MikeZcar Posted April 1, 2006 Share #1 Posted April 1, 2006 Think I will replace all the under hood, heat and a/c vacuum line(hose/tubing) on the 78, anyone know what size in mm is needed? Thanks, Mike Link to comment https://www.classiczcars.com/topic/19467-78-z-what-size-vacuum-line/ Share on other sites More sharing options...
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