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#1 |
Senior Member
![]() Join Date: Sep 2002
Location: Greenfield Mass.
Posts: 551
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what is the difference in the rad supports 67-68 to 69-72. I have a good 72 one will it fit my 68 without to much alterations. Or is thier any difference at all. T
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Certifiably crazy person Last edited by biglou55; 03-27-2008 at 05:51 PM. |
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#2 |
TOTY 2006
![]() Join Date: Dec 1999
Location: Magalia CA USA
Posts: 2,270
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Re: radiator core support differences
Chevy or GMC???
The core support will work for all the years, but themain difference is the headlight bucket section. 67-68 chev have no bucket, 69-72 chev have single bucket, 67-72 GMC have double bucket. You can remove or add the buckets depending on what year you have. |
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#3 |
Registered User
Join Date: Apr 2006
Location: Texas
Posts: 259
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Re: radiator core support differences
67-68 have no headlight bosses like the 72
i think you can cut them off and use the core on the 67-68 someone should know though |
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#4 |
Senior Member
![]() Join Date: Sep 2002
Location: Greenfield Mass.
Posts: 551
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Re: radiator core support differences
It,s a 68 chevy. I will check the differences when I get home from work. Thanks Lou. H. I had forgotten how fast this board moves. I had to scroll down and look for my post.
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Certifiably crazy person Last edited by biglou55; 03-27-2008 at 08:57 PM. |
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#5 |
Registered User
Join Date: Jun 2007
Location: Boca Raton, FL
Posts: 476
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Re: radiator core support differences
Don't mean to hijack, but maybe a solution for us both:
Are the the same physical shape? I have a perfect 69-72 rad support and a 67-68 with hole where battery box was and would like to know if I could cut out and weld in the piece. I don't have both side by side to compare, my buddy has the 67-68. Last edited by chevychase; 04-07-2008 at 12:46 AM. |
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#6 |
Senior Member
![]() Join Date: Jul 2007
Location: Clarksville TN 37043
Posts: 8,702
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Re: radiator core support differences
They are the same
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Chuck 68 ![]() ![]() http://67-72chevytrucks.com/vboard/s...d.php?t=374892 My trailer redo http://67-72chevytrucks.com/vboard/s...69#post5893869 Chuy my 59 bug http://67-72chevytrucks.com/vboard/s...d.php?t=653798 Putnam 87 GMC Shop truck http://67-72chevytrucks.com/vboard/s...d.php?t=707687 |
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#7 |
Registered User
Join Date: Feb 2008
Location: Huntsville, AL
Posts: 197
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Re: radiator core support differences
Big block and small block core supports are different. Big-block design is for a heavy-duty 4 row radiator.
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#8 |
Moderator
![]() Join Date: May 2007
Location: Southern Cal
Posts: 20,004
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Re: radiator core support differences
If you use the 72 core support on your 68 it will work, but you will have to change your hood and fenders to the 69-72 style or they will not line up properly when you mount them.
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#9 |
Senior Member
![]() Join Date: Sep 2002
Location: Greenfield Mass.
Posts: 551
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Re: radiator core support differences
So they are not all the same.All
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Certifiably crazy person |
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#10 |
Senior Member
![]() Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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Re: radiator core support differences
I have a 68 and a 70 support sitting next to each other. Looks like they are the same except for the headlight buckets. If you remove the buckets from the 72 support you would be really be the same as a 68 except there are no square holes in the newer support for the headlight adjustment screws,or a place for the spring. Also, the 68 headlight hole is chamfered or rounded in where as the newer support is just flat metal, might interfere with the healight bucket fit. Looks like it would work with some modification time, but to me personally, I wouldn't have the time, tools or patience to make it work. JMHO
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 |
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#11 |
TOTY 2006
![]() Join Date: Dec 1999
Location: Magalia CA USA
Posts: 2,270
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Re: radiator core support differences
Negative on the small block / big block difference.
What is different for SM/BB are the top and bottom mounts for the radiator. These can be removed and replaced easily, does not require different core supports...... |
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#12 |
Senior Member
![]() Join Date: Sep 2002
Location: Greenfield Mass.
Posts: 551
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Re: radiator core support differences
Thanks John. That is what I thought. Just a different width on the hold down brackets/mounts.
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#13 |
Registered User
![]() Join Date: Jul 2014
Location: Richland Washington
Posts: 127
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Re: radiator core support differences
I replaced my 3 core radiator with a 4 core, I ordered new retainers and support pads, both upper and lowers from LMC. I had to notch the radiator support for the lower retainer. I believe the big block trucks had a radiator support designed to for the larger radiator, but it was easy enough to redesign mine with the 4” grinder! I would post a pic, but I don’t think much if any of it is visible anymore.
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#14 |
Registered User
Join Date: Dec 2014
Location: Olympia, Wa.
Posts: 10
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Re: radiator core support differences
I had to notch the bottom on mine to fit the 4 core supports too.
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#15 |
Registered User
Join Date: Nov 2000
Location: Huntsville Ontario Canada
Posts: 4,052
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Re: radiator core support differences
I tired removing the headlight buckets off my 72 Chevy support when I built a 67 Chevy clip. The head light spacing was not the same as a 67 68 support. Measure them very closely before you cut and you will see what I am describing.
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1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD |
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