The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-12-2013, 07:42 PM   #1
rusty76
Registered User
 
rusty76's Avatar
 
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
Just curious...

It seems to me that '77 model year squarebodies seem to me to be more common. Often when I look at craigslist I see '77 and of course on up. But when it comes to the '75 and '76 models I don't seem to seem them listed as much. Am I missing something here? Did GM not make as many of these two years or something or is something else altogether? Just curious if I was the only one. Thanks.
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=581873
The low buck build threads. Check'em out!
http://67-72chevytrucks.com/vboard/s...d.php?t=666022
My build thread
Crossmembers CC
rusty76 is offline   Reply With Quote
Old 05-12-2013, 09:11 PM   #2
INSIDIOUS '86
Registered User
 
INSIDIOUS '86's Avatar
 
Join Date: Jul 2009
Location: washington
Posts: 4,178
Re: Just curious...

I think the mid 70s had a steel workers strike and gm used pretty much the equivalent of pot metal on the trucks of those years so they didn't make many or they rotted away. Idk for sure but I think that's the story
Posted via Mobile Device
__________________
377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac
3''spintech prostreet mufflers xpipe 1 3/4 headers
build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217
Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511
INSIDIOUS '86 is offline   Reply With Quote
Old 05-12-2013, 11:22 PM   #3
Rubble
Registered User
 
Join Date: Feb 2012
Location: Big Valley. Alberta
Posts: 674
Re: Just curious...

Quote:
Originally Posted by INSIDIOUS '86 View Post
I think the mid 70s had a steel workers strike and gm used pretty much the equivalent of pot metal on the trucks of those years so they didn't make many or they rotted away. Idk for sure but I think that's the story
Posted via Mobile Device
This makes sense,when I was in high school in 1982 there was a guy doing body work on a mid 70s,probably 74-76 model.The body on this thing was rusted terrible,my 82 that's over 30 years old is way better shape than this guys truck was & only 6-7 years old.Might be some truth to this eh...
Posted via Mobile Device
Posted via Mobile Device
__________________
1977 Chev C30 454/465/14ff DRW
1974 Chev C20.350/465/14ff

" Rock n Roll ain't noise pollution"
Rubble is offline   Reply With Quote
Old 05-12-2013, 09:50 PM   #4
Shyguy
Junior Member
 
Shyguy's Avatar
 
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
Re: Just curious...

I did not know that, I hardly ever see any of the older square bodies myself.
Attached Images
  
__________________
'67 Chevy C-20 short stepper - build complete, 454/SM-465.
'75 C-30 Single Cab DRW-350 small block/NP-435.
'77 GMC-6500 Dump Truck, 427 Tall Deck.
'92 GMC K-3500 Duallie, 454/4L80E.
Shyguy is offline   Reply With Quote
Old 05-12-2013, 10:19 PM   #5
mopar346
Registered User
 
Join Date: Jan 2011
Location: Quincy, FL
Posts: 533
Re: Just curious...

I wondered if it had to do with the gas shortage of 74.
mopar346 is offline   Reply With Quote
Old 05-12-2013, 11:54 PM   #6
lap15
Registered User
 
Join Date: Jun 2011
Location: Womelsdorf,PA
Posts: 93
Re: Just curious...

Most of the trucks from '73-'76 rotted away long ago due to poor quality sheet metal. My dad had a '76 and the body was shot by 1981 when he traded it in. I searched for 7 years for an unmolested '75 K20 before I finally found one on ebay for $700. My truck is a one owner truck w-67,000 miles, the original Moss Gold paint has great patina, the interior is near perfect- but the body is shot from the wheel wells down. I was going to do a complete body swap with a newer truck but there's just something about the original looks of the mid 70's trucks- so I left it alone until I can do a proper restoration. I'll have to post some pics when I get a chance.

Last edited by lap15; 05-12-2013 at 11:59 PM.
lap15 is offline   Reply With Quote
Old 05-13-2013, 07:11 AM   #7
wraprail
Registered User
 
wraprail's Avatar
 
Join Date: Sep 2010
Location: Lake Havasu City Arizona
Posts: 863
Re: Just curious...

My 74C10 swb was rusted everywhere on the body but it also was from Alaska. The frame was good though.

Maybe Keith S can chime in here. He worked for the General making trucks during those years I think?
Posted via Mobile Device
__________________
wraprail is offline   Reply With Quote
Old 05-13-2013, 09:04 AM   #8
77 ChevySport
Registered User
 
Join Date: Oct 2010
Location: Central, IL
Posts: 201
Re: Just curious...

