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- - 55-57 rad support bolts? (https://67-72chevytrucks.com/vboard/showthread.php?t=468891)

samdjr74

06-10-2011 10:36 AM

55-57 rad support bolts?

Hi All,

I'm trying to figure out what size bolt is used to hold the rad support to the frame of my 56 3100. I've tried a few different bolts, nothing seems to work and my shop manual just references a part number which I can't find anything on it in google.

Thanks,
Sam

OrrieG

06-10-2011 11:58 AM

Re: 55-57 rad support bolts?

working from memory I think it is a fine thread bolt 3/8" or 7/16" bolt size.

samdjr74

06-10-2011 12:30 PM

Re: 55-57 rad support bolts?

Thanks, I'll give them a try. The nuts are so gunked up with paint and rust I need to run a tap through them but I want to make sure I use the right size.

mdstitt

06-10-2011 09:29 PM

Re: 55-57 rad support bolts?

Fine thread 7/16 is correct. Not sure on the length.

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