GMC vs CHEVY ??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rkintn_68 · 09-25-2012, 07:45 PM

I am new here and to body work .

I have a question and I have read for days on this forum and can not really understand or figure out the answers to these ???'s

Are the cabs,cowls,and doors on all years 67 thru 72 GMC & CHEVY the same
shape , size ,ect .? enterchangeable with each year ?

I think I understand that the hoods and fenders did change shape from 69 to 70 ?

How far off are the average aftermarket body parts from the original ?

sean1969c10 · 09-25-2012, 07:54 PM

As far as I know, the cabs, cowls and doors are the same. GMC fenders are the same as the 67-68 Chevy. 68 and later GMCs having marker lights like a 68 Chevy. If I'm wrong someone will correct me but this is my understanding.

Tomahawk30 · 09-25-2012, 07:58 PM

The 72 doors are slightly different than the earlier years, but are still essentially interchangeable with the others. I think the only differences are the length of the studs for the window and door handles, and there's an extra screw for the wing window on the inside.

sean1969c10 · 09-25-2012, 08:02 PM

Yes I forgot about the 72's doors, they will bolt up and fit but the details inside are different due to the plastic door panels.

rkintn_68 · 09-25-2012, 09:05 PM

So can you put 67 front parts on a 72 cab ?

71swb4x4 · 09-25-2012, 09:11 PM

Quote:

Originally Posted by rkintn_68

So can you put 67 front parts on a 72 cab ?

Absolutely. It's common for people to swap their favorite front end on their 67-72 GM truck.

**special-K** · 09-25-2012, 09:51 PM

Ask about a specific interchange and we'll tell you what's involved.

Andy4639 · 09-25-2012, 10:38 PM

For the most part yes parts interchange on all these models.
But there are differances in them as the 72 doors.

To put a 67 front end on a 72 cab, yes u can do it but you need all of the 67 front end core support fenders hood everything.

Tinkermc · 09-25-2012, 10:56 PM

did you get enough or still need answers?

50bomb · 09-25-2012, 11:11 PM

Will a 67-68 gmc hood work on a 67 chevy truck front end?

71swb4x4 · 09-25-2012, 11:32 PM

Quote:

Originally Posted by 50bomb

Will a 67-68 gmc hood work on a 67 chevy truck front end?

EXACTLY the same hood.

50bomb · 09-25-2012, 11:39 PM

Quote:

Originally Posted by 71swb4x4

exactly the same hood.

thank you!

rkintn_68 · 09-26-2012, 07:50 AM

Thanks guys , here is wat I got going on , a 72 GMC cab , and the whole front
of a 68 chevy in afternarket pieces from LMC ... I have got a lot of ajustment
here to make this work as you can see in the pics ... the hood is not fitting or
lineing up ... It looks like the hood has more arch to it, than the fenders ...

**special-K** · 09-26-2012, 08:26 AM

First of all,did you get a 67/68 radiator core support and use the 67/68 mounts for it? Second,unfortunately the aftermarket parts are not made very well. The fenders are to flat on top and don't follow the contour of the hood. There's issues with matching the contour of the doors,too. It looks like you need to bring the cowl cover up. and the hood down. The hood springs may need a tweak and/or just adjustment mounting to the hood. Are you sitting on an original 4wd frame? Did you use 4wd cab cushions?

rkintn_68 · 09-26-2012, 08:49 AM

Quote:

Originally Posted by special-K

First of all,did you get a 67/68 radiator core support and use the 67/68 mounts for it? Second,unfortunately the aftermarket parts are not made very well. The fenders are to flat on top and don't follow the contour of the hood. There's issues with matching the contour of the doors,too. It looks like you need to bring the cowl cover up. and the hood down. The hood springs may need a tweak and/or just adjustment mounting to the hood. Are you sitting on an original 4wd frame? Did you use 4wd cab cushions?

Yes i have the 67/68 core support , and mounts , yes on a 72 GMC K 1500
frame and cab , you are right about the aftermarket stuff not the same, i agree
the match to the doors and cab not perfect but the hood i can not live with ...
Will try some new hinges and tweak a little more ... I will probably try and
get a stock hood without the cowl ... Or maybe just shop around for the original
72 front end parts ... That wat it all about for me , something to play with ...
Thanks

**raggedjim** · 09-26-2012, 09:25 AM

Yeah, the cowl hoods are tricky, some are better than others, even from the same supplier. If you start looking for a 67-68 flat hood I believe I have a couple.

