40-60 Series Cabs vs. 10-30 series... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bagged91 · 06-22-2005, 02:33 PM

I know that there are differences in the floor pans by the kickpanels and also the bottoms of the doors but is there any difference between the two from the middle of the rocker and floorpan, up the back of the cab across the roof and down to the top of the dash?

Thanks...
Joe

**special-K** · 06-22-2005, 08:14 PM

I am almost certain the answer to that question is,"nope".It`s my understanding the only differences are what you mentioned.

Robert1970C20rstbukt · 06-22-2005, 08:48 PM

The cabs are the same, except for the doors, and I think the firewall is different. I think the cab mounting positions are different too.

Longhorn Man · 06-22-2005, 09:42 PM

rear window, flor boards, rockers, lack of fender attachment points...

bagged91 · 06-23-2005, 01:43 PM

The rear window, is that stamped into the cab as a big back window but is running a glass the size of a 67 small window? Would I be able to cut it out to the correct size? The reason I am asking is I am looking for a cheap, solid cab for a project I am planning but I don't need the firewall, front of the floor or windshield posts. There are a few really solid C50's & 60's laying around here but the pickup trucks are mostly all in poor condition.

70GMC_BOB · 06-23-2005, 02:56 PM

Anyone Got A Pic Of A C40-60. I Have Never Seen One

bagged91 · 06-23-2005, 03:31 PM

Here's some...

The pumper is a 72', the box truck is a 72' the wrecker is a 68', not sure on the last firetruck but I believe it is a 67' as there are no sidemarkers...

**hevy_chevy67** · 06-23-2005, 04:01 PM

Here is my dads 67 C40.

Robert1970C20rstbukt · 06-23-2005, 06:32 PM

The big trucks are awesome, especially the ones with 2 speed rear ends. Here's a couple I have on my computer:

Werewolf · 06-23-2005, 07:29 PM

Back when I was 16, trying to rebuild my first '68 Chev, a guy I know at a local junkyard had a '72 C-20 4x4. He couldn't find a decent cab for it, so he ended up using a C-60 (or maybe GMC) cab off of a dumper that somebody gave to the yard. I don't know what all the differences were, but it worked. Or, at least, he made it work. It looked fine on the truck, save for the small rear window, which to me looked a little out of place with the '72 front clip.

Hope that helps on some level.

70GMC_BOB · 06-24-2005, 12:05 PM

so what engine size/tranny did they use in these? also what was the gas mileage? just cerious because I have no clue.

Werewolf · 06-24-2005, 03:05 PM

A lotta the GMC's used V6's. Yes. V6's. BIG V6's. Like well into the 400 ci range. When I go back home this August I may have to steal an old book from my dad with information on these old engines. GMC had a thing for the V6 for some reason. The biggest they built was a V-12, which was two of those 6 cylinders stuck back to back. It's max RPM was like 3200. 8) Gas mileage on that was probably 2 gallons per mile.

Oooh! Webpage! Check these stats out!

http://www.6066gmcguy.org/EngineData.htm

478 CI V6. 637 V8. 702 V12. I've seen a couple of these. Unfortunately, they won't fit in the smaller trucks.

**hevy_chevy67** · 06-24-2005, 04:19 PM

The white C40 I posted above has a 283 V8 in it. Same size of motor I'm putting in my 67 C10.

**special-K** · 06-24-2005, 09:31 PM

Tall Deck 427,the ones with the chrome vents in fenders.And,down to I-6s,292 I believe.

bagged91 · 06-24-2005, 10:53 PM

Yep, Tall Deck 366 & 427's. I haven't personally seen any small blocks but they also had the V & I 6's and also a diesel(only saw one).

rwgregory · 06-25-2005, 03:20 AM

Back in the late '70's I helped a neighbor who owned a concrete company light a fire
in his '67 C-50 dump truck. Stock it had a 283,(with a governor no less), and didn't
have the power to get out of it's own way. Picked up a 427 from a wrecked Corvette
complete with an aluminum hi-rise and worked-on open chamber heads and bolted it
right up to the stock 4-spd. and 16" clutch! Amazingly a set of Hooker fender-well
headers fit like they were made for it and thus my neighbor had one of the baddest
dump trucks to ever haul a load of gravel. Neat thing is, after removing the grill, grill-
support and radiator, the engine was right there making it one of the easiest motor-
swaps I have ever done,(didn't even have to remove the hood).
rwgregory

**special-K** · 06-25-2005, 06:37 AM

That`ll kill a car motor quick.

