roof chop and swap question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

project79 · 07-14-2010, 06:19 PM

Hey guys and gals!! Wow! This a great site, so many resources!

I am restoring a 79 k10 4x4. I have been doing a ground up resto on it for about 2 years. I work on it when I have the time and money. I am in the process of restoring the cab. I started restoring the cab and discovered that at some point a tree limb or something had put a huge dent and crease in the roof barried under 10 pounds of bondo over top of rust. The roof ended up having all kinds of bad issues and is a total loss.

So I decided to chop the top off of my 78 parts truck cab and swap it onto the 79 cab. I measured, measured and measured some more and finally cut the tops off of both of them. I cut them about at the top of the front pillar and 4" below the roof skin seam on the back pillars. The cuts came out ok but they are not exact and there are some gaps that need filler strips welded in and such and some minor tweaking.

The question I have is, does anyone know the inner dimensions of the front windsheild and the back window openings. I had drawn a diagram of all the dimensions but it has come up missing. I want to make sure that I have the correct space and to help square up the roof. Any help would be awesome!!!!!!

-Stew

project79 · 07-15-2010, 10:21 AM

Does anyone have any measurements on these or know where I can get them?

**N2TRUX** · 07-15-2010, 10:29 AM

I don't have any measurements to offer. I am curious if you braced the cab inside before you cut the roof off?

project79 · 07-15-2010, 11:23 AM

yeah, I welded braces in and nothing moved when I cut it off.

Restrorob · 07-15-2010, 06:13 PM

Stew, Welcome aboard !

I've got my 74, It measures 23 1/2" between the lip for the windshield rubber measuring above the steering column and glove box lock.

The rear window between the seal lip at the steering column and glove box areas is 13 5/8"......

project79 · 07-16-2010, 10:30 AM

Thanks So much RestroRob!!! Thats a very big help!!!
-Stew

07-14-2010, 06:19 PM	#1
project79 Registered User Join Date: Jun 2008 Location: Clarington, Ohio Posts: 7	roof chop and swap question Hey guys and gals!! Wow! This a great site, so many resources! I am restoring a 79 k10 4x4. I have been doing a ground up resto on it for about 2 years. I work on it when I have the time and money. I am in the process of restoring the cab. I started restoring the cab and discovered that at some point a tree limb or something had put a huge dent and crease in the roof barried under 10 pounds of bondo over top of rust. The roof ended up having all kinds of bad issues and is a total loss. So I decided to chop the top off of my 78 parts truck cab and swap it onto the 79 cab. I measured, measured and measured some more and finally cut the tops off of both of them. I cut them about at the top of the front pillar and 4" below the roof skin seam on the back pillars. The cuts came out ok but they are not exact and there are some gaps that need filler strips welded in and such and some minor tweaking. The question I have is, does anyone know the inner dimensions of the front windsheild and the back window openings. I had drawn a diagram of all the dimensions but it has come up missing. I want to make sure that I have the correct space and to help square up the roof. Any help would be awesome!!!!!! -Stew

07-15-2010, 10:21 AM	#2
project79 Registered User Join Date: Jun 2008 Location: Clarington, Ohio Posts: 7	Re: roof chop and swap question Does anyone have any measurements on these or know where I can get them?

07-15-2010, 10:29 AM	#3
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,023	Re: roof chop and swap question I don't have any measurements to offer. I am curious if you braced the cab inside before you cut the roof off? __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

07-15-2010, 11:23 AM	#4
project79 Registered User Join Date: Jun 2008 Location: Clarington, Ohio Posts: 7	Re: roof chop and swap question yeah, I welded braces in and nothing moved when I cut it off.

07-15-2010, 06:13 PM	#5
Restrorob The One And Only !!! Join Date: Jan 2007 Location: Hole in the woods Florida Posts: 4,567	Re: roof chop and swap question Stew, Welcome aboard ! I've got my 74, It measures 23 1/2" between the lip for the windshield rubber measuring above the steering column and glove box lock. The rear window between the seal lip at the steering column and glove box areas is 13 5/8"...... __________________ 93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz ! The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. *"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!* Last edited by Restrorob; 07-15-2010 at 06:15 PM.

07-16-2010, 10:30 AM	#6
project79 Registered User Join Date: Jun 2008 Location: Clarington, Ohio Posts: 7	Re: roof chop and swap question Thanks So much RestroRob!!! Thats a very big help!!! -Stew Last edited by project79; 07-16-2010 at 10:31 AM.



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