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Old 06-20-2010, 08:47 AM   #1
68longhorn
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Radiator leaking

I need to replace the radiator in my 86 with a 305/700r4 and A/C. Should I go stock, aluminum or what? What do you use and how well does it work?
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Old 06-20-2010, 10:42 AM   #2
kelsfine69
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Re: Radiator leaking

I just bought one from NAPA, It has plastic tanks and aluminum center. I think that how they all are now. I have no problems with it. Fit just like a replacement.
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Old 06-20-2010, 12:05 PM   #3
old Rusty C10
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Re: Radiator leaking

when mu friend borrowed my truck the radiator blew out and he had to put in a different radiator they needed some different mounts for it but it does work fine... the thing used mounts oit of the 88 up truck
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Old 06-20-2010, 01:21 PM   #4
Slofarmtruck
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Re: Radiator leaking

I just had to do this on my same combination truck. I picked up a used radiator out of a similar year suburban that is working perfect and fit with no modifications. Swap took about 30 minutes which is yet another reason why I love these trucks!
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Old 06-21-2010, 11:43 AM   #5
68longhorn
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Re: Radiator leaking

Anyone run a performace all aluminun rad. in a square?
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Old 06-21-2010, 08:33 PM   #6
tucsonjwt
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Re: Radiator leaking

I replaced a few radiators on the squares I have owned. I bought the last one online and that website directed me to a local store for a good price. It was a thick 3 core, not a 4 core, for my 454 with A/C, but it was the same model as the one I was replacing. It was traditional brass top and copper core. It works fine out here in the desert heat. The brand was Ready Rad. I got like $40 scrap for the old radiator, and paid about $140 for the new one. I think you can get one even cheaper if you shop around. I would not go aluminum or plastic - the last aluminum I had was in my 63 split window Cprvette 44 years ago - and it leaked at the fittings.
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Old 06-21-2010, 08:44 PM   #7
gchemist
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Re: Radiator leaking

I run a 454 aluminum radiator in my truck. Big sucker!! Works great!!

www.radiator.com
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