69 GMC C20 Core support repair or replace - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MYOUNG · 02-19-2018, 05:53 PM

My current core support is rusted out on both sides as the truck came with dual batteries. The main mounting points are pretty bad also but the top 2/3 of the core support is in good condition. My question is basically is it better to get a cheaper Chevy core support and cut the bottom off and weld it to my current one or should I drop the extra cash and get the GMC specific one from GMC Pauls and just swap it out.

I have heard that the reproduction ones dont fit as well but I dont know where specifically the issues with the fit are.

Since the bottom of the core support is the same I think it could work but it might not be worth the work if the reproduction one is a good fit.

Has anyone here welded 2 core supports together to make one good one?? I was thinking I could cut it right at the bottom of the opening for the radiator to make the cuts shorter??

B. W. · 02-19-2018, 06:13 PM

I did a lot of work to my core support, in hind sight I should have sourced another one. IMO, I'd look for a good used one.

Problems · 02-19-2018, 07:30 PM

I was going to list this one here anyway. Just haven’t gotten around to it.

https://milwaukee.craigslist.org/pts...501794501.html

**Jason Banks** · 02-19-2018, 08:02 PM

Can't you buy a chevy one and move the headlight buckets from the old to the new? I thought someone mentioned that one time.

Today I was looking at the one I took out of my truck and replaced with an aftermarket. I still believe it was a good decision to replace instead of repair. Only one side was rusted, but the whole bottom was rusty and would need some patching.

MYOUNG · 02-19-2018, 09:19 PM

@Jason. I think you are correct in that you can transfer the headlight buckets. I was trying to avoid shipping a repop GMC one as they are over 100 in shipping. think I can get a Chevy one within driving distance...

@Problems. Thanks for the offer. If I was closer to you I just might go for that. By the time it gets over to my neighborhood it will be 300$.

So then it's a question of Transfer the headlight buckets or swap the bottom. ??

**Boog** · 02-19-2018, 09:54 PM

Brothers Trucks is in Corona. Is that close enough to drive over and pickup a new one and save shipping? Their's are $269 I think.

NorCalC20LWB · 02-19-2018, 10:57 PM

I have one off my 72 C20, we’re pretty close. PM me if your interested.

02-19-2018, 05:53 PM	#1
MYOUNG Registered User Join Date: Jul 2016 Location: antioch CA Posts: 29	69 GMC C20 Core support repair or replace My current core support is rusted out on both sides as the truck came with dual batteries. The main mounting points are pretty bad also but the top 2/3 of the core support is in good condition. My question is basically is it better to get a cheaper Chevy core support and cut the bottom off and weld it to my current one or should I drop the extra cash and get the GMC specific one from GMC Pauls and just swap it out. I have heard that the reproduction ones dont fit as well but I dont know where specifically the issues with the fit are. Since the bottom of the core support is the same I think it could work but it might not be worth the work if the reproduction one is a good fit. Has anyone here welded 2 core supports together to make one good one?? I was thinking I could cut it right at the bottom of the opening for the radiator to make the cuts shorter??

02-19-2018, 06:13 PM	#2
B. W. Registered User Join Date: Nov 2014 Location: Bigfork, Montana Posts: 1,137	Re: 69 GMC C20 Core support repair or replace I did a lot of work to my core support, in hind sight I should have sourced another one. IMO, I'd look for a good used one.

02-19-2018, 07:30 PM	#3
Problems Registered User Join Date: Feb 2018 Location: Waterford, Wi Posts: 73	Re: 69 GMC C20 Core support repair or replace I was going to list this one here anyway. Just haven’t gotten around to it. https://milwaukee.craigslist.org/pts...501794501.html

02-19-2018, 08:02 PM	#4
Jason Banks Senior Member Join Date: Dec 1999 Location: TX Posts: 1,624	Re: 69 GMC C20 Core support repair or replace Can't you buy a chevy one and move the headlight buckets from the old to the new? I thought someone mentioned that one time. Today I was looking at the one I took out of my truck and replaced with an aftermarket. I still believe it was a good decision to replace instead of repair. Only one side was rusted, but the whole bottom was rusty and would need some patching.

02-19-2018, 09:19 PM	#5
MYOUNG Registered User Join Date: Jul 2016 Location: antioch CA Posts: 29	Re: 69 GMC C20 Core support repair or replace @Jason. I think you are correct in that you can transfer the headlight buckets. I was trying to avoid shipping a repop GMC one as they are over 100 in shipping. think I can get a Chevy one within driving distance... @Problems. Thanks for the offer. If I was closer to you I just might go for that. By the time it gets over to my neighborhood it will be 300$. So then it's a question of Transfer the headlight buckets or swap the bottom. ??

02-19-2018, 09:54 PM	#6
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,534	Re: 69 GMC C20 Core support repair or replace Brothers Trucks is in Corona. Is that close enough to drive over and pickup a new one and save shipping? Their's are $269 I think. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

02-19-2018, 10:57 PM	#7
NorCalC20LWB Registered User Join Date: Mar 2015 Location: Bigfork, MT Posts: 466	Re: 69 GMC C20 Core support repair or replace I have one off my 72 C20, we’re pretty close. PM me if your interested.



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