[Zoomad75]

I'd shoot for the hinge pins first. After 20 plus years chances are you might have a couple that had already been replaced. Kits are $5 a shot to fix 1 hinge at the zone or other parts store. Take your time and make sure you line up the doors when you bolt it back on.

My example is on my 75 K5. My doors were so sloppy that you would have to slam the doors hard while lifting up to get it to shut. It had been like that before I got it as the driver side striker pin had been hit hard enough to crack the sheetmetal around it and bend the metal slightly. After a few hours of rebuilding the hinges and welding up cracks we spent the rest of the time aligning the doors. Two guys are best for this. One to hold the door and the other to cinch up the bolts. Once we finished the doors shut really good with no need to kick the door in to shut it. I don't have to worry about the pressure situation as my K5 is far from sealed tight.