GM 12472846
Hinge, Passenger Side

The first step to install a new rear door hinge on the body side involves removing every associated panel followed by removing all sealer from around the existing hinge and marking its position on the hinge pillar. A 100 grit or finer sandpaper should lightly sand the existing hinge to reveal its four door welds while you puncture the centers to help with drilling future removal steps. Apply center punches to the four weld marks on the original hinge without penetrating into the hinge pillar material. The hole drilling process requires a 13 mm (1/2 in) rotabroach hole saw to penetrate each punch mark on the hinge structure. After using a chisel to remove the hinge you must clean the pillar surface until it becomes level with the service hinge. Set the service hinge inside scribe marks and mark each stud position on the pillar before drilling pilot holes at the center punch marks. The first drilling step involves using a 3 mm (1/8 in) bit for drilling pilot holes at center punch locations but this needs to be followed by drilling 11.5 mm (29/64 in) holes at these same pilot locations for the studs. The procedure requires preparation of uncoated metal surfaces along with the use of an authorized anti-corrosion primer on these areas. Feed fish wire, GM P/N 15017229, through the hinge, the hinge stud hole, and out of the conduit hole in the pillar. Using the wire end on the stud part GM P/N 15017230 you should position the stud while holding the hinge's hole and removing the fish wire. After fitting the pillar with supplied nut GM P/N 11516746 draw the stud tight through each pillar hole before proceeding with other stud installments. Remove each of the service nuts before applying full-bodied caulk to the entire mounting surface of the hinge. Reinstall the pillar-mounted hinge by using the supplied nuts but tighten them to 25 N.m (18 lb ft). First clean all necessary surfaces before sealant application for refinishing purposes after which surfaces need finishing before reinstalling components and lining up their related panels.

Remove the hinge, using a chisel if necessary, and clear all remaining weld from the door surface for a flush fit of the service hinge.

A 13 mm (1/2 in) rotabroach hole saw.

Position the service hinge within the scribe marks and center punch each stud location on the hinge pillar.