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GM Full-Size Trucks 1980-1987 Repair Guide
See Figures 1 and 2
Non-Stationary Door Glass
FIG : Fig. 1: Door window and regulator
FIG : Fig. 2: Removing the door glass
Manual Door Window Regulator
See Figure 3
A notch is provided in the sash panel to allow disengagement of the forward roller on the window regulator.
FIG : Fig. 3: Manual window regulator
Power Window Regulator and Motor
See Figure 4
FIG : Fig. 4: Power window regulator and motor
CAUTION Step 9 must be performed when the regulator is removed from the door. The regulator lift arms are under tension from the counterbalance spring and can cause serious injury if the motor is removed without locking the sector gear in position.