Chevrolet, GMC differences - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**davischevy** · 06-14-2020, 09:59 PM

I'm sure to you guys this will be an elementary question, but I know absolutely nothing about the 60-66 trucks. I'm sure the answer is different from year to year on some items.

Chevrolet to GMC
Are the instrument clusters different?
Is the rear suspension different. (I think I know the answer to this one, but I will digress to the experts.).
Is the glovebox different? Does AC change the GB configuration?

TIA

LostMy65 · 06-14-2020, 10:56 PM

Welcome to the 60-66 neighborhood.
I found this thread by searching titles:https://67-72chevytrucks.com/vboard/...ht=differences

**cwcarpenter98** · 06-14-2020, 11:38 PM

Clusters are different
Chevy usually got coils in the rear, GMCs usually got leafs. Each truck could be optioned with either rear setup
I think the glove boxes are different, but I haven't put my hands on the GMC ones, so I'm not certain. Not sure about the A/C either

**davischevy** · 06-14-2020, 11:58 PM

Thanks guys. It looks like I might not be the first to delve into this area of unknowns.

**PGSigns** · 06-15-2020, 10:05 AM

The entire dash is different. Clusters are not shaped the same, radio and ash tray area different and the glove box door is flat on the GMC. I have both dash's here and can try and get some pics. Hood is not the same. I have a GMC hood to put on my 65 to change up the front. GMC's seem to be mostly leaf spring with a Dana 44.
Jimmy

**davischevy** · 06-15-2020, 11:14 AM

Quote:

Originally Posted by PGSigns

The entire dash is different. Clusters are not shaped the same, radio and ash tray area different and the glove box door is flat on the GMC. I have both dash's here and can try and get some pics. Hood is not the same. I have a GMC hood to put on my 65 to change up the front. GMC's seem to be mostly leaf spring with a Dana 44.
Jimmy

Thanks, don't go to any trouble, I was asking out of curiosity more than anything. I just didn't realize the dashes were different.

Were the rear suspensions coil with leafs optional like the next generation on both GMC and Chevrolet?

Robert Haas · 06-15-2020, 12:53 PM

Up till 67 I have heard many times that the GMC could be ordered with coils on the back, I have never seen one. The half dozen that I have been told that they came that way after seeing them was in fact actually a Chevrolet wearing a GMC cab. (non matching numbers that I confirmed were actually not GMC)

GMC and Chevrolets never shared an assembly line until 67

cgrocen · 06-15-2020, 11:40 PM

Robert Haas, 1960-1966 GMC trucks in Canada are known to have coil spring rear suspension. Also, because both GMC and Chevrolet trucks were made in Oshawa, Ontario, I have reason to believe they were made on the same assembly line.

LostMy65 · 06-16-2020, 12:15 AM

I have a short bed GMC X-Frame. It has coils.
One thing that most don't mention is the gmc's from at least 60-66 did not have the VIN on the frame. Chevy did, but not GMC.

**davischevy** · 06-16-2020, 12:03 PM

Interesting stuff here.

**davischevy** · 06-16-2020, 12:04 PM

Did the 60-66 trucks have a SPID or build sheet?

**cwcarpenter98** · 06-16-2020, 12:21 PM

From the limited knowledge I have on build sheets and SPIDs, some of the 66 trucks got SPIDs. I'm not really sure on the build sheets though. Unfortunately, my seat was recovered, so if there was one, it got tossed long ago

**PGSigns** · 06-16-2020, 07:24 PM

I have seen one SPID on a 66. I have found the remnants of the build sheets in a few seat backs over the years.
Jimmy

raylube · 06-17-2020, 01:23 AM

Dont forget the big block v6

**davischevy** · 06-17-2020, 10:58 AM

Quote:

Originally Posted by raylube

Dont forget the big block v6

That is one thing I did know. My dad had a friend that bought a couple of those new. I was just a little kid, but there was no mistaking that sound. The guy bought them because of the lugging power. He actually abused them, chug, chug, chuging them around.

06-14-2020, 09:59 PM	#1
davischevy Senior Member Join Date: Sep 2008 Location: Harrison, Arkansas Posts: 9,860	Chevrolet, GMC differences I'm sure to you guys this will be an elementary question, but I know absolutely nothing about the 60-66 trucks. I'm sure the answer is different from year to year on some items. Chevrolet to GMC Are the instrument clusters different? Is the rear suspension different. (I think I know the answer to this one, but I will digress to the experts.). Is the glovebox different? Does AC change the GB configuration? TIA __________________ other Larry Build thread, Arkansas K10 https://67-72chevytrucks.com/vboard/...=755797&page=5 The ability to speak several languages is an asset, but the ability to keep your mouth shut in any language is priceless.

