Door Hinge Installation HELP

[vernair]

I've searched around and can't seem to find a thread explaining how to install a door hinge. I bought my car door and it was (essentially) missing the upper door hinge. The problem is it seems as though the bolt holes aren't threaded and so the bolts would need nuts on the back BUT there's no access to the space from inside/below/above. Is my only option to cut open the kickpanel behind the AC vent?? I feel like I'm missing something pretty obvious here...

The truck is a 1971 GMC K2500 4x4 and here's a photo:

[elkniks]

Wow, that sucks. I would spend some time with a coat hanger or something first, but your right that last resort your going to have to cut a hole to get that plate with the threads in it.

[vernair]

Originally Posted by elkniks

Wow, that sucks. I would spend some time with a coat hanger or something first, but your right that last resort your going to have to cut a hole to get that plate with the threads in it.

Oh so there is a plate back there on the inside?? Maybe it dropped down. Ugh.
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[elkniks]

yep, there is a big thick steel plate with three threaded nuts that was captured up top but fell. I bet you can fish it out, or up then do some creative bolt holding as you install hinge and never remove again.

[70LonghornCST]

If you can fish it out, I would recommend drilling holes in the yellow indicated areas in the pic I attached. Then, insert all the bolts, then weld that puppy in place. That way if you ever do need to remove the hinge, you don't have that same problem. I guarantee you that the plat is at bottom section of that pillar. It'll be fun getting it out, but it's possible. Good luck!

[drewbert41]

Is that plate welded from the factory or does it just fall off if you remove the hinges?

[402Bowtie]

Originally Posted by drewbert41

Is that plate welded from the factory or does it just fall off if you remove the hinges?

There is a "cage" that is tack welded inside the pillar. The nuts float inside the cage and allow for door adjustment. Rust can cause the tack welds to come apart.

[HO455]

It's no big deal. Just get some friends over and have them flip the truck over and hold it until you get the bolts started. It's better if you drain the gas first.

[vernair]

Originally Posted by HO455

It's no big deal. Just get some friends over and have them flip the truck over and hold it until you get the bolts started. It's better if you drain the gas first.

You joke but I'm pretty much at that point.

So after no luck with the coat hanger, I drilled a hole towards the bottom and found NOTHING (except sadness). Then I got my little iphone in there and took a photo going UP - and there it was, bent up from where it was supposed to be and mangled. No idea how that could've happened.

Soooo...I'm on to plan b, which I'm not sure what that is just yet, but i'll report back - or if anyone has a bright idea, let me know.

[Ontcalimo]

You can cut all areas except top area of the pillar where L nut assembly retainer is welded in place inside pillar, in which it is tack welded inside the pillar wall. Then pry out area (like opening the top area (lid) of a tin canned food can) or just cut out the entire area.
Retrieve the L nut assembly (with magnet or hook) (since it is obvious it fell from the pillar). Then place L nut assembly back in place and pushed in tabs to secure it in place. If it fell with the retaining assembly too (which I doubt) then tack weld it back into place or tack weld needed areas. Do not weld L nut assembly as it needs to be loose for door hinge adjustment. Then push everything back in place and spot weld it. You can also try to cut another one from a donor's vehicle pillar and used the cutout as a template when cutting out yours and welding it back in place.

[elkniks]

Originally Posted by Ontcalimo

You can cut all areas except top area of the pillar where L nut assembly retainer is welded in place inside pillar, in which it is tack welded inside the pillar wall. Then pry out area (like opening the top area (lid) of a tin canned food can) or just cut out the entire area.
Retrieve the L nut assembly (with magnet or hook) (since it is obvious it fell from the pillar). Then place L nut assembly back in place and pushed in tabs to secure it in place. If it fell with the retaining assembly too (which I doubt) then tack weld it back into place or tack weld needed areas. Do not weld L nut assembly as it needs to be loose for door hinge adjustment. Then push everything back in place and spot weld it. You can also try to cut another one from a donor's vehicle pillar and used the cutout as a template when cutting out yours and welding it back in place.

X2

Eventually the carriage bolt heads are going to rip through the thin sheet metal post. Not trying to rain on anyone's parade here but it's going to be more work to fix the pulled out sheet metal in the future.