Removal Procedure
Important: The striker plate is mounted in a cage that allows some degree of adjustment
 independent of the outer panels position. Use body dimensions to ensure that
   the striker mounting location falls within the plates range of adjustment.
- Remove all related panels and components.
 
- Visually inspect and restore as much of the damage  as possible.
 
- Remove sealers and anti-corrosion materials  as necessary.
 
Important: Sectioning should be performed only in the recommended areas.
- Cut the reinforcement
 (3) panel 255 mm (10 in) from the lower edge of the door opening.
 
Important: When sectioning both the inner (3) and the outer panels (2) this should
 result in a 55 mm (2 3/16 in) offset in the sectioning joints.
- Remove the damaged center pillar reinforcement.
 
Installation Procedure
- On the service part (5),
 mark a horizontal line to leave a gap of one and one-half times the thickness
of the metal (6) at  the sectioning joint.
 
- Cut the  service reinforcement panel along this line.
 
- Cut  a 50 mm (2 in) piece from the unused portion
of the service part for a backing plate (5).
 
- Remove the flange  on each side of the backing plate (4) so that
it will fit behind the sectioning   joint.
 
- Drill 8 mm (5/16 in) holes  for plug welding in
the service part in the location noted from the original  panel.
 
- Drill holes for plug welding along the sectioning  cuts on both
the service part and the original panel.
 
- Locate these holes approximately 13 mm (½ in)
from  the edge of the sectioning cuts.
 
- Prepare the mating  surfaces and position the backing plates with
25 mm (1 in) of   the backing plate exposed, then plug weld.
Position  the service part to  overlap  the exposed 25 mm (1 in)
gaps between.
 
- Go back and complete the stitch weld. This will create solid joint
 with minimal  heat distortion.
 
- Clean and prepare  welded surfaces.
 
- Prime with two-part catalyzed primer.
 
- Apply sealers and anti-corrosion materials as necessary.
 
Important: Prior to refinishing, refer to GM 4901MD-99 Refinish Manual for
 recommended products. Do not combine paint systems. Refer to paint manufacturers
  recommendations.
- Install all related panels and components.