06-14-2020, 10:56 PM	#2
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,530	Re: Chevrolet, GMC differences Welcome to the 60-66 neighborhood. I found this thread by searching titles:https://67-72chevytrucks.com/vboard/...ht=differences __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

06-14-2020, 11:38 PM	#3
cwcarpenter98 Senior Member Join Date: Jan 2018 Location: Hickory Flat, GA Posts: 4,488	Re: Chevrolet, GMC differences Clusters are different Chevy usually got coils in the rear, GMCs usually got leafs. Each truck could be optioned with either rear setup I think the glove boxes are different, but I haven't put my hands on the GMC ones, so I'm not certain. Not sure about the A/C either __________________ Christian Carpenter 1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive Overdrive wiring here 1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson

06-14-2020, 11:58 PM	#4
davischevy Senior Member Join Date: Sep 2008 Location: Harrison, Arkansas Posts: 9,860	Re: Chevrolet, GMC differences Thanks guys. It looks like I might not be the first to delve into this area of unknowns. __________________ other Larry Build thread, Arkansas K10 https://67-72chevytrucks.com/vboard/...=755797&page=5 The ability to speak several languages is an asset, but the ability to keep your mouth shut in any language is priceless.

06-15-2020, 10:05 AM	#5
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: Chevrolet, GMC differences The entire dash is different. Clusters are not shaped the same, radio and ash tray area different and the glove box door is flat on the GMC. I have both dash's here and can try and get some pics. Hood is not the same. I have a GMC hood to put on my 65 to change up the front. GMC's seem to be mostly leaf spring with a Dana 44. Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

06-15-2020, 12:53 PM	#7
Robert Haas Registered User Join Date: Mar 2014 Location: Salinas Ca. Posts: 625	Re: Chevrolet, GMC differences Up till 67 I have heard many times that the GMC could be ordered with coils on the back, I have never seen one. The half dozen that I have been told that they came that way after seeing them was in fact actually a Chevrolet wearing a GMC cab. (non matching numbers that I confirmed were actually not GMC) GMC and Chevrolets never shared an assembly line until 67 __________________ Our 1965 GMC big block pro mod build http://67-72chevytrucks.com/vboard/s...d.php?t=746098

06-15-2020, 11:40 PM	#8
cgrocen Registered User Join Date: Apr 2017 Location: Esterhazy, SK Posts: 82	Re: Chevrolet, GMC differences Robert Haas, 1960-1966 GMC trucks in Canada are known to have coil spring rear suspension. Also, because both GMC and Chevrolet trucks were made in Oshawa, Ontario, I have reason to believe they were made on the same assembly line. Last edited by cgrocen; 06-15-2020 at 11:45 PM.

06-16-2020, 12:15 AM	#9
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,530	Re: Chevrolet, GMC differences I have a short bed GMC X-Frame. It has coils. One thing that most don't mention is the gmc's from at least 60-66 did not have the VIN on the frame. Chevy did, but not GMC. __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

06-16-2020, 12:03 PM	#10
davischevy Senior Member Join Date: Sep 2008 Location: Harrison, Arkansas Posts: 9,860	Re: Chevrolet, GMC differences Interesting stuff here. __________________ other Larry Build thread, Arkansas K10 https://67-72chevytrucks.com/vboard/...=755797&page=5 The ability to speak several languages is an asset, but the ability to keep your mouth shut in any language is priceless.

06-16-2020, 12:04 PM	#11
davischevy Senior Member Join Date: Sep 2008 Location: Harrison, Arkansas Posts: 9,860	Re: Chevrolet, GMC differences Did the 60-66 trucks have a SPID or build sheet? __________________ other Larry Build thread, Arkansas K10 https://67-72chevytrucks.com/vboard/...=755797&page=5 The ability to speak several languages is an asset, but the ability to keep your mouth shut in any language is priceless.

06-16-2020, 12:21 PM	#12
cwcarpenter98 Senior Member Join Date: Jan 2018 Location: Hickory Flat, GA Posts: 4,488	Re: Chevrolet, GMC differences From the limited knowledge I have on build sheets and SPIDs, some of the 66 trucks got SPIDs. I'm not really sure on the build sheets though. Unfortunately, my seat was recovered, so if there was one, it got tossed long ago __________________ Christian Carpenter 1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive Overdrive wiring here 1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson

06-16-2020, 07:24 PM	#13
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: Chevrolet, GMC differences I have seen one SPID on a 66. I have found the remnants of the build sheets in a few seat backs over the years. Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

06-17-2020, 01:23 AM	#14
raylube Registered User Join Date: Jan 2012 Location: Preston Idaho Posts: 279	Re: Chevrolet, GMC differences Dont forget the big block v6 Attached Images



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