GMC not chevrolet - The 1947 - Present Chevrolet & GMC Truck Message Board Network

yoshi · 11-22-2014, 05:17 PM

I've just found my chassis plate amongst some spare parts. It says General motors truck manufactured by General Motors corporation Pontiac Michigan USA. Can any info be gained from the serial number?

Highsider · 11-22-2014, 09:50 PM

yoshi, you are full of surprises!

There surely can't be that much difference, right?

**mr48chev** · 11-22-2014, 10:16 PM

Does the plate look like this one that I borrowed from the Classic Parts website?

Or this one that I also borrowed from that website?

yoshi · 11-23-2014, 01:53 AM

The top plate

**mr48chev** · 11-23-2014, 03:01 AM

That would mean that at least the plate came off a GMC

Does the front cross member on the frame look like this one

That is a GMC frame .

The front cross member on this truck (in front of the Jag suspension cross member) is Chevrolet.

69l46vert · 11-23-2014, 08:50 AM

I'm slowly finding out that there are many differences besides the frame. Rad. support, front fenders and hood are specific to GMC and don't interchange with Chevrolet. I'm sure there are more that I don't know about yet. Rick

Highsider · 11-23-2014, 10:18 AM

Quote:

Originally Posted by 69l46vert

I'm slowly finding out that there are many differences besides the frame. Rad. support, front fenders and hood are specific to GMC and don't interchange with Chevrolet. I'm sure there are more that I don't know about yet. Rick

Me too!
I have only been around Chevys.

yoshi · 11-24-2014, 05:59 PM

Found this old picture of the chassis, not sure if it helps

**mr48chev** · 11-24-2014, 06:30 PM

Most of the Chevy vs GMC nose issues can be circumnavigated with a bit of thinking.

The main issue is the front cossmember under the radiator support and the radiator support. That and the tops of the radiator supports are totally different but I think a guy could swap pieces around if he had both core supports handy to make it work which ever way he wanted to. Chevy nose on GMC frame or GMC nose on Chevy frame.

47/53 the fenders are the same except that the GMC fenders have the round park light under the headlight.

54 Chevy fenders have the round cut out for the grill rather than the square cut out. This is a 54 Chevy Fender.

This is a 54 GMC fender

Yoshi, do you have photos of the sheet metal for the nose? The hood, fenders, grill and hood support ? With photos of those we can figure out what it is supposed to be and go from there.

I don't remember off hand about how you came into possession of the truck as to who sold it to you or where it went to where you are from. No do I remember how complete or not complete it was when you bought it.

Before it gets more confusing lets see what you have to work with before we go on.

yoshi · 11-24-2014, 06:53 PM

This is how I got it, wings have been painted, no grill.

yoshi · 11-24-2014, 07:46 PM

Pretty sure they are Chevy fenders but that don't mean they were ordered correctly!

yoshi · 11-25-2014, 01:04 PM

Looking at all the evidence the only part that is GMC is the chassis plate

69l46vert · 11-25-2014, 06:30 PM

Someone more knowledgeable than me will hopefully correct me if Im wrong but I'm not sure that Chevy fenders will work with a gmc hood. Rick

11-22-2014, 05:17 PM	#1
yoshi Registered User Join Date: Oct 2014 Location: uk Posts: 621	GMC not chevrolet I've just found my chassis plate amongst some spare parts. It says General motors truck manufactured by General Motors corporation Pontiac Michigan USA. Can any info be gained from the serial number? __________________ yoshi's 49 project

11-22-2014, 09:50 PM	#2
Highsider Registered User Join Date: Jun 2012 Location: Southern Iowa Posts: 944	Re: GMC not chevrolet yoshi, you are full of surprises! There surely can't be that much difference, right? __________________ Jimi J from I-Oh-Way '57 Panel 3105 Met this deer... Roof Swap on my Panel Jim's Bread Truck

11-22-2014, 10:16 PM	#3
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,711	Re: GMC not chevrolet Does the plate look like this one that I borrowed from the Classic Parts website? Or this one that I also borrowed from that website? __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

11-23-2014, 01:53 AM	#4
yoshi Registered User Join Date: Oct 2014 Location: uk Posts: 621	Re: GMC not chevrolet The top plate __________________ yoshi's 49 project

11-23-2014, 03:01 AM	#5
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,711	Re: GMC not chevrolet That would mean that at least the plate came off a GMC Does the front cross member on the frame look like this one That is a GMC frame . The front cross member on this truck (in front of the Jag suspension cross member) is Chevrolet. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

11-23-2014, 08:50 AM	#6
69l46vert Registered User Join Date: May 2007 Location: Buxton Maine Posts: 137	Re: GMC not chevrolet I'm slowly finding out that there are many differences besides the frame. Rad. support, front fenders and hood are specific to GMC and don't interchange with Chevrolet. I'm sure there are more that I don't know about yet. Rick

11-24-2014, 05:59 PM	#8
yoshi Registered User Join Date: Oct 2014 Location: uk Posts: 621	Re: GMC not chevrolet Found this old picture of the chassis, not sure if it helps Attached Images __________________ yoshi's 49 project

11-24-2014, 06:30 PM	#9
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,711	Re: GMC not chevrolet Most of the Chevy vs GMC nose issues can be circumnavigated with a bit of thinking. The main issue is the front cossmember under the radiator support and the radiator support. That and the tops of the radiator supports are totally different but I think a guy could swap pieces around if he had both core supports handy to make it work which ever way he wanted to. Chevy nose on GMC frame or GMC nose on Chevy frame. 47/53 the fenders are the same except that the GMC fenders have the round park light under the headlight. 54 Chevy fenders have the round cut out for the grill rather than the square cut out. This is a 54 Chevy Fender. This is a 54 GMC fender Yoshi, do you have photos of the sheet metal for the nose? The hood, fenders, grill and hood support ? With photos of those we can figure out what it is supposed to be and go from there. I don't remember off hand about how you came into possession of the truck as to who sold it to you or where it went to where you are from. No do I remember how complete or not complete it was when you bought it. Before it gets more confusing lets see what you have to work with before we go on. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

11-24-2014, 06:53 PM	#10
yoshi Registered User Join Date: Oct 2014 Location: uk Posts: 621	Re: GMC not chevrolet This is how I got it, wings have been painted, no grill. Attached Images __________________ yoshi's 49 project

11-24-2014, 07:46 PM	#11
yoshi Registered User Join Date: Oct 2014 Location: uk Posts: 621	Re: GMC not chevrolet Pretty sure they are Chevy fenders but that don't mean they were ordered correctly! __________________ yoshi's 49 project

11-25-2014, 01:04 PM	#12
yoshi Registered User Join Date: Oct 2014 Location: uk Posts: 621	Re: GMC not chevrolet Looking at all the evidence the only part that is GMC is the chassis plate __________________ yoshi's 49 project

11-25-2014, 06:30 PM	#13
69l46vert Registered User Join Date: May 2007 Location: Buxton Maine Posts: 137	Re: GMC not chevrolet Someone more knowledgeable than me will hopefully correct me if Im wrong but I'm not sure that Chevy fenders will work with a gmc hood. Rick



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