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-   -   69 Chevelle quarter panel replacement (https://www.hotrodders.com/forum/69-chevelle-quarter-panel-replacement-446954.html)

98camarod 08-14-2016 03:14 PM

69 Chevelle quarter panel replacement
 
I decided to do full quarters on my 69 Chevelle. I used my new HF plasma cutter to cut out my LH quarter today. I got the jamb all removed and part of the trunk. I'm concerned where it is mounted to the rocker. It looks like the awesome repairs before, they brazed the two together. So, I'm assuming that I need to replace the rocker as well to get the correct lineup.

Just looking for some input and any advice.

http://i88.photobucket.com/albums/k1...psxuqyzyjd.jpg
http://i88.photobucket.com/albums/k1...psuzwodfcw.jpg
http://i88.photobucket.com/albums/k1...psiwozvifx.jpg
http://i88.photobucket.com/albums/k1...psaumtnkqi.jpg

idrivejunk 08-14-2016 03:42 PM

You can just carefully grind away the braze material and proceed. What makes you say the rocker needs to go? I haven't had a 69 A-body apart but on F-bodies, that vertical inner B-pillar ties to the rocker at the bottom.

98camarod 08-14-2016 03:59 PM

Quote:

Originally Posted by idrivejunk (Post 3846378)
You can just carefully grind away the braze material and proceed. What makes you say the rocker needs to go? I haven't had a 69 A-body apart but on F-bodies, that vertical inner B-pillar ties to the rocker at the bottom.

It looks as if they brazed the quarter to the rocker. Isn't it supposed to be separate and the quarter is spot welded to the top of the rocker?

idrivejunk 08-14-2016 04:42 PM

Quote:

Originally Posted by 98camarod (Post 3846418)
It looks as if they brazed the quarter to the rocker. Isn't it supposed to be separate and the quarter is spot welded to the top of the rocker?

Indeed it is. Consider the braze as filler material that will grind right off. The quarter may have been replaced before and not welded there. Reason I said something about the pillar brace is that same guy might have whacked the rusty bottom off it. Heres a glance at a 69 Camaro in that spot, that I think I have secured in a decent way in the bottom pic. Ignore my tab on the right, but to the left you'll see where the brace was patched and the new quarter is sandwiched between it and the rocker.

Once you grind away the braze, you can pull the old flange off. At least it looks like in your pics that theres a layer over the rocker, stuck with braze. Get rid of that and go down to bare rocker. Maybe theres a Chevelle guy around with specifics on that body.

http://i1108.photobucket.com/albums/...psjpxwhsg4.jpg

http://i1108.photobucket.com/albums/...psmdsqnsiy.jpg

idrivejunk 08-14-2016 06:20 PM

2 Attachment(s)
It dawned on me that I do drive a 69 Grand Prix which is probably more similar. It hasn't been cut on. Looking at this, you can ingore my comment about the brace being whacked. Looks like thats how its made on the intermediate-sized body. The brazing could be GM, seriously. Or a repair guy. Either way, it will grind off and you can get it out of the way. Here are flash pics from through the quarter vent hole looking down. Perhaps they will help. I needed to screw the regulator back together anyway!

https://www.hotrodders.com/forum/atta...1&d=1471216557

https://www.hotrodders.com/forum/atta...1&d=1471216557

98camarod 08-14-2016 07:57 PM

Ok, I'll give it a shot tomorrow. The repair was a skin, not a full quarter. So the original stuff is still there on the rocker.

Too Many Projects 08-14-2016 08:54 PM

Quote:

Originally Posted by 98camarod (Post 3846865)
Ok, I'll give it a shot tomorrow. The repair was a skin, not a full quarter. So the original stuff is still there on the rocker.

Yep, the original is spot welded at the bottom to the rocker. Grind off the braze and drill out the spot welds and you should be good to go. Any accidental drill holes can be welded shut and ground smooth before the new quarter is attached.

98camarod 08-15-2016 06:48 PM

This is what I got:

http://i88.photobucket.com/albums/k1...psvvop5hgo.jpg
http://i88.photobucket.com/albums/k1...psajfd5inx.jpg

I guess I'll see what it looks like after I grind down the spot welds all the way across. Looks like it needs some metal.

Too Many Projects 08-15-2016 10:24 PM

How is the rest of rocker forward of the quarter? If that's OK, I would section in the piece that's rusted thru. If the whole thing is questionable, it's a LOT of work to replace the factory style rocker at the A pillar/cowl.

