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-   -   Advice on door latch post repair (https://67-72chevytrucks.com/vboard/showthread.php?t=617369)

mpierce9 02-19-2014 11:09 PM

Advice on door latch post repair
 
I'm looking for advice on how to repair this.

The post for my driver side door to latch on to is. . . loose. The metal on the door jamb is split and won't hold the post in place. This results in the door not closing firm everytime.

Short of cutting the spot out and welding a new plate in, I'd like input on how to resolve this.


https://lh3.googleusercontent.com/-l...216_091947.jpg

https://lh3.googleusercontent.com/-v...216_092020.jpg

https://lh3.googleusercontent.com/-f...216_091936.jpg

Passenger side door, which is working great.
https://lh4.googleusercontent.com/-9...216_092257.jpg

mrolds88 02-19-2014 11:25 PM

Re: Advice on door latch post repair
 
I would cut a panel from a donor and weld in the new panel. The integrity of the metal around the latch pin has been compromised. And it is a safety issue. Do it right, do it once be done with it.

willett 02-20-2014 10:15 AM

Re: Advice on door latch post repair
 
Cut and weld is the best. If your really opposed to it cut a nice big plate out of 18 ga, drill your 1/2" hole and sandwich it behind the pillar with the pin.

Jonboy 02-20-2014 11:22 AM

Re: Advice on door latch post repair
 
There is a plate that is threaded to which the striker bolt goes in to. Unbolt the striker bolt, weld in your repair to the sheetmetal, and bolt the striker back in. I would probably replace the striker bolt while you are at it, and make sure it has the sleeve as well. Makes a huge difference in how the door latches.

mpierce9 03-02-2014 05:47 PM

Re: Advice on door latch post repair
 
So that bolt assembly fell out. Inside the pillar is a device I assume this latch bolt post screws into.

cadillac_al 03-03-2014 10:40 AM

Re: Advice on door latch post repair
 
What fell out? I was stumped the first time I read this but I think I would fix it like jonboy said. I have had that retainer plate behind the sheet metal fall out before and I can't remember for the life of me how I fixed it. I hope that isn't what happened to yours. In a perfect world you should be able to unbolt that latch post, fix the weakened sheet metal, and bolt the post back on.

mpierce9 03-03-2014 12:29 PM

Re: Advice on door latch post repair
 
The striker post fell out. Take a look at these:

https://lh6.googleusercontent.com/-E...303_102537.jpg


This is where it was. I'm trying to figure out how it physicall attached to the bracket inside the hole. It looks like the PO had this problem and just stuck it inside the sheetmetal and didn't physically attach it to anything.
https://lh6.googleusercontent.com/-k...303_102727.jpg

Same thing, just a different quality image.

https://lh3.googleusercontent.com/-_...303_102752.jpg

willett 03-03-2014 06:31 PM

Re: Advice on door latch post repair
 
Like I said before drill a plate and plate an place it on the back. Hold it in place by the nut tension. On the outside of the pillar you will see some shims. Remove a shim and find a peice of 4 x 4 sheetmetal the same thickness, drill that out and run the striker through it on the outside of the pillar. This is really the only conceivable way I can think of without actually welding it up.

ChevDog1 03-03-2014 07:25 PM

Re: Advice on door latch post repair
 
Quote:

Originally Posted by Jonboy (Post 6535180)
There is a plate that is threaded to which the striker bolt goes in to. Unbolt the striker bolt, weld in your repair to the sheetmetal, and bolt the striker back in. I would probably replace the striker bolt while you are at it, and make sure it has the sleeve as well. Makes a huge difference in how the door latches.

What are you using for "the sleeve"? Is this a factory part that falls off over time, or a fix that someone has figured out to make the doors latch better?

mrolds88 03-03-2014 08:07 PM

Re: Advice on door latch post repair
 
Since you are already this far (whether you wanted to be or not) I would cut a whole section out of another truck and weld in. Then all the bracketry and such will be in the right place and you will have no worries.

bigwheel15 03-03-2014 10:43 PM

Re: Advice on door latch post repair
 
A piece of pex tuning, 1/2 inch works perfect as a sleeve.

GM-power 03-04-2014 10:35 AM

Re: Advice on door latch post repair
 
Take your door off! No welding required. But really like mentioned before the best route is to cut out one from a donor and weld it in.

mpierce9 03-05-2014 05:24 PM

Re: Advice on door latch post repair
 
Quote:

Originally Posted by Jonboy (Post 6535180)
There is a plate that is threaded to which the striker bolt goes in to. Unbolt the striker bolt, weld in your repair to the sheetmetal, and bolt the striker back in. I would probably replace the striker bolt while you are at it, and make sure it has the sleeve as well. Makes a huge difference in how the door latches.

I'm having a difficult time realizing which piece is what based on some of these how tos. . .

You mention
Quote:

Originally Posted by Jonboy (Post 6535180)
There is a plate that is threaded to which the striker bolt goes in to.

Do you see that plate in the image below? From the bottom of the image up I see
  • The end of the thread of the striker post
  • The Plate you are referring to possibly?
  • Three Washers (or Shims)
  • The shaft of the striker post
  • The tip top of the striker post

https://lh6.googleusercontent.com/-E...303_102537.jpg

Assuming my bold text above is the plate you are refering to. . . How would I secure that to the inside of the truck?

Quote:

Originally Posted by Jonboy (Post 6535180)
weld in your repair to the sheet metal

Do you mean weld(attach) the piece you are referring to above on the inner side of the sheet metal. Then weld that sheet metal to the pillar of the truck?

Jonboy 03-05-2014 11:12 PM

Re: Advice on door latch post repair
 
The plate I was referring to would be what looks like a cross on the striker you have. I guess yours looks like it was caged in there. If you could remove the cage, get a larger piece of thick (at least 1/4") metal, drill and tap threads into it for the striker, and cut it to 4"x4" or so with the hole in the middle. This would let you use it as a backing, but have enough area to keep the sheet metal from cracking out. Seems like Blazers have a larger plate like that already.

mpierce9 03-23-2014 02:35 PM

Re: Advice on door latch post repair
 
ok. . I'm not good at welding. I've never welded before. I borrowed a welder from a buddy and practiced on a few piece of metal then I gave it a shot.

I opened up the hole where the original striker post fell out.
http://farm8.staticflickr.com/7342/1...683c6ce34e.jpg

I attached the cross shaped nut onto a piece of sheet metal. I believe this is 16 gauge. I practiced with 22 but felt that it was too flimsy.

http://farm8.staticflickr.com/7253/1...d33a2926_c.jpg

I cut a hole in the back to access the threads of the nut.

http://farm8.staticflickr.com/7295/1...68a6b2a712.jpg

Screwed the post in place.

http://farm4.staticflickr.com/3671/1...7f06c2ecae.jpg

Finally attached it to the car. This is obviously poor welding but it is attached extremely solid. I'm sure eventually it'll fall off again since the weld is so poor but i'll deal with that when I get there.

http://farm4.staticflickr.com/3734/1...3ab19389_z.jpg

willett 03-24-2014 01:07 AM

Re: Advice on door latch post repair
 
Way to go. Good enough! As long as your door latches


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