the front wheelhouse and the front end panel as necessary to access the top impact bar welds.
Important: Do not cut into the frame rails.
- Cut the welds around the perimeter of the frame rail ends. Cut the welds favoring the impact bar side of the joint.
- Remove the damaged impact bar.
- Extract pieces of the impact bar which are left attached to the rail ends.
- Straighten and deburr the rail ends. Keep the perimeter and shape of the rail end as original as possible.
Installation Procedure
- Temporarily position the impact bar for proper fit and alignment.
- Clean and prepare all of the welded mating surfaces.
- Apply 3M weld-thru coating P/N 05916 or equivalent as necessary and to the inside of the rail ends.
Important: DO NOT top coat the bonding surface of the front bar. Use primer only on bonding surfaces. Refer to adhesive manufacturer's recommendations.
- Clean and prepare all bonding mating surfaces according to adhesive manufacturer's recommendations.
- Apply a consistent bead of structural adhesive to the top impact bar to bond to the front panel. Refer to
Sheet Molded Compound (SMC) Panel Bonding
.
- Position the bumper impact bar to the vehicle using three-dimensional measuring equipment. Refer to
Dimensions - Body
and to
Measurements - Underbody
.
Important: If no trace of the original welds is present, follow the pattern specified for welding the side rails to the impact bar.
- Using a metal inset gas (MIG) welder, stitch weld the front bar to the frame rail ends.
- Apply the sealers and anti-corrosion materials to the repair area. Refer to
Anti-Corrosion Treatment and Repair
in Paint and Coatings.
- Paint the repair area. Refer to
Basecoat/Clearcoat Paint Systems
in Paint and Coatings.
- Install all related panels and components.
- Connect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine Electrical.
- Enable the SIR system. Refer to
SIR Disabling and Enabling
in SIR.