To replace the electric window motor on a 1998 GMC SLT 4-door 4x4, first, remove the door panel by unscrewing any visible screws and gently prying it away from the door frame. Disconnect the electrical connector from the old motor and unfasten the motor from the regulator. Install the new motor by securing it to the regulator, reconnecting the electrical connector, and reassembling the door panel. Finally, test the window to ensure the motor operates correctly before reattaching all components.
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