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05-29-2012, 03:02 AM
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#1 |
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Registered User
Join Date: Jun 2010
Location: Wallingford,Ky
Posts: 22
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Whats breaking my rad support?
I have a 71 C-30 that the rad support keeps breaking on. It breaks on all 4 corners of the opening for the radiator. Its not been in any major wrecks that I know of( not in the last 22 yrs at least),no noticable vibrations, rides and drives great. Has anyone seen or heard of a truck doing this? This will be the third rad support for this truck plus several weld jobs. Any ideas or suggestions will be appreciated.
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05-29-2012, 06:57 AM
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#2 |
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Collector of Projects
Join Date: Apr 2003
Location: Las Vegas
Posts: 3,106
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Re: Whats breaking my rad support?
What condition are the body (and radiator support) mounts in? Also, are you sure you have the correct ones? The C30 uses different mounts then the C10 and C20.
You can try jacking up one corner of the frame and see what and where it flexes.... |
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06-01-2012, 09:34 AM
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#3 |
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Registered User
Join Date: Jun 2010
Location: Wallingford,Ky
Posts: 22
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Re: Whats breaking my rad support?
rad support mounts were in good shape, cab mounts not as good. Got new ones ordered for both.
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06-01-2012, 09:53 AM
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#4 |
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Registered User
Join Date: Jun 2011
Location: Central OR
Posts: 684
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Re: Whats breaking my rad support?
My 71 C30 has the same symptoms.
__________________
1955 GMC 250 8 Flatbed 1971 C30 157" 350 4spd 10' Flatbed 81 GMC K30 CnC 9' Flatbed 454 T400 89 GMC Jimmy Stock https://67-72chevytrucks.com/vboard/...d.php?t=810958 71 LT1 Convertible, 72 Coupe 69 CJ5, 75 CJ6, 67 M715, 72 M35A2 Bobbed, 95 XLC2 |
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06-01-2012, 02:23 PM
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#5 |
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Registered User
Join Date: May 2010
Location: Edmonton, Alberta
Posts: 3,847
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Re: Whats breaking my rad support?
I pulled my rad saddle out of a 68' c30 and it is also cracked in the corners of the rad opening.
Posted via Mobile Device
__________________
--------------------------------------------------------------- Jason. 68’ GMC shortbox https://67-72chevytrucks.com/vboard/...d.php?t=794201 72' 2WD Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=425385 67' LongBox C-10 http://67-72chevytrucks.com/vboard/s...d.php?t=691845 InstaGram ybnorml67 |
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