I'm in Murray Ky

Good luck, Rg

rkintn_68 · 09-26-2012, 07:43 PM

Quote:

Originally Posted by raggedjim

Yeah, the cowl hoods are tricky, some are better than others, even from the same supplier. If you start looking for a 67-68 flat hood I believe I have a couple.

I'm in Murray Ky

Good luck, Rg

can you pm me and maybe some pics ? i dont live but a hour from you , i think ?

**raggedjim** · 09-27-2012, 09:53 AM

Quote:

Originally Posted by rkintn_68

can you pm me and maybe some pics ? i dont live but a hour from you , i think ?

No problem, I'll try to get pics tonight, but it will have to stop raining first! An hour is about right.

Rg

**special-K** · 09-26-2012, 09:39 AM

If you give up on the repro stuff,maybe find yourself some '68 Chevy/68-72 GMC fenders. At east then you'll have something good to eye the hood up with. If it still won't fit well enough,then go to original hood. We put together a '68 with all new sheetmetal clip,including cowl hood.This was "the good stuff" and we had similar problems. We got it pretty good after a lot of work,but the fenders are just not right. The only problem we had with the hood was at the back of the "rise" both sides were completely different. One went straight up and the other had a slant. How the heck does that pass? With hoods it doesn't take much for one to get tweaked in shipping/handling. They come from very far away,like about everything these days ):. Yours almost looks bowed up like the sides at the back are pinched in. Ain't it great?

rkintn_68 · 09-26-2012, 07:53 PM

Quote:

Originally Posted by special-K

If you give up on the repro stuff,maybe find yourself some '68 Chevy/68-72 GMC fenders. At east then you'll have something good to eye the hood up with. If it still won't fit well enough,then go to original hood. We put together a '68 with all new sheetmetal clip,including cowl hood.This was "the good stuff" and we had similar problems. We got it pretty good after a lot of work,but the fenders are just not right. The only problem we had with the hood was at the back of the "rise" both sides were completely different. One went straight up and the other had a slant. How the heck does that pass? With hoods it doesn't take much for one to get tweaked in shipping/handling. They come from very far away,like about everything these days ):. Yours almost looks bowed up like the sides at the back are pinched in. Ain't it great?

I am with ya on that ... I believe the hood is arched or maybe the fenders are
not arched enough, hard to make chicken salad out of chicken , you know !!!
I appreciate your advice ... Thanks

Andy4639 · 09-26-2012, 08:31 PM

Is the hood bolted down are just sitting there? The hood to cowl gap is way to close. U need about a 1/4" gad there and the hinges maybe holding the hood up. Does the cowl have any shims under it before it was bolted down?

As stated new metal parts are tuff to get good gaps and when I say good gaps I mean anything from 1/4" to 1/2" depending on what part it is with out body work. Good luck with it though and just take your time.

rkintn_68 · 09-26-2012, 08:52 PM

Quote:

Originally Posted by Andy4639

Is the hood bolted down are just sitting there? The hood to cowl gap is way to close. U need about a 1/4" gad there and the hinges maybe holding the hood up. Does the cowl have any shims under it before it was bolted down?

As stated new metal parts are tuff to get good gaps and when I say good gaps I mean anything from 1/4" to 1/2" depending on what part it is with out body work. Good luck with it though and just take your time.

Hood is bolted to hinges and hinges are bolted ...The cowl does have shimms
on the passenger side and is fastened back to cab as far back as it will go.
thanks

PanelDeland · 09-26-2012, 09:47 AM

Keep in mind that the factory did not do a great job of alignment on these trucks when new.But certainly better than what you got.The adjustment and alignment of body panels is one of the things that make a big difference between a good looking truck and a great looking one.Also after 40+ years,there's some settling.tweaking etc. of a truck.Using parts from more tha one and/or aftermarket means they didn't "grow" together.

I don't think I have the patience or skill to do great bodywork.

rkintn_68 · 09-26-2012, 07:49 PM

Quote:

Originally Posted by PanelDeland

Keep in mind that the factory did not do a great job of alignment on these trucks when new.But certainly better than what you got.The adjustment and alignment of body panels is one of the things that make a big difference between a good looking truck and a great looking one.Also after 40+ years,there's some settling.tweaking etc. of a truck.Using parts from more tha one and/or aftermarket means they didn't "grow" together.

