body repair info - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lodime97 · 12-23-2016, 09:44 PM

I'm looking to make 1 cab out of 2 and was curious if I may be biting off more than I can chew. I'm looking to drill out welds and use pieces of one to repair the other and was wondering if there is some sort of guide in existence that could tell me where spot welds are generally located.
Mainly trying to remove the inner roof skins and transplant with as little cutting as possible. I'm sure ill have to remove the outer skin to get to the welds for the inner but not sure where to start.

**70cst** · 12-23-2016, 09:50 PM

Greetings lodime97 ...

to the forums and

from Ohio.

I'm going to move you over to Paint and Bodywork and you will likely get help over there.

MARTINSR · 12-23-2016, 10:17 PM

You can drill out the welds like this.

Here is a "Basics of Basics" on the subject.

http://www.hotrodders.com/forum/basi...ls-222549.html

Brian

franken · 12-23-2016, 11:04 PM

Back in the day it was a manual process so spot welds are where they put them along a line. The spot is usually a bit lower so a bit of gentle grinding or looking at a panel reveals where to drill.
You can spend money on good spot weld drills, but I'd start w/ the cheap HF/NT ones.
They did a lot of spots so understand its a pain...
Stuff rusted back then so one part probably has the same problems as another. Common rust areas have aftermarket parts. Typical are cab corners and rockers. To me a roof is a bit scary, but I'd search for what's out there.

dwcsr · 12-24-2016, 03:02 PM

Quote:

Originally Posted by lodime97

I'm looking to make 1 cab out of 2 and was curious if I may be biting off more than I can chew. I'm looking to drill out welds and use pieces of one to repair the other and was wondering if there is some sort of guide in existence that could tell me where spot welds are generally located.
Mainly trying to remove the inner roof skins and transplant with as little cutting as possible. I'm sure ill have to remove the outer skin to get to the welds for the inner but not sure where to start.

The assembly manual will give general location of spot welds

MARTINSR · 12-24-2016, 03:35 PM

Do you have a link to that, I think we would have to laugh at it being the welds were done by humans and SUPER random at best!

Today, that's a whole different story, working on late models the welds are exactly where the manufacturers guidelines say they are!

But back then, holy crap, to have three within three inches and then a gap of 5 inches without one and the rest of the panel have them 2-3 inches apart is common.

Brian

lodime97 · 12-25-2016, 04:00 PM

thanks for the responses yall
ive done body repair before so I'm familiar with the steps its just that looking at the parts cab ive got I dunno where to start to drill out the welds on the roof.
looking at the seams I cant figure out where they are. I thought they may be behind the raingutter. is this correct?
that is more what I was wanting to know.

12-23-2016, 09:44 PM	#1
lodime97 Registered User Join Date: Feb 2015 Location: wilmington, oh Posts: 3	body repair info I'm looking to make 1 cab out of 2 and was curious if I may be biting off more than I can chew. I'm looking to drill out welds and use pieces of one to repair the other and was wondering if there is some sort of guide in existence that could tell me where spot welds are generally located. Mainly trying to remove the inner roof skins and transplant with as little cutting as possible. I'm sure ill have to remove the outer skin to get to the welds for the inner but not sure where to start.

12-23-2016, 09:50 PM	#2
70cst Senior Member Join Date: Feb 2001 Location: New Madison, Ohio Posts: 21,339	Re: body repair info Greetings lodime97 ... to the forums and from Ohio. I'm going to move you over to Paint and Bodywork and you will likely get help over there. __________________ A husband can be right...or...A husband can be happy. 67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk. 1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder!

12-23-2016, 10:17 PM	#3
MARTINSR Registered User Join Date: Dec 2000 Location: Boise, Idaho Posts: 6,001	Re: body repair info You can drill out the welds like this. Here is a "Basics of Basics" on the subject. http://www.hotrodders.com/forum/basi...ls-222549.html Brian __________________ 1948 Chevy pickup Chopped, Sectioned, 1953 Corvette 235 powered. Once was even 401 Buick mid engined with the carburetor right between the seats! Bought with paper route money in 1973 when I was 15. "Fan of most anything that moves human beings"

12-23-2016, 11:04 PM	#4
franken Registered User Join Date: Jun 2013 Location: Somewhere Posts: 3,052	Re: body repair info Back in the day it was a manual process so spot welds are where they put them along a line. The spot is usually a bit lower so a bit of gentle grinding or looking at a panel reveals where to drill. You can spend money on good spot weld drills, but I'd start w/ the cheap HF/NT ones. They did a lot of spots so understand its a pain... Stuff rusted back then so one part probably has the same problems as another. Common rust areas have aftermarket parts. Typical are cab corners and rockers. To me a roof is a bit scary, but I'd search for what's out there.

12-24-2016, 03:35 PM	#6
MARTINSR Registered User Join Date: Dec 2000 Location: Boise, Idaho Posts: 6,001	Re: body repair info Do you have a link to that, I think we would have to laugh at it being the welds were done by humans and SUPER random at best! Today, that's a whole different story, working on late models the welds are exactly where the manufacturers guidelines say they are! But back then, holy crap, to have three within three inches and then a gap of 5 inches without one and the rest of the panel have them 2-3 inches apart is common. Brian __________________ 1948 Chevy pickup Chopped, Sectioned, 1953 Corvette 235 powered. Once was even 401 Buick mid engined with the carburetor right between the seats! Bought with paper route money in 1973 when I was 15. "Fan of most anything that moves human beings"

12-25-2016, 04:00 PM	#7
lodime97 Registered User Join Date: Feb 2015 Location: wilmington, oh Posts: 3	Re: body repair info thanks for the responses yall ive done body repair before so I'm familiar with the steps its just that looking at the parts cab ive got I dunno where to start to drill out the welds on the roof. looking at the seams I cant figure out where they are. I thought they may be behind the raingutter. is this correct? that is more what I was wanting to know.



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