Difference between 67-68 and 70-up core support - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gringoloco · 05-20-2006, 08:39 PM

Reason I ask is that I'm swapping my '70 over to a '67 front clip and was wondering if I could:

1) Modify my current core support to work or...

2) What body mounts do I need for a 67 support on a 70 frame?

Thanks in advance guys

-Chris

taylorde · 05-20-2006, 08:44 PM

As far as I know they are the same.But not exactly sure!

jsbgump · 05-20-2006, 09:02 PM

The headlight buckets that mount to the core support is what is differn't

mbgmike · 05-20-2006, 09:04 PM

You beat me to it.

jsbgump · 05-20-2006, 09:15 PM

he he lol

67Fleet · 05-20-2006, 09:37 PM

I'm pretty sure there is something else also. They are NOT interchangeable.

gringoloco · 05-20-2006, 10:01 PM

So headlight buckets, and from what I can tell in pictures- the pass through holes for the parking lights. Anything else?

And what's the difference between the mounts for the two different core supports?

Thanks -Chris

Rokcrln · 05-20-2006, 10:38 PM

Well I went out to my storage bld and this is what I found. The main dif is the head light buckets. On 69 and up they just added the bucket that is not on the 67-68. Everything else is 100% the same from what I could tell. Height, width, thickness, mounting holes, fender mounts, everything is the same. Their are a few holes in the 69 up suport right behind the light buckets that may make it hard to just remove your bucket. It would tak alittle bit of modifying but not that much at all. It looks like you could cut off the front plate of the bucket and attach it to the 67-8 suport. I did not look but I was told the hood latch is also differt but I will head back out and try and find my 67 latch.

Kevin
LFD Inc.

Rokcrln · 05-20-2006, 10:53 PM

Yep the latches are in fact different. On the right is a 71 and laft is a 67. The 67 is lower in the front where it mounts to the grill. But the core suport is the same except for the added buckets on a 69 up. What you would need to do is remove the added light bucket from your 69-72 and cut off the "legs" that hold it out from the suport. Then you would need to weld this now flat plate to the suport. Although it would be better to take the plate and trace around the out side of it on to the suport and then cut along that line so when you weld in the plate it would be flush with the suport metal. If not the new mounting surface would be about 3/32" farther forward then stock would have been. May be one of these days in my spare time I will convert my 71 suport (its in bad shape and I have a clean replacement) to a 67-8 and do a write up for you all.

Kevin
LFD Inc.

smbrouss70 · 05-20-2006, 10:26 PM

Here's a pic that shows the differences. As far as mounting of the fenders and how it mounts to the frame they are the same. The differences are in the headlight buckets (as mentioned above) and the holes (also mentioned above) The difference in mounting on the frame is because of the different brackets on the frame between 67-68 and 69-72. I have heard the people that have made the swap you are talking about just used the 69-72 bushings.

gringoloco · 05-21-2006, 01:19 AM

Great info everyone. Thanks for the extra effort Rokcrln. -Chris

67Mach1 · 05-21-2006, 08:13 AM

Very informative, Does anyone know if the same is true for the GMC Core Supports? Do they interChange and if so what years?

Thomas

smbrouss70 · 05-21-2006, 08:53 AM

From what I understand all years (67-72) of the GMC supports are the 67-68 style with the double headlight buckets spot-welded on.

**Hart_Rod** · 05-21-2006, 10:13 AM

Rok,

Is that suburban hatch for sale?!

Rob

Rokcrln · 05-21-2006, 10:19 AM

Quote:

Originally Posted by Hart_Rod

Rok,

Is that suburban hatch for sale?!

Rob

Nope! As a mater of fact I will need a second one for one of m projects

And yes the 67-72 GMC suport is the same for all years and they are the 67-68 suport just with spot welded mounts like mentioned above.

Kevin
LFD Inc.

Ford Assassin · 06-09-2009, 06:39 PM

Any word on that write-up?