I don't think I have the patience or skill to do great bodywork.

I hear ya !!! Live and learn ... I wanted one these trucks and thought I was
on a good one but still for the money I paid for it and if I have to redo it
still be in good shape ... Its still a project in motion !!! Thanks ...

Square_78 · 09-27-2012, 12:00 AM

You didnt do any body panel alignment or fitting before you painted everything?

09-25-2012, 07:45 PM	#1
rkintn_68 Registered User Join Date: Sep 2012 Location: clarksville tn Posts: 806	GMC vs CHEVY ??? I am new here and to body work . I have a question and I have read for days on this forum and can not really understand or figure out the answers to these ???'s Are the cabs,cowls,and doors on all years 67 thru 72 GMC & CHEVY the same shape , size ,ect .? enterchangeable with each year ? I think I understand that the hoods and fenders did change shape from 69 to 70 ? How far off are the average aftermarket body parts from the original ?

09-25-2012, 07:54 PM	#2
sean1969c10 Registered User Join Date: Mar 2008 Location: Powhatan, Va. Posts: 376	Re: GMC vs CHEVY ??? As far as I know, the cabs, cowls and doors are the same. GMC fenders are the same as the 67-68 Chevy. 68 and later GMCs having marker lights like a 68 Chevy. If I'm wrong someone will correct me but this is my understanding. __________________ Sean "If your gonna be dumb, you gotta be tough" 1960 Chevy Impala Sedan - my 25 year search is over!! 1969 C-10 longbed - Nice day DD 1970 Chevy Nova - Street and Strip Project 2002 Acura MDX my DD 2007 Honda Odssey - My Wife's "Mommy Van"

09-25-2012, 07:58 PM	#3
Tomahawk30 Registered User Join Date: Jun 2010 Location: Russellville, KY Posts: 956	Re: GMC vs CHEVY ??? The 72 doors are slightly different than the earlier years, but are still essentially interchangeable with the others. I think the only differences are the length of the studs for the window and door handles, and there's an extra screw for the wing window on the inside. __________________ 1979 Silverado C10 Shortbox - Photo Album 1977 Silverado K20 Camper Special - Photo Album 1972 C10 Custom Deluxe Highlander - sold 1971 Cheyenne Super Longhorn -sold 1972 Cheyenne Super SWB 4x4 -sold, bought back, sold again... I'm dumb. 1970 Chevy C10 SWB "Sprout" -sold 1972 Cheyenne K20 -sold 1969 GMC Shortbox Stepside 4x4 -sold 1972 GMC Jimmy 4x4 -sold

09-25-2012, 08:02 PM	#4
sean1969c10 Registered User Join Date: Mar 2008 Location: Powhatan, Va. Posts: 376	Re: GMC vs CHEVY ??? Yes I forgot about the 72's doors, they will bolt up and fit but the details inside are different due to the plastic door panels. __________________ Sean "If your gonna be dumb, you gotta be tough" 1960 Chevy Impala Sedan - my 25 year search is over!! 1969 C-10 longbed - Nice day DD 1970 Chevy Nova - Street and Strip Project 2002 Acura MDX my DD 2007 Honda Odssey - My Wife's "Mommy Van"

09-25-2012, 09:05 PM	#5
rkintn_68 Registered User Join Date: Sep 2012 Location: clarksville tn Posts: 806	Re: GMC vs CHEVY ??? So can you put 67 front parts on a 72 cab ?

09-25-2012, 09:51 PM	#7
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: GMC vs CHEVY ??? Ask about a specific interchange and we'll tell you what's involved. __________________ "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 ~

09-25-2012, 10:38 PM	#8
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: GMC vs CHEVY ??? For the most part yes parts interchange on all these models. But there are differances in them as the 72 doors. To put a 67 front end on a 72 cab, yes u can do it but you need all of the 67 front end core support fenders hood everything. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

09-25-2012, 10:56 PM	#9
Tinkermc Registered User Join Date: Jul 2011 Location: Farmville, Va Posts: 3,026	Re: GMC vs CHEVY ??? did you get enough or still need answers?

