I believe it is the fiberglass on the doors in the hinge areas that are weak and they begin to flex because of the weight of the door, which in turn causes the doors to sag.
My doors aren't sagging yet, but I know that it is not a fun or simple thing to fix properly. Something along the lines of removing the door, taking it apart, then glassing it on the inside to strengthen it needs to be done.
Unless the door is damaged its a hinge & pin replacement & adjusting the door. If the door is damaged then you get into the reglassing it & what not.
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minor necro'ing, but i'm having a similar problem. my lower door pin is shot and causing trouble when opening/closing door. I can't for the life of me figure out where the hinge and bushing kit is on rock auto. I know it's there somewhere just can't track it down.
anybody have a link for it? or a step by step for the directory for it on the site? Google gives me a link for it with "Door hinge pin and bushing kit" highlighted, but clicking on it just goes to the top menu for firebirds.
Just Buy a whole new door with the same paint I bought a 95 trans am door for my red 02 T/A fits and paint matches like a champ+ all the internals work flawlessly. Although shipping is more than the door -_-
Crap, I might have to buy a whole new lower hinge then. Like I said before I'm having a door pin problem that's not allowing the door to open close easily/quietly. Here is a picture of my issue:
You can see that the bottom door pin where the hinge part that holds the door open at certain angles is no longer round. not really sure how it happened though. Looks like it somehow chipped off.
You dont need a whole hinge to fix that. i just replaced the pin and detent roller on my car. It had grooves worn in it that caused the door to click and pop when opening and closing. if the door is sagging then maybe but the pin and roller are replaceable on the lower hinge. i got the parts for $9.22 plus shipping from partstaxi.
I found the part numbers on here somewhere, search roller detent.
EDIT: found them...
20262500 Front door Lock and hardware Hinge Pin Lower
20058035 Door Lock and hardware Lower hinge Bushing Bushing Back
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