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Old 05-29-2013, 11:15 PM   #2
da-burb
"Ochre Ogre"
 
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Join Date: Apr 2000
Location: Springfield, MN
Posts: 3,558
Re: cutting holes for factory AC vents

this should get you part of the way there.
3/8" from door pinch welds.
1/2" up from bottom curve of dash
3 1/2" diam circle + a bump out, you will likely need a tracing of the opening to get it or keep cutting until you get it right.
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