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#51 |
Roadtrip!
![]() Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,734
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Re: So when in 1972 did GM start installing single wall tops?
Pete, I will add to the thread and let you work your detective skills with the info from my blazers/jimmys.
Blazer 1, single wall top with a speaker grill on top of the dash. Blazer 2 single wall with no speaker on top of dash.
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67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
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#52 |
Roadtrip!
![]() Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,734
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Re: So when in 1972 did GM start installing single wall tops?
Wish I could be of more help, but this is what I have.
Jimmy 1, single wall top, no speaker. Jimmy 2 double wall, no speaker.
__________________
67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
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#53 |
Roadtrip!
![]() Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,734
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Re: So when in 1972 did GM start installing single wall tops?
This will either help or just add to the confusion...
Jimmy 3, single wall, no speaker on top. pic 3 is a jimmy I parted with a single wall top. pic 4 is a body in storage and looks to have a double wall top, but not sure if it is original to it. (can't open the drivers door at the moment either.)
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67 gmc custom lwb dakota truck. Sold...And bought back 69 swb 4x4 project (in progress) 70 c-10 lwb texas truck 70 4x4/BB/bkts/posi/tach(retired) 70 swb (wifes) 70 jimmy camper 71 K-5 factory 2wd 71 cheyenne 4x4/tach/posi/ plow rig 71 Cheyenne20 BB, buckets, tach, tilt, 4 speed 72 jimmy CST wyoming rig 72 jimmy Colorado rig 72 lifted texas 4x4 3/4 ton burb 65 fury conv. 383/auto 65 chrysler 300 "L" 413 auto |
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#54 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,379
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Re: So when in 1972 did GM start installing single wall tops?
Eric thanks for posting. I’ll comb through these. I need to jog my memory regarding sequence numbers for GMCs - for some reason I seem to recall the sequence numbers differed and weren’t inline with Chevy but I may be mistaken.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#55 |
Active Member
![]() Join Date: Jun 2015
Location: Huntsville, AL
Posts: 195
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Re: So when in 1972 did GM start installing single wall tops?
My Blazer was built in Flint, sequence number 178459, has May dates in under the dash pad and on the NP205. Speaker is located in the dash.
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#56 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,379
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Re: So when in 1972 did GM start installing single wall tops?
Thanks for posting. I ran into a guy with a 2wd Flint build 72 had an original single wall (that he swapped for a double wall) no speaker grill in the dash. Sequence was 126xxx
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#57 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,379
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Re: So when in 1972 did GM start installing single wall tops?
Here’s another Flint built single wall without pickup style speaker grill atop dash so originally had a speaker beneath the dash. December 1971 build.
Thanks Eric.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#58 |
Registered User
Join Date: Dec 2011
Location: labadie mo
Posts: 48
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Re: So when in 1972 did GM start installing single wall tops?
1972 St Louis built 168756!
Speaker under dash and black double wall top when I bought it! Owned since 1980 with no reason to believe it was not original. Replaced it with a single wall many years ago. |
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#59 |
Registered User
![]() Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
Posts: 3,008
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Re: So when in 1972 did GM start installing single wall tops?
I'll dig up some old photos before selling it- was a '72 St. Louis built with double wall top. Actually Mudduck74 bought it but I haven't seen it since.
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'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
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#60 | |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,379
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Re: So when in 1972 did GM start installing single wall tops?
Quote:
What I’d like to know is when St Louis stopped making the 72 Blazer relative to Flint. Flint assembled them until at least May of 72 and probably later. I’m not sure about St Louis.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#61 |
Registered User
Join Date: May 2008
Location: 204
Posts: 903
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Re: So when in 1972 did GM start installing single wall tops?