05-20-2006, 08:39 PM	#1
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Difference between 67-68 and 70-up core support Reason I ask is that I'm swapping my '70 over to a '67 front clip and was wondering if I could: 1) Modify my current core support to work or... 2) What body mounts do I need for a 67 support on a 70 frame? Thanks in advance guys -Chris __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

05-20-2006, 08:44 PM	#2
taylorde Just A Tool Hand Join Date: Jan 2006 Location: Lovington,New Mexico Posts: 70	Re: Difference between 67-68 and 70-up core support As far as I know they are the same.But not exactly sure! __________________ :hit:

05-20-2006, 09:02 PM	#3
jsbgump Gone Fishing Join Date: Aug 2005 Location: Fort Worth, Texas 76135 Posts: 12,361	Re: Difference between 67-68 and 70-up core support The headlight buckets that mount to the core support is what is differn't __________________ 68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop Frame of resto has been started 2022 Hyundai Tucson Limited 2019 Chevy Traverse Redline Edition Wifes Ride Build Thread http://67-72chevytrucks.com/vboard/s...=1#post3483616

05-20-2006, 09:04 PM	#4
mbgmike Registered User Join Date: Aug 2005 Location: Pasadena,Tx /Pto Pta DR Posts: 5,415	Re: Difference between 67-68 and 70-up core support You beat me to it.

05-20-2006, 09:15 PM	#5
jsbgump Gone Fishing Join Date: Aug 2005 Location: Fort Worth, Texas 76135 Posts: 12,361	Re: Difference between 67-68 and 70-up core support he he lol __________________ 68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop Frame of resto has been started 2022 Hyundai Tucson Limited 2019 Chevy Traverse Redline Edition Wifes Ride Build Thread http://67-72chevytrucks.com/vboard/s...=1#post3483616

05-20-2006, 09:37 PM	#6
67Fleet Outlandish Trends - FL Join Date: Jul 2005 Location: Orlando Posts: 1,396	Re: Difference between 67-68 and 70-up core support I'm pretty sure there is something else also. They are NOT interchangeable. __________________ -Bret 67 short-fleet sold!

05-20-2006, 10:01 PM	#7
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: Difference between 67-68 and 70-up core support So headlight buckets, and from what I can tell in pictures- the pass through holes for the parking lights. Anything else? And what's the difference between the mounts for the two different core supports? Thanks -Chris __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

05-20-2006, 10:38 PM	#8
Rokcrln Senior Member Join Date: Jul 2005 Location: Winters Ca. 95694 Posts: 4,843	Re: Difference between 67-68 and 70-up core support Well I went out to my storage bld and this is what I found. The main dif is the head light buckets. On 69 and up they just added the bucket that is not on the 67-68. Everything else is 100% the same from what I could tell. Height, width, thickness, mounting holes, fender mounts, everything is the same. Their are a few holes in the 69 up suport right behind the light buckets that may make it hard to just remove your bucket. It would tak alittle bit of modifying but not that much at all. It looks like you could cut off the front plate of the bucket and attach it to the 67-8 suport. I did not look but I was told the hood latch is also differt but I will head back out and try and find my 67 latch. Kevin LFD Inc. Attached Images

05-20-2006, 10:53 PM	#9
Rokcrln Senior Member Join Date: Jul 2005 Location: Winters Ca. 95694 Posts: 4,843	Re: Difference between 67-68 and 70-up core support Yep the latches are in fact different. On the right is a 71 and laft is a 67. The 67 is lower in the front where it mounts to the grill. But the core suport is the same except for the added buckets on a 69 up. What you would need to do is remove the added light bucket from your 69-72 and cut off the "legs" that hold it out from the suport. Then you would need to weld this now flat plate to the suport. Although it would be better to take the plate and trace around the out side of it on to the suport and then cut along that line so when you weld in the plate it would be flush with the suport metal. If not the new mounting surface would be about 3/32" farther forward then stock would have been. May be one of these days in my spare time I will convert my 71 suport (its in bad shape and I have a clean replacement) to a 67-8 and do a write up for you all. Kevin LFD Inc. Attached Images