09-25-2012, 11:11 PM	#10
50bomb Registered User Join Date: Jul 2010 Location: Hemet,Ca Posts: 1,502	Re: GMC vs CHEVY ??? Will a 67-68 gmc hood work on a 67 chevy truck front end? __________________ Stovebolt-It is painted

09-26-2012, 07:50 AM	#13
rkintn_68 Registered User Join Date: Sep 2012 Location: clarksville tn Posts: 806	Re: GMC vs CHEVY ??? Thanks guys , here is wat I got going on , a 72 GMC cab , and the whole front of a 68 chevy in afternarket pieces from LMC ... I have got a lot of ajustment here to make this work as you can see in the pics ... the hood is not fitting or lineing up ... It looks like the hood has more arch to it, than the fenders ... Attached Images

09-26-2012, 08:26 AM	#14
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: GMC vs CHEVY ??? First of all,did you get a 67/68 radiator core support and use the 67/68 mounts for it? Second,unfortunately the aftermarket parts are not made very well. The fenders are to flat on top and don't follow the contour of the hood. There's issues with matching the contour of the doors,too. It looks like you need to bring the cowl cover up. and the hood down. The hood springs may need a tweak and/or just adjustment mounting to the hood. Are you sitting on an original 4wd frame? Did you use 4wd cab cushions? __________________ "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 ~

09-26-2012, 09:25 AM	#16
raggedjim Senior Member Join Date: Jun 2002 Location: Murray, Kentucky Posts: 3,476	Re: GMC vs CHEVY ??? Yeah, the cowl hoods are tricky, some are better than others, even from the same supplier. If you start looking for a 67-68 flat hood I believe I have a couple. I'm in Murray Ky Good luck, Rg __________________ Roger '68 Short step - https://67-72chevytrucks.com/vboard/...d.php?t=849675 '69 ('70?) 2wd Blazer '70 GMC Jimmy 2wd '73 Firebird - https://67-72chevytrucks.com/vboard/...d.php?t=853203

09-26-2012, 09:39 AM	#19
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: GMC vs CHEVY ??? If you give up on the repro stuff,maybe find yourself some '68 Chevy/68-72 GMC fenders. At east then you'll have something good to eye the hood up with. If it still won't fit well enough,then go to original hood. We put together a '68 with all new sheetmetal clip,including cowl hood.This was "the good stuff" and we had similar problems. We got it pretty good after a lot of work,but the fenders are just not right. The only problem we had with the hood was at the back of the "rise" both sides were completely different. One went straight up and the other had a slant. How the heck does that pass? With hoods it doesn't take much for one to get tweaked in shipping/handling. They come from very far away,like about everything these days ):. Yours almost looks bowed up like the sides at the back are pinched in. Ain't it great? __________________ "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 ~

09-26-2012, 08:31 PM	#21
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: GMC vs CHEVY ??? Is the hood bolted down are just sitting there? The hood to cowl gap is way to close. U need about a 1/4" gad there and the hinges maybe holding the hood up. Does the cowl have any shims under it before it was bolted down? As stated new metal parts are tuff to get good gaps and when I say good gaps I mean anything from 1/4" to 1/2" depending on what part it is with out body work. Good luck with it though and just take your time. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

09-26-2012, 09:47 AM	#23
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,992	Re: GMC vs CHEVY ??? Keep in mind that the factory did not do a great job of alignment on these trucks when new.But certainly better than what you got.The adjustment and alignment of body panels is one of the things that make a big difference between a good looking truck and a great looking one.Also after 40+ years,there's some settling.tweaking etc. of a truck.Using parts from more tha one and/or aftermarket means they didn't "grow" together. I don't think I have the patience or skill to do great bodywork. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"



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09-27-2012, 12:00 AM	#25
Square_78 Registered User Join Date: Mar 2012 Location: Okanagan Valley, BC, Canada Posts: 1,237	Re: GMC vs CHEVY ??? You didnt do any body panel alignment or fitting before you painted everything? __________________ #teamlongbed "I refuse to go disc brakes. I actually love drum brakes. It makes for an adventure." - 50bomb 1978 Chevy shop truck - static 6/8" 1970 GMC 1500 - Accuair eLevel Resto-mod http://67-72chevytrucks.com/vboard/s...d.php?t=537497

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