Door Hinge Rebuild

I worked for used car dept' at a ford dealership late 80s into early 90s. Replaced a lot of hinge bushings in Regals, Mustangs, you name it. Parts dept manager at the GM dealer told me GM sells about 10 thousand of these little bushings per year. Same applies to Ford. Even high end Cadillac and Lincoln had the same pizzy little bushings in their hinges. The weight of the door on such a short and thin walled bushing is one factor but the pressure that comes from the detent spring is another additional factor. Thats why the bushings held up fairly well in upper hinges but failed regularly in lower hinges. And if its not repaired before the hole in the steel becomes egg shaped, a new bushing is a temporary fix. The new bushing will crack.
In a Toyota, the detent mechanism is a third assembly mounted between the two hinges. Smarter? Yes but it is a expensive bugger to replace when its worn out too.