Figured I'd torment myself and replace my broken window regulator. Grilled out the rivets. Removed regulator. Swapped the motor. Replaced rivets with M6 bolts. Window seated in forward and aft guides yet binds as it goes up. And sometimes the goes up crooked causing it to bind. I don't see the regulators bowing but the motor is straining. Sprayed silicone on the guides. Sedan door.