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Old 04-06-2018, 07:47 AM
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Andre Andre is offline
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Join Date: Dec 1999
Location: Hobe Sound (Tiger Land), Fl
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Default thermostat housing front stud

On the 67 GTO and other years, there is a stud that secures the housing to the 4bbl intake. Then the rear alternator bracket is attached to it. (power steering cars) Is it just a regular nut that holds the bracket in place, or is it a castle nut. Or castle nut and washer.
I know this is "Bill Ryder" type of question, but my memory fails me, and I dont see any references to it in manuals etc.
I'm assuming if it is a castle nut, then used is my only option?

 


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