Removal Procedure

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Remove all of the related panels and components.
Remove any excess sealer surrounding the existing hinge and scribe the location of the hinge on the hinge pillar.
Lightly hand-sand the existing hinge with 100 grit or finer sandpaper in order to locate the 4 welds that attach the hinge to the door.
Important: Punch the center of the weld so that as much of the weld as possible is removed during the drilling.
Center punch each of the 4 weld marks on the original hinge.
Important: Do not drill into the hinge pillar.

Fig 1: Removing Hinge Rear Door Body Side

Courtesy of GENERAL MOTORS CORP.

Drill through the hinge only at each punch location. Use a 13 mm (1/2 in) rotabroach hole saw or the equivalent.
Remove the hinge. If necessary, use a chisel in order to separate the hinge from the pillar.
Remove all of the remaining weld from the pillar surface in order to ensure a flush fit of the service hinge.

Fig 2: Punching Centre Of Hinge

Courtesy of GENERAL MOTORS CORP.