Ok to weld quarters with car on dollies?
#1164884
01/25/12 11:38 PM
01/25/12 11:38 PM
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Joined: Feb 2003
Posts: 1,523
Oakley CA
69charger440_6pa
OP
pro stock
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OP
pro stock
Joined: Feb 2003
Posts: 1,523
Oakley CA
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I'm getting ready to weld the rear end of my 69 charger together (quarters, Dutchman, deck lid, tail panel ect...) and was wondering how the car should be loaded when doing this. Currently the car is a bare shell with body dollies bolted to it (us car tool style) Can I fit and weld everything with the car like this or should I bolt up the leaf springs and rear end and let the car sit on its own weight?  Thanks!
Last edited by 69charger440_6pa; 01/25/12 11:51 PM.
1969 Charger R/T under construction
2014 Ram 3500 Cummins
2006 Corvette Z06
2015 Corvette Z06
2014 BMW M5
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Re: Ok to weld quarters with car on dollies?
[Re: 69charger440_6pa]
#1164885
01/26/12 12:03 AM
01/26/12 12:03 AM
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Joined: Jan 2010
Posts: 1,992
midwest
68427vette
top fuel
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top fuel
Joined: Jan 2010
Posts: 1,992
midwest
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the high end shop i sand blast for, always puts the cars back as a roller,, so the car can relax,,, with doors on,, 
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Re: Ok to weld quarters with car on dollies?
[Re: 1970440six]
#1164887
01/28/12 10:40 AM
01/28/12 10:40 AM
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Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
70Cuda383
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Too Many Posts
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Marysville, O-H-I-O
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only thing I could think of, is that the leaf springs spread the load/weight of the car out over 2 points, and adds load to the rear frame rails, vs having it all loaded on one point with the rear frame rails/trunk floor, etc. unloaded and just hanging free.
When I did mine, it had rear suspension installed and car sitting on it's own weight (jack stands under rear end) I had to push in a little on the tail panel because I had to replace the trunk opening gutter rail at the same time, when I cut it out, the tail panel "sprung" outward, even though the replacement piece was a perfect match from AMD
**Photobucket sucks**
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Re: Ok to weld quarters with car on dollies?
[Re: 70Cuda383]
#1164888
01/28/12 11:18 AM
01/28/12 11:18 AM
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Joined: Jun 2005
Posts: 25
ALABAMA
4406PAKCUDA
member
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member
Joined: Jun 2005
Posts: 25
ALABAMA
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Quote:
only thing I could think of, is that the leaf springs spread the load/weight of the car out over 2 points, and adds load to the rear frame rails, vs having it all loaded on one point with the rear frame rails/trunk floor, etc. unloaded and just hanging free.
When I did mine, it had rear suspension installed and car sitting on it's own weight (jack stands under rear end) I had to push in a little on the tail panel because I had to replace the trunk opening gutter rail at the same time, when I cut it out, the tail panel "sprung" outward, even though the replacement piece was a perfect match from AMD
I recently put two qtrs on an Ebody and after putting the rear end under the car the rear rails moved almost 3/4, I know because I took very careful measurements. The closer the car is to being "loaded" the better. I think you will find the panels will require less tweaking. (they will always require some tweaking)
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Re: Ok to weld quarters with car on dollies?
[Re: 4406PAKCUDA]
#1164889
01/28/12 11:36 AM
01/28/12 11:36 AM
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Joined: Jun 2003
Posts: 21,427
It's a dry heat
gtx6970
Too Many Posts
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Too Many Posts
Joined: Jun 2003
Posts: 21,427
It's a dry heat
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Quote:
Quote:
only thing I could think of, is that the leaf springs spread the load/weight of the car out over 2 points, and adds load to the rear frame rails, vs having it all loaded on one point with the rear frame rails/trunk floor, etc. unloaded and just hanging free.
When I did mine, it had rear suspension installed and car sitting on it's own weight (jack stands under rear end) I had to push in a little on the tail panel because I had to replace the trunk opening gutter rail at the same time, when I cut it out, the tail panel "sprung" outward, even though the replacement piece was a perfect match from AMD
I recently put two qtrs on an Ebody and after putting the rear end under the car the rear rails moved almost 3/4, I know because I took very careful measurements. The closer the car is to being "loaded" the better. I think you will find the panels will require less tweaking. (they will always require some tweaking)
Agreed,
I will be installing both quarters and trunk pan to a 68 Charger in the coming months. And my plan is to leave the rear susp installed .
Plan is to have the doors forward on and aligned before removing any of the rear metal . That way I have a good foundation to re-align the rear metal
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Re: Ok to weld quarters with car on dollies?
[Re: Rhinodart]
#1164895
01/28/12 08:10 PM
01/28/12 08:10 PM
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Joined: Jun 2003
Posts: 21,427
It's a dry heat
gtx6970
Too Many Posts
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Too Many Posts
Joined: Jun 2003
Posts: 21,427
It's a dry heat
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Quote:
Quote:
ho did the factory jig the body to be welded like to see some pics thanks
That is what I was thinking, the body did not have the suspension on it when built at the factory! 
I remember seeing an old factory pic ( I didn't save it) that showed they were on jigs
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Re: Ok to weld quarters with car on dollies?
[Re: 69charger440_6pa]
#1164898
01/29/12 11:52 AM
01/29/12 11:52 AM
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Joined: May 2004
Posts: 1,377
Back In Iowa
belv2vert66
pro stock
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pro stock
Joined: May 2004
Posts: 1,377
Back In Iowa
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Quote:
Quote:
Quote:
I recently put two qtrs on an Ebody and after putting the rear end under the car the rear rails moved almost 3/4, I know because I took very careful measurements. The closer the car is to being "loaded" the better. I think you will find the panels will require less tweaking. (they will always require some tweaking)
The rails moved 3/4" in which direction?
Up once you put the car on the suspension
Not surprising if the quarters were cut off. I'm no expert but IMHO everything should be supported in relationship to the quarters. Frame rails, trunk weatherstrip rails if not removed and tail panel. I also replaced my rear rails before doing the quarter work. When I was all done my AMD quarter fit just about perfectly.
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Re: Ok to weld quarters with car on dollies?
[Re: Mopargnome]
#1164900
01/29/12 02:30 PM
01/29/12 02:30 PM
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Joined: May 2004
Posts: 1,377
Back In Iowa
belv2vert66
pro stock
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pro stock
Joined: May 2004
Posts: 1,377
Back In Iowa
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Quote:
I did alot of panel replacement on an ot 67 Chevelle and before anything was cut out, I cut up 40 feet worth of square tubing to brace the car.
Here is a pic of mine as I was beginning to brace. It kind of shows how I kept the tail panel and trunk rails in place. The post beside the car are lagged to the concrete. The pic isn't good but I also made jack stands that were threaded so I could level the frame rails before I started cutting. This was all done in my little shop in Iowa. I ended up having to move mid project so it went to a body shop for final welding and body work. It ended up on a rotisserie for blasting and paint.
started bracing:
rear rails out:
used rails prepping to go back in:
finished by board member Copchasers shop:
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