Center Pillar Outer Panel Reinforcement Replacement

/ 9-4x / 2011 / 8. Body / Body / Adjustment/replacement / Center Pillar Outer Panel Reinforcement Replacement

Removal Procedure

Note
The service B-Pillar will come as a complete assembly and the center B-Pillar Reinforcement is constructed of ultra high strength steel (martensitic) and can not be sectioned. It can only be replaced as a one piece unit.

Disable the SIR system. Refer to SIR Disabling and Enabling .

Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

Remove all related panels and components (1).

Repair as much of the damaged area as possible. Refer to Dimensions - Body .

Remove the sealers and anti-corrosion materials from the repair area, as necessary. Refer to Anti-Corrosion Treatment and Repair .

Note
Note the number and location of the factory welds for installation of the inner pillar lock front door.

Locate and drill out all the necessary factory welds (1).

Remove the Center B-Pillar from the factory seams (1).

Installation Procedure

Note
If the location of the original plug weld holes can not be determined, space the plug weld holes every 40 mm (1 in) apart.

Drill 8 mm (5/16 in) plug weld holes in the service part as necessary in the corresponding locations noted on the original panel. (1)

Prepare all mating surfaces for welding as necessary.

Apply GM-approved Weld-Thru Coating or equivalent to all mating surfaces. Refer to Anti-Corrosion Treatment and Repair .

Position the service part on the vehicle using 3-dimensional measuring equipment. Clamp the part in place.

Plug weld accordingly (1).

Clean and prepare all welded surfaces.

Apply appropriate sealing and rust inhibitor products on the repair surface.

Paint the repaired surface. See Basecoat/Clearcoat Paint Systems

Fit the relevant sheet metal parts and components.

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