72 2wd GMC built in Flint on March 14th 1972 Single wall no speaker
72 4wd Chev built in Flint May 1972 Single wall yes speaker
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1969 Chevy Custom Camper 3/4 ton Rust free survivor 1972 Chevy Blazer CST 4x4 Almost Rust free survivor 1972 GMC Jimmy 2wd Undergoing surgery |
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#62 |
Carpe manana
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Location: Eau Claire, WI
Posts: 12,379
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Re: So when in 1972 did GM start installing single wall tops?
All 72 K5s had provisions for both top styles
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#63 |
Registered User
Join Date: May 2008
Location: 204
Posts: 903
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Re: So when in 1972 did GM start installing single wall tops?
Id have to check my Blazer but my 72 Jimmy definitely only had holes for a single wall
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1969 Chevy Custom Camper 3/4 ton Rust free survivor 1972 Chevy Blazer CST 4x4 Almost Rust free survivor 1972 GMC Jimmy 2wd Undergoing surgery |
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#64 | |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,379
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Re: So when in 1972 did GM start installing single wall tops?
Quote:
The LH rear quarter on my Blazer was replaced with a GM replacement that was not pulled from another K5. It was new but GM. It has provisions for both tops.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() Last edited by DeadheadNM; 11-14-2019 at 09:56 PM. |
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#65 |
Registered User
Join Date: Jun 2018
Location: Grand Rapids, Michigan
Posts: 2
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Re: So when in 1972 did GM start installing single wall tops?
I have a 72 I just bought a couple months ago from Las Vegas. I live in MI. It only has holes for a single wall top. Fortunately I was able to scrape the paint off my door sticker. No speaker hole in dash but looks like theres a mount for one.
Sorry spid is upside down... not sure why it flipped Last edited by FarmTruckGarage; 11-17-2019 at 10:58 PM. |
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#66 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,379
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Re: So when in 1972 did GM start installing single wall tops?
Thanks so much for posting. Interesting twist of information. Would love to see more examples. No sign then that the double wall holes were filled in?
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#67 |
Registered User
Join Date: Jun 2018
Location: Grand Rapids, Michigan
Posts: 2
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Re: So when in 1972 did GM start installing single wall tops?
No signs at all. As far as I can tell the quarters are original. Unfortunately I don’t have a single wall for it right now. I have 2 doubles.
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#68 |
Registered User
Join Date: Dec 2003
Location: Houston, TX
Posts: 734
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Re: So when in 1972 did GM start installing single wall tops?
my '72 (St. Louis) has both sets of holes and a double wall. the single-wall holes are 'sorta' filled in.
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'72 K5, known as 'the Fox.' |
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#69 |
Registered User
Join Date: Dec 2011
Location: labadie mo
Posts: 48
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Re: So when in 1972 did GM start installing single wall tops?
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#70 |
Registered User
Join Date: Dec 2003
Location: Houston, TX
Posts: 734
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Re: So when in 1972 did GM start installing single wall tops?
Mine is 165182, so yours is later than mine. Maybe more serial numbers will pin down a better date?
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'72 K5, known as 'the Fox.' |
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#71 |
Registered User
![]() Join Date: Nov 2018
Location: Oakdale, CA
Posts: 28
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Re: So when in 1972 did GM start installing single wall tops?
72 with single wall top
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#72 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,379
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Re: So when in 1972 did GM start installing single wall tops?
Thanks for posting.
__________________
1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#73 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,379
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Re: So when in 1972 did GM start installing single wall tops?
Here’s a photo from 1rippen76 that shows the difference between CST and non-CST single wall top to bedside strips. There are two styles each with LH and RH specificity.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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#74 |
Registered User
![]() Join Date: Nov 2018
Location: Oakdale, CA
Posts: 28
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Re: So when in 1972 did GM start installing single wall tops?
Are the ones on the left the CST? Those are the ones I have
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#75 |
Carpe manana
![]() ![]() Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,379
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Re: So when in 1972 did GM start installing single wall tops?
Correct. These clear the chrome trim that secures the top of the rear panels.
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1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 ![]() |
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