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Old 08-14-2016, 03:19 PM   #26
chad75
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Re: So when in 1972 did GM start installing single wall tops?

Why did they switch to single wall? Cheaper?
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Old 08-14-2016, 10:47 PM   #27
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Re: So when in 1972 did GM start installing single wall tops?

Quote:
Originally Posted by chad75 View Post
Why did they switch to single wall? Cheaper?
Wish I knew for certain. I'd speculate that the double wall tops were sagging and required the owner of a CST to remove the rear panels before top removal (a pita) so GM tried a new design ahead of the 73 model year. Thus far the data shows that single wall tops were used for only a portion of the 72 MY and only on K5s built at flint.
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Old 08-17-2016, 11:17 PM   #28
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Re: So when in 1972 did GM start installing single wall tops?

Flint built 1x wall 126497
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Old 08-17-2016, 11:18 PM   #29
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Re: So when in 1972 did GM start installing single wall tops?

one more
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Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, AASmedic, SoCoC10, Lumaestas, carbuff382
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Old 08-17-2016, 11:26 PM   #30
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Re: So when in 1972 did GM start installing single wall tops?

Switch from 2x wall to 1x wall at Flint some where between sequence #'s 7,636 and 12,592.
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Old 09-05-2016, 11:09 AM   #31
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Re: So when in 1972 did GM start installing single wall tops?

Another early 1972 MY Flint built Blazer (sequence 102567) with 2x wall top and a speaker below the dash:
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Old 03-15-2017, 11:45 PM   #32
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Re: So when in 1972 did GM start installing single wall tops?

A first for the record???

St Louis built 72 Blazer seq # 146724 that looks to be a near survivor and has a 1x wall top. On the hunt for additional St Louis built k5s that have the reasonable expectation of being originally outfitted with a 1x wall top.

Link to more pics: http://www.ebay.com/itm/1972-Chevrol...FYx1Cl&vxp=mtr
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1972 K5 CST Blazer
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
1972 K1500 GMC: http://67-72chevytrucks.com/vboard/s...d.php?t=638747

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Last edited by DeadheadNM; 03-15-2017 at 11:56 PM.
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Old 03-15-2017, 11:49 PM   #33
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Re: So when in 1972 did GM start installing single wall tops?

One by one on the iPad....
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1972 K5 CST Blazer
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
1972 K1500 GMC: http://67-72chevytrucks.com/vboard/s...d.php?t=638747

Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, AASmedic, SoCoC10, Lumaestas, carbuff382
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Old 03-15-2017, 11:50 PM   #34
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Re: So when in 1972 did GM start installing single wall tops?

Another...
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1972 K5 CST Blazer
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
1972 K1500 GMC: http://67-72chevytrucks.com/vboard/s...d.php?t=638747

Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, AASmedic, SoCoC10, Lumaestas, carbuff382
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Old 03-15-2017, 11:52 PM   #35
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Re: So when in 1972 did GM start installing single wall tops?

More...
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1972 K5 CST Blazer
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
1972 K1500 GMC: http://67-72chevytrucks.com/vboard/s...d.php?t=638747

Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, AASmedic, SoCoC10, Lumaestas, carbuff382
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Old 03-15-2017, 11:53 PM   #36
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Re: So when in 1972 did GM start installing single wall tops?

Uno mas...
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1972 K5 CST Blazer
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
1972 K1500 GMC: http://67-72chevytrucks.com/vboard/s...d.php?t=638747

Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, AASmedic, SoCoC10, Lumaestas, carbuff382
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Old 03-22-2017, 07:42 PM   #37
BlazerBill
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Re: So when in 1972 did GM start installing single wall tops?

I believe that 72 was the only year, that had double wall. With the ribbing running side to side. That's the way my three were configured. 69 4wd, 71 4wd
72 2wd highlander grapefruit yellow w/avocado cst.
Just a theory.
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