98camarod 08-16-2016 03:25 AM

All of that is good. I haven't looked into to rocker replacement, but what's the hassle up front?

Too Many Projects 08-16-2016 09:05 AM

This is a '67 I did and I'm not 100% certain the 68 up are the same, but I think they are. The outer rocker goes into the front pillar and is welded to many components inside. You would need to remove part of the floor pan and most, if not all the inner kick panel to access all the attachment points.

http://i1357.photobucket.com/albums/...psaa452b89.jpg

http://i1357.photobucket.com/albums/...ps136a86d4.jpg

Poor pic, but you can see how far it extends under the A pillar.

http://i1357.photobucket.com/albums/...ps8a1fa24b.jpg

http://i1357.photobucket.com/albums/...psdb4aa773.jpg

The holes running for and aft get welded to the rocker. My entire kick panel was toast and this is from a donor.

http://i1357.photobucket.com/albums/...psd25b1676.jpg

http://i1357.photobucket.com/albums/...pse16ff879.jpg

It also welds to the outer cowl along the seam I have roughed in here that's behind the fender.

http://i1357.photobucket.com/albums/...ps9e692500.jpg

This is the sequence of assembly involved under the b pillar. It's rather involved also with many spot welds to drill out and then sneak it out between the pillar and floor pan. I was replacing the entire pan and inner rocker, so I had good access.

http://i1357.photobucket.com/albums/...ps468886bf.jpg

I used my plasma to remove and the body is on a roto. Makes the job easier.

http://i1357.photobucket.com/albums/...pscc3cf67d.jpg

http://i1357.photobucket.com/albums/...ps4c7f9bd4.jpg

http://i1357.photobucket.com/albums/...ps0966b743.jpg

deadbodyman 08-19-2016 07:44 AM

Quote:

Originally Posted by 98camarod (Post 3846330)
I decided to do full quarters on my 69 Chevelle. I used my new HF plasma cutter to cut out my LH quarter today. I got the jamb all removed and part of the trunk. I'm concerned where it is mounted to the rocker. It looks like the awesome repairs before, they brazed the two together. So, I'm assuming that I need to replace the rocker as well to get the correct lineup.

Just looking for some input and any advice.

They are all brazed there from the factory, roof seems too. theres many places where you'll find brazing .The ones that DONT are the ones that have been rebuilt, redone or restored.
Migs didn't show up until the late 70's or so.
Brass is still used today at the factory on some roof seems but its a different type of application.
Keep those rockers as is for now and concentrate on the 1/4 One sure way to tell if a panel has been replaced is if you can see the spot welds where the panel connects to the inner panel, check" all the way around the perimeter" especially the the bottom pinch welds if you can see the spot welds its original.

98camarod 08-19-2016 01:35 PM

Well, now what?

http://i88.photobucket.com/albums/k1...ps9kcudfil.jpg

idrivejunk 08-19-2016 06:15 PM

Err... dammit. Thats not good, man. I know how to fix all of it but am not sure how to begin to advise you. My first reaction is to say:

What might your plans for this car be?

Can you take all the interior behind the front seat out for a good look at everything? We might be looking at the tip of an iceberg... or just a corrosion hotspot so more inspection is needed. Especially behind the "earmuff" sections of the headliner. Flashlight required and pics please.

Heres the :sweat: Q: How do you feel about putting a roof on it? Deal-breaker on the project?

Hate to keep referring you to Camaro pics but these will hopefully clarify the construction of that area for you. You have big hidden rust trouble in the area, and an improper previous repair. How to fix is easy to say. Deciding what to fix how far is the big chance to mess up. Dig deeper, look more. Think. Shop parts. Holler back. We would love to see this fixed nice but the job just grew.

http://i1108.photobucket.com/albums/...ps3txmkkcx.jpg
http://i1108.photobucket.com/albums/...ps3mramw1x.jpg
http://i1108.photobucket.com/albums/...psg9dxyewk.jpg

Too Many Projects 08-19-2016 06:33 PM

OUCH, yeah, the whole inner structure behind the roof skin/quarter appear to be gone from rust. You're most likely looking for donor parts to replace the inner structure....not much available repop for that.

Like idj said, it may be like that all over. Have you removed the rear window trim and inspected the pinchweld area ? I'm thinking there is more structural damage there as well...:( How is the package tray ? It just keeps traveling.


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