08-09-2020, 08:02 PM | #1 |
Registered User
Join Date: Nov 2016
Location: Vancouver BC
Posts: 162
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Radiator sizes??
I am working an a Jimmy but I think this applies to four wheel drive trucks as well. My Jimmy came with a radiator but it sits slightly above the rad support and doesn't fit the bottom support channels very well. It has some funky spaces on the upper retainers to make up for that.
Looking at parts books online I believe a 1972 Jimmy w/o A/C and a 350 and automatic came with a two row rad with the transmission cooler. A/C trucks came with three and four r? Or do I have a radiator out a newer truck because it sure doesn't fit. |
08-09-2020, 08:53 PM | #2 |
Registered User
Join Date: Jul 2012
Location: Whitehorse yukon
Posts: 1,218
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Re: Radiator sizes??
Which rad do you have ?
2 core and 4 core have different rad support holders and rubber grommets |
08-09-2020, 09:24 PM | #3 |
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Location: Vancouver BC
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Re: Radiator sizes??
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08-09-2020, 09:33 PM | #4 |
Senior Member
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,932
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Re: Radiator sizes??
The 4 core takes a wider seat. It won't fit into the 2 core holder, so that might be why yours sits high.
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08-09-2020, 09:47 PM | #5 |
Carpe manana
Join Date: Dec 2010
Location: Eau Claire, WI
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Re: Radiator sizes??
Ill fitting aftermarket replacement maybe?
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08-09-2020, 09:47 PM | #6 |
laying low
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,317
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Re: Radiator sizes??
There have been numerous threads about this. I have a 4 row rad in mine and with the proper mounts and cushions it stood up too high still. I, and others, cut the back side of the upper and lower cushions to half thickness to lower the rad. Some made spacers to place under the top rad retainers. I thought mine due to being an aftermarket radiator for the ill fit.
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08-09-2020, 10:43 PM | #7 |
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Join Date: Nov 2016
Location: Vancouver BC
Posts: 162
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Re: Radiator sizes??
Thanks. Does anyone repop the lower brackets? I think using a 4 core is better but I hate it sitting up. Pulled my gas tank tonight and two holes. So that's next on the list.
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08-09-2020, 11:46 PM | #8 |
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Join Date: Jul 2012
Location: Whitehorse yukon
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Re: Radiator sizes??
Gmc pauls lmc or brother's should have them
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08-10-2020, 12:43 AM | #9 |
The Older Generation
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,538
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Re: Radiator sizes??
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If your truck originally had the 2 or 3" core radiator and you are installing a 4" core with 4" core lower saddle brackets, the lip on the back of the core support will have to be bent down so that the bracket will sit down flat on the core support. If that wasn't done it will make the 4" saddle sit higher in the back. LockDoc
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08-18-2020, 03:12 PM | #10 |
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Join Date: Jul 2012
Location: Whitehorse yukon
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Re: Radiator sizes??
Nappa should be able to help RADIATOR RETAINER SET 4-ROW # GMK4143326671S
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