Quote:
Originally Posted by rusty76 View Post
It seems to me that '77 model year squarebodies seem to me to be more common. Often when I look at craigslist I see '77 and of course on up. But when it comes to the '75 and '76 models I don't seem to seem them listed as much. Am I missing something here? Did GM not make as many of these two years or something or is something else altogether? Just curious if I was the only one. Thanks.
FWIW: I believe that was the last year that Chevy outsold Ford in PickUp
Trucks. Larry P.S. It's been a long drought since then!
77 ChevySport is offline   Reply With Quote
Old 05-13-2013, 06:08 PM   #9
rusty76
Registered User
 
rusty76's Avatar
 
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
Re: Just curious...

I had heard someone talk about the metal but I would like to see Keith chime in. I've heard other thoughts as well. Like they were made from old ships, recycled. Who knows. Thanks once again.
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=581873
The low buck build threads. Check'em out!
http://67-72chevytrucks.com/vboard/s...d.php?t=666022
My build thread
Crossmembers CC
rusty76 is offline   Reply With Quote
Old 05-13-2013, 08:19 PM   #10
motornut
78K & 79C Jimmys
 
motornut's Avatar
 
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
Re: Just curious...

i know back in the early 80s they were thining out car pieces
like frame rails and backing plates,adding aluminum bits to save weight
used up against steel it caused serious corrosion problems here
__________________
John
1978 GMCJimmy4X4-350/203
1979 GMCJimmy4X2-305/350
motornut is offline   Reply With Quote
Old 05-14-2013, 03:47 PM   #11
tucsonjwt
Registered User
 
Join Date: Jul 2007
Location: Tucson, AZ
Posts: 3,188
Re: Just curious...

I had a 76 Scottsdale I bought used in Phoenix back about 1997 and the body was in perfect shape. Of course, the desert has no salt caused rust.
tucsonjwt is offline   Reply With Quote
Old 05-14-2013, 04:03 PM   #12
xrcr
Registered User
 
Join Date: Dec 2008
Location: Foristell, MO
Posts: 418
Re: Just curious...

My 76 was a rust bucket when I did the first resto in 1990. I'll soon be finished with a frame off. It will look the part but the rolling chassis is all that remains of the original.
xrcr is offline   Reply With Quote
Old 05-21-2013, 11:29 AM   #13
Keith Seymore
Registered User
 
Keith Seymore's Avatar
 
Join Date: May 2009
Location: Motor City
Posts: 9,209
Re: Just curious...

Quote:
Originally Posted by tucsonjwt View Post
I had a 76 Scottsdale I bought used in Phoenix back about 1997 and the body was in perfect shape. Of course, the desert has no salt caused rust.
LOL - people drive around there with NO PAINT on the metal and it still won't rust...

K
__________________
Chevrolet Flint Assembly
1979-1986
GM Full Size Truck Engineering
1986 - 2019
Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926
My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524
Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/
Keith Seymore is offline   Reply With Quote
Old 05-13-2013, 08:13 PM   #14
88Jimmy4x4
Registered User
 
88Jimmy4x4's Avatar
 
Join Date: Oct 2003
Location: houston, texas
Posts: 1,974
Re: Just curious...

Keith probably had build numbers, my 76 has no rust
__________________
2008 Silverado Z71 RCSB
1991 GMC Jimmy 4x4
1976 GMC Sierra C15 SWB
88Jimmy4x4 is offline   Reply With Quote
Old 05-14-2013, 04:02 PM   #15
cory d
Registered User
 
cory d's Avatar
 
Join Date: Dec 2011
Location: Arlington WA
Posts: 1,728
Re: Just curious...

oil crisis and no high zink primer intil 76. i have noticed that most squares are 77+. no one knows my 73-73 chevy and gmc grilles
cory d is offline   Reply With Quote
Old 05-21-2013, 11:27 AM   #16
Keith Seymore
Registered User
 
Keith Seymore's Avatar
 
Join Date: May 2009
Location: Motor City
Posts: 9,209
Re: Just curious...

Sorry for the delay (...geez - it took me a half hour to read all the responses)



Quote:
Originally Posted by cory d View Post
no high zink primer...
I think it's a combination of things, but mostly this.

I don't know that there was (intentionally) any thought of using any kind of inferior metal. Keep in mind this truck was designed in the late 60's/early 70's and that is simply where the technology was at the time.

I remember trucks around here where the fenders were totally gone and only the B96 wheel opening moldings flopping around in space (lol). But - the later trucks are essentially the same design, but with the addition of ELPO primer and improved draining, and coated metals. Many small, incremental improvements can make a world of difference.

Add to that fact that the '81 and up trucks are simply newer (...thank you Yogi Berra) and that the production volumes continued to ramp up through the product lifecycle and I think you can explain the perception proposed here.