06-22-2005, 02:33 PM	#1
bagged91 Out draggin' Join Date: Jan 2004 Location: Pitman,NJ Posts: 1,574	40-60 Series Cabs vs. 10-30 series... I know that there are differences in the floor pans by the kickpanels and also the bottoms of the doors but is there any difference between the two from the middle of the rocker and floorpan, up the back of the cab across the roof and down to the top of the dash? Thanks... Joe __________________ 91 GMC Xcab LB-Bags/bd/caddy clip SOLD 72 C10 Cheyenne Super LWB SOLD 92 GMC K1500 Burb 72 C10 Burb (ex. Cheesewagon)SOLD 72 C20 Burb parts truck 71 C10 Burb "project"

06-22-2005, 08:14 PM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	I am almost certain the answer to that question is,"nope".It`s my understanding the only differences are what you mentioned. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

06-22-2005, 08:48 PM	#3
Robert1970C20rstbukt Registered User Join Date: Jun 2004 Location: Beeville, Texas Posts: 1,943	The cabs are the same, except for the doors, and I think the firewall is different. I think the cab mounting positions are different too. __________________ RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck

06-23-2005, 01:43 PM	#5
bagged91 Out draggin' Join Date: Jan 2004 Location: Pitman,NJ Posts: 1,574	The rear window, is that stamped into the cab as a big back window but is running a glass the size of a 67 small window? Would I be able to cut it out to the correct size? The reason I am asking is I am looking for a cheap, solid cab for a project I am planning but I don't need the firewall, front of the floor or windshield posts. There are a few really solid C50's & 60's laying around here but the pickup trucks are mostly all in poor condition. __________________ 91 GMC Xcab LB-Bags/bd/caddy clip SOLD 72 C10 Cheyenne Super LWB SOLD 92 GMC K1500 Burb 72 C10 Burb (ex. Cheesewagon)SOLD 72 C20 Burb parts truck 71 C10 Burb "project"

06-23-2005, 02:56 PM	#6
70GMC_BOB Registered User Join Date: Jul 2001 Location: Lynnwood, washington Posts: 121	Anyone Got A Pic Of A C40-60. I Have Never Seen One __________________ 1972 chev c20 2wd lwb 350v8/th350. (dad's)1970 gmc longstep (9ft commercial bed), 1 ton, 2wd, 350/th400.

06-22-2005, 09:42 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	rear window, flor boards, rockers, lack of fender attachment points...

06-23-2005, 03:31 PM	#7
bagged91 Out draggin' Join Date: Jan 2004 Location: Pitman,NJ Posts: 1,574	pics... Here's some... The pumper is a 72', the box truck is a 72' the wrecker is a 68', not sure on the last firetruck but I believe it is a 67' as there are no sidemarkers... Attached Images __________________ 91 GMC Xcab LB-Bags/bd/caddy clip SOLD 72 C10 Cheyenne Super LWB SOLD 92 GMC K1500 Burb 72 C10 Burb (ex. Cheesewagon)SOLD 72 C20 Burb parts truck 71 C10 Burb "project" Last edited by bagged91; 06-23-2005 at 03:33 PM.

06-23-2005, 04:01 PM	#8
hevy_chevy67 Registered User Join Date: May 2005 Location: Blackfalds, Alberta Posts: 593	Here is my dads 67 C40. Attached Images __________________ 1971 Chevrolet K10 - SWB, 5.3LS, 4L60e 1970 Chevrolet K5 Blazer - Project 1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4 1969 GMC Suburban - 5.3 LS, 4L60e

06-23-2005, 06:32 PM	#9
Robert1970C20rstbukt Registered User Join Date: Jun 2004 Location: Beeville, Texas Posts: 1,943	The big trucks are awesome, especially the ones with 2 speed rear ends. Here's a couple I have on my computer: Attached Images __________________ RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck

