1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

1983 manifold to downpipe stud sizing

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Old Nov 13, 2008 | 08:14 PM
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1983 manifold to downpipe stud sizing

I need to know the thread pitch, diameter of the stud, and overall length of the stud as i stripped the threads on mine after installing new gaskets. I searched but couldn't find a definitive answer. The stud is into the end of the manifold, where the down pipe attaches, leading to the first precat. I've included a picture so there isn't any confusion. Sorry if this is a repost, like I said I searched a good lick and came up dry. thanks!

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Old Nov 13, 2008 | 09:09 PM
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the thread pitch is M10X1.5. overall length is about 1 7/8" give or take. i get replacements from napa and they have worked perfectly fine.
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Old Nov 14, 2008 | 01:33 AM
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http://www.mazdatrix.com/getprice.as...m=10-1050-0839
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Old Nov 15, 2008 | 05:38 PM
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awesome, just what i needed- thanks to both of ya. Jeff, I saw the mazdatrix stud, but don't want to pay the shipping (cheap ***). Thanks again!
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