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courtesy of Wes Grueninger
The door hinge stops on K-bodies (and, probably, E-bodies) are totally friction-based. A little metal tab rides up a metal 'ramp,' which gives the door some resistance while opening it, and when it reaches the end of the ramp, it 'pops' down, giving the door a detent at full-open so that a strong wind won't send it slamming shut while you're getting into the vehicle.
But with time the grease used on the friction surfaces of these door hinges wears off or is washed off by overzealous car washes, meaning that there are now two metal pieces rubbing together without any lubrication. And in just about any situation, most people will agree, whenever there is a large amount of friction, lubrication is A Good Thing <tm>.
So what I did was to use some Brakleen to clean off the wear surfaces, then coat both the 'ramp' and the tab with anti-seize compound. This is very easy to do for the back doors, where the hinges are exposed, but to do the front doors requires using an array of ice picks to painstakingly insert some anti-seize compound onto the hinge's friction surfaces.
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