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#1 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,369
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Is this original?????
Truck in question is my ‘72 K20 Cheyenne with factory AC. All the vacuum tanks I’ve ever seen on these trucks are the round plastic type. This one looks like an old soup can... but, look at the bracket that mounts it to the bracket on the outer housing. It looks almost too good of quality to be a back woods Bubba job. Almost like it was manufactured... did any of these trucks have metal cans? I think I know the answer already but just curious... here’s a few pictures.
Before any one says anything I’m going to replace the rubber fuel hose with stainless and replace the air filter.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0 ![]() |
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#2 |
Registered User
Join Date: Feb 2003
Location: Santa Ana, CA
Posts: 2,191
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Re: Is this original?????
I've seen metal "soup" cans used as OEM vacuum reservoirs on many makes of older vehicles. So, I have little doubt that this is original and correct.
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#3 |
Junior Member
![]() Join Date: Mar 2010
Location: AZ
Posts: 51
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Re: Is this original?????
I may be incorrect but that looks like the charcoal can that was part of the emissions or smog. I had one or something similar on my 72 custom deluxe back in the day in Ca.
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#4 |
Proprietor of Dale's Corner
![]() Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,083
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Re: Is this original?????
I have seen them before, original, I'm not sure.....
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"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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#5 |
Account Suspended
![]() Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
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Re: Is this original?????
Oh geez....yes its factory, changed to plastic in 1970.
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#6 |
Senior Member
![]() Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,899
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Re: Is this original?????
Looks like the old Ford cans to me.
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson |
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#7 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,369
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Re: Is this original?????
So someone must have yanked this off of an earlier truck... good to know. Thanks everyone.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0 ![]() |
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#8 |
Senior Member
![]() Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,844
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Re: Is this original?????
Subscribed...
Original can on my '69. However, the steel bracket is 4 wheel drive only (all years?) from what I've read. I have no reason to doubt Randy on when the change to plastic was made, but I have seen them in pictures of later trucks that have been posted. I've been curious about the change to plastic and don't recall this being discussed in an earlier thread.
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Jim |
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#9 |
Account Suspended
![]() Join Date: Jul 2016
Location: Tacoma, WA
Posts: 6,873
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Re: Is this original?????
Its possible 70 used the metal can, i have never seen an original 71 or 72 that had the metal can. 69 for sure is metal.
The assembly manual might show the metal can, not sure. I havent looked at it in yesrs. |
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#10 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,369
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Re: Is this original?????
Well if there’s a chance it’s original I may just leave it. I bought that plastic tank just because I figured that was what it had originally. I do know it’s got one broken nipple in the rubber plug on the end. Not sure where I’d find those parts?
Here’s another picture from further back. I wonder if maybe the assembly plant had anything to do with it? It’s a late May/early June 1972 Janesville truck.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0 ![]() Last edited by 57taskforce; 05-20-2020 at 05:21 PM. |
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#11 |
Senior Member
![]() Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,844
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Re: Is this original?????
Sorry to break the news to you, but that is not an original vacuum can. It's way to big. Here are 2 views of my original.
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Jim |
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#12 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,369
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Re: Is this original?????
Actually that’s not bad news at all as I’ve always thought it looked ugly in there. I’ll yank it when I get to that point.
__________________
Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0 ![]() |
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#13 |
Registered User
Join Date: Jan 2010
Location: Here
Posts: 5,482
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Re: Is this original?????
Cadillac and higher optioned cars used the bigger cans cause they had more options that used vacuum.
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#14 |
Registered User
Join Date: Apr 2011
Location: Fairview Park, Ohio
Posts: 1,031
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Re: Is this original?????
Ford F150s had the stewed charcoal caninsters all the way into the 90’s.
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My build page http://67-72chevytrucks.com/vboard/s...d.php?t=764662 My cabinet building site http://www.cbcabinets.com |
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#15 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: Is this original?????
That's a coffee can. The earlier GM Trucks used nut cans. LUVs used soup cans
![]() I never paid any mind to which got what but I've always seen the plastic on 71/72s.
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"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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