06-23-2005, 07:29 PM	#10
Werewolf Woof? Join Date: Jun 2005 Location: Raleigh, NC Posts: 276	Back when I was 16, trying to rebuild my first '68 Chev, a guy I know at a local junkyard had a '72 C-20 4x4. He couldn't find a decent cab for it, so he ended up using a C-60 (or maybe GMC) cab off of a dumper that somebody gave to the yard. I don't know what all the differences were, but it worked. Or, at least, he made it work. It looked fine on the truck, save for the small rear window, which to me looked a little out of place with the '72 front clip. Hope that helps on some level.

06-24-2005, 12:05 PM	#11
70GMC_BOB Registered User Join Date: Jul 2001 Location: Lynnwood, washington Posts: 121	so what engine size/tranny did they use in these? also what was the gas mileage? just cerious because I have no clue. __________________ 1972 chev c20 2wd lwb 350v8/th350. (dad's)1970 gmc longstep (9ft commercial bed), 1 ton, 2wd, 350/th400.

06-24-2005, 03:05 PM	#12
Werewolf Woof? Join Date: Jun 2005 Location: Raleigh, NC Posts: 276	A lotta the GMC's used V6's. Yes. V6's. BIG V6's. Like well into the 400 ci range. When I go back home this August I may have to steal an old book from my dad with information on these old engines. GMC had a thing for the V6 for some reason. The biggest they built was a V-12, which was two of those 6 cylinders stuck back to back. It's max RPM was like 3200. 8) Gas mileage on that was probably 2 gallons per mile. Oooh! Webpage! Check these stats out! http://www.6066gmcguy.org/EngineData.htm 478 CI V6. 637 V8. 702 V12. I've seen a couple of these. Unfortunately, they won't fit in the smaller trucks.

06-24-2005, 04:19 PM	#13
hevy_chevy67 Registered User Join Date: May 2005 Location: Blackfalds, Alberta Posts: 593	The white C40 I posted above has a 283 V8 in it. Same size of motor I'm putting in my 67 C10. __________________ 1971 Chevrolet K10 - SWB, 5.3LS, 4L60e 1970 Chevrolet K5 Blazer - Project 1969 Chevrolet C10 - SWB, 350 Holley Sniper, 700r4 1969 GMC Suburban - 5.3 LS, 4L60e

06-24-2005, 09:31 PM	#14
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Tall Deck 427,the ones with the chrome vents in fenders.And,down to I-6s,292 I believe. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

06-24-2005, 10:53 PM	#15
bagged91 Out draggin' Join Date: Jan 2004 Location: Pitman,NJ Posts: 1,574	Yep, Tall Deck 366 & 427's. I haven't personally seen any small blocks but they also had the V & I 6's and also a diesel(only saw one). __________________ 91 GMC Xcab LB-Bags/bd/caddy clip SOLD 72 C10 Cheyenne Super LWB SOLD 92 GMC K1500 Burb 72 C10 Burb (ex. Cheesewagon)SOLD 72 C20 Burb parts truck 71 C10 Burb "project"



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06-25-2005, 03:20 AM	#16
rwgregory Registered User Join Date: Apr 2005 Location: Chula Vista, California Posts: 495	Back in the late '70's I helped a neighbor who owned a concrete company light a fire in his '67 C-50 dump truck. Stock it had a 283,(with a governor no less), and didn't have the power to get out of it's own way. Picked up a 427 from a wrecked Corvette complete with an aluminum hi-rise and worked-on open chamber heads and bolted it right up to the stock 4-spd. and 16" clutch! Amazingly a set of Hooker fender-well headers fit like they were made for it and thus my neighbor had one of the baddest dump trucks to ever haul a load of gravel. Neat thing is, after removing the grill, grill- support and radiator, the engine was right there making it one of the easiest motor- swaps I have ever done,(didn't even have to remove the hood). rwgregory __________________ rwgregory 67 GMC 2500 ,2w/d wide box 305 V-6, 4-speed

06-25-2005, 06:37 AM	#17
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	That`ll kill a car motor quick. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

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