Service Procedure 3
Figure No. 5:
With the tailgate closed and the tailgate window lowered, look down the vertical side of the tailgate on both ends. What you should see is the tailgate wedges, shown in Figure 5, displacing the spring loaded body mounted wedges shown in Figure 3. If one or both of the body mounted wedges are not displaced, shim the tailgate mounted wedge(s) with 1 mm or 2 mm shims (P/N 15659205 1 mm, P/N 20093974 2 mm). If both spring loaded wedges are displaced then do nothing to this area.
To shim the wedges:
1) Locate the wedges shown on Figure 5.
2) Remove the wedges and retain existing shims. Begin with 1 mm shims to prevent excess shimming and insert the width of shims necessary to slightly displace wedge(s).