Sagging driver's door

My driver's door appears to be sagging a little. When closing the door, the jamb striker makes contact with the top of the V of the latch mechanism (with a metal-on-metal "thunk"), unlike the passenger's door, where the striker makes contact between the V and on the rotating arm of the latch mechanism (with a little "tink", as the striker meets the latch arm). As the door latches, I can see the entire door shift up a little bit, and if I move the door to almost-closed-yet-not, I can grab the bottom of the door and lift it up just a little bit. This is especially irritating, as since the striker and latch are making improper contact on one edge of the latch mechanism (and not "floating", as with the passenger's side), the door is a lot more difficult to open/close (slam to close, really lean on it to open, to overcome this new friction).

What's the most proper (even if not the easiest) way to realign the door up just a bit, so that the striker and latch meet at the correct location? I figure it's either the door hinges, latch, or striker. I'm guessing the striker doesn't have any adjustment, the latch has very-little-to-almost-no adjustment, and that's going to leave the hinges (argh).

Any input welcome. Thanks!

its not uncommon for hinges to wear causing the door to sag.
not familure with your set up but door hinge pins & bushings
are replacable

Check your local Auto parts for the dorman section.

Familiar that this is a common issue with age, just tossing all that extra info out there, wasn't sure how much was make/model specific.

So you're saying I can disassemble the hinges, and put in new pins/bushings? I've replaced hinges before for just this issue (on other vehicle makes/models), yet never rebuilt a hinge. I'll check out the hinges again, and get a feel on how "rebuild-able" they are. Thanks!

Yeah, on GM you drive some new bushings in and a new pin, good as new......