R 20 P/U 2WD V8-350 5.7L (1987)
Figure No. 8 - Closed Tailgate Window
9.
Window Centering - Loosen the two channel adjusting bolts on each side of the tailgate (see Figure No. 8). Close tailgate and run window up and
down. Open tailgate enough to access the adjustment bolts and tighten.