05-20-2006, 10:26 PM	#10
smbrouss70 Registered User Join Date: Sep 2003 Location: Rayne, LA Posts: 2,781	Re: Difference between 67-68 and 70-up core support Here's a pic that shows the differences. As far as mounting of the fenders and how it mounts to the frame they are the same. The differences are in the headlight buckets (as mentioned above) and the holes (also mentioned above) The difference in mounting on the frame is because of the different brackets on the frame between 67-68 and 69-72. I have heard the people that have made the swap you are talking about just used the 69-72 bushings. Attached Images __________________ Steven "If dogs don't go to heaven, when I die I want to go wherever they went." -- Will Rogers R.I.P. Oscar R.I.P. Ratchet 1967 Pontiac GTO - Dad was the Original Owner 1970 Chevy 2wd SWB "Oscar's Truck" 1970 Chevy 2wd Blazer "Ratchet's Blazer" 2013 Chevy 2500HD Crew Cab Duramax/Allison Z71 LTZ "Brown Sugar" 2017 Chevy Suburban "BDB" 2020 Chevy Blazer Premier "Foxy" Member of Louisiana Classic Truck Club (LCTC) Shop Build

05-21-2006, 01:19 AM	#11
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: Difference between 67-68 and 70-up core support Great info everyone. Thanks for the extra effort Rokcrln. -Chris __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

05-21-2006, 08:13 AM	#12
67Mach1 Senior Member Join Date: Nov 2005 Location: Round Rock, TX Posts: 1,100	Re: Difference between 67-68 and 70-up core support Very informative, Does anyone know if the same is true for the GMC Core Supports? Do they interChange and if so what years? Thomas __________________ Soon to be selling all but one, or two... Depends on what the Boss has to say....... 67 GMC Shortbed 454 Project more junk and most of it is for sale

05-21-2006, 08:53 AM	#13
smbrouss70 Registered User Join Date: Sep 2003 Location: Rayne, LA Posts: 2,781	Re: Difference between 67-68 and 70-up core support From what I understand all years (67-72) of the GMC supports are the 67-68 style with the double headlight buckets spot-welded on. __________________ Steven "If dogs don't go to heaven, when I die I want to go wherever they went." -- Will Rogers R.I.P. Oscar R.I.P. Ratchet 1967 Pontiac GTO - Dad was the Original Owner 1970 Chevy 2wd SWB "Oscar's Truck" 1970 Chevy 2wd Blazer "Ratchet's Blazer" 2013 Chevy 2500HD Crew Cab Duramax/Allison Z71 LTZ "Brown Sugar" 2017 Chevy Suburban "BDB" 2020 Chevy Blazer Premier "Foxy" Member of Louisiana Classic Truck Club (LCTC) Shop Build

05-21-2006, 10:13 AM	#14
Hart_Rod ************* Join Date: Apr 2005 Location: Pensacola, FL Posts: 17,858	Re: Difference between 67-68 and 70-up core support Rok, Is that suburban hatch for sale?! Rob __________________ Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3

06-09-2009, 06:39 PM	#16
Ford Assassin Registered User Join Date: Jun 2008 Location: Jackson, Ca. Posts: 674	Re: Difference between 67-68 and 70-up core support Any word on that write-up? __________________ Cable -K5 Blazer 2wd: 6.0 LQ4, 7875 Turbo, Tick Stage II Turbo Cam, Built 4L80e, RevMax Billet 3600, 9.5" 14 Bolt -Chevy 3+3 Crew Cab Dually: Cummins 12v P-Pump Swap, Compound Turbos, A2W Intercooler, NV4500HD, 4wd conversion, Radius Arms, Coilovers, Crossover Steering, etc Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=803608



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