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Unread 07-22-2012, 04:24 PM   #1
JBW5
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1980 CJ7 
 
Join Date: Apr 2012
Location: Royal, Arkansas
Posts: 171
258 manifold vacuum plug size

Anyone know the size of the plugs that are In the 258 exhaust manifold?

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Unread 07-23-2012, 09:56 AM   #2
1986cj
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1986 CJ7 
 
Join Date: Dec 2007
Location: Denver Colorado
Posts: 1,867
Are you talking about the air injection rail? 1/4" pipe tread. Take one of the hollow bolts to the hardware store and compare. Easer to find in brass in the plumbing section.
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