K
__________________
Chevrolet Flint Assembly
1979-1986
GM Full Size Truck Engineering
1986 - 2019
Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926
My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524
Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/
Keith Seymore is offline   Reply With Quote
Old 05-14-2013, 05:53 PM   #17
rusty76
Registered User
 
rusty76's Avatar
 
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
Re: Just curious...

Well see if we can't get Keith to chime in here.....come on Keith we're you at?
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=581873
The low buck build threads. Check'em out!
http://67-72chevytrucks.com/vboard/s...d.php?t=666022
My build thread
Crossmembers CC
rusty76 is offline   Reply With Quote
Old 05-17-2013, 08:05 PM   #18
rusty76
Registered User
 
rusty76's Avatar
 
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
Re: Just curious...

ttt
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=581873
The low buck build threads. Check'em out!
http://67-72chevytrucks.com/vboard/s...d.php?t=666022
My build thread
Crossmembers CC
rusty76 is offline   Reply With Quote
Old 05-17-2013, 08:24 PM   #19
meatwagon83
Registered User
 
meatwagon83's Avatar
 
Join Date: Dec 2012
Location: Preble county ohio
Posts: 1,914
Re: Just curious...

seems like every round eye square i find are 79s
__________________
"DON'T TOUCH THE TRIM!!"-Early Kyler
meatwagon83 is offline   Reply With Quote
Old 05-17-2013, 08:50 PM   #20
INSIDIOUS '86
Registered User
 
INSIDIOUS '86's Avatar
 
Join Date: Jul 2009
Location: washington
Posts: 4,178
Re: Just curious...

Knock knock. Keith?
Posted via Mobile Device
__________________
377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac
3''spintech prostreet mufflers xpipe 1 3/4 headers
build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217
Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511
INSIDIOUS '86 is offline   Reply With Quote
Old 05-17-2013, 10:34 PM   #21
59bones
Registered User
 
59bones's Avatar
 
Join Date: Sep 2011
Location: Elgin Illinois
Posts: 143
Re: Just curious...

I'm not Keith but here is an original paint no rust 76.
Attached Images
   
59bones is offline   Reply With Quote
Old 05-17-2013, 10:52 PM   #22
Shyguy
Junior Member
 
Shyguy's Avatar
 
Join Date: Dec 2006
Location: Southeast Missouri
Posts: 2,436
Re: Just curious...

Since I bought the '75 C-30 dually I have been looking at different square body trucks and have seen very few 73-76 trucks. Now I know why.

I thought the '75 I bought was pretty much stock, but since I knew very little about square bodies I was wrong. As I have looked it over I have found that the doors are from a '77 or so and the bed is from a '79 or newer. I am pretty sure the cab is a '75 for sure because of the vin tag being held on by the rosette rivets.
__________________
'67 Chevy C-20 short stepper - build complete, 454/SM-465.
'75 C-30 Single Cab DRW-350 small block/NP-435.
'77 GMC-6500 Dump Truck, 427 Tall Deck.
'92 GMC K-3500 Duallie, 454/4L80E.
Shyguy is offline   Reply With Quote
Old 05-18-2013, 07:13 AM   #23
rusty76
Registered User
 
rusty76's Avatar
 
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
Re: Just curious...

Beautiful '76! I'm telling you I can find '77s listed almost daily around here, but when it comes to the earlier '73-'76s it harder. I'd been looking for a set of original doors that were in better shape than mine and it's next to impossible in some ways. If I wanted the later doors that would be fine, but I don't like the door panels on the '77-up trucks. I like a little metal in my diet. Hopefully we can get Keith in here. Now I got you boys thinking.
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=581873
The low buck build threads. Check'em out!
http://67-72chevytrucks.com/vboard/s...d.php?t=666022
My build thread
Crossmembers CC
rusty76 is offline   Reply With Quote
Old 05-20-2013, 05:00 PM   #24
rusty76
Registered User
 
rusty76's Avatar
 
Join Date: Sep 2012
Location: Midway, NC
Posts: 3,275
Re: Just curious...

Last night I was lookin on CL and noticed a 77 and several 80 models up for sale. Even a 77 for parts, but nothing earlier.
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=581873
The low buck build threads. Check'em out!
http://67-72chevytrucks.com/vboard/s...d.php?t=666022
My build thread
Crossmembers CC
rusty76 is offline   Reply With Quote
Old 05-20-2013, 06:34 PM   #25
INSIDIOUS '86
Registered User
 
INSIDIOUS '86's Avatar
 
Join Date: Jul 2009
Location: washington
Posts: 4,178
Re: Just curious...

Your not the only one noticing.
Posted via Mobile Device
__________________
377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac
3''spintech prostreet mufflers xpipe 1 3/4 headers
build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217
Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511
INSIDIOUS '86 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:42 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com