Vetter Fairings used two kinds of windshield vents:
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The straight style was used until 1979 when, after I sold the company, the angle style was used which used a 1/16" smaller hole.

Virtually all aftermarket windshield makers drill 3 1/4" holes - for the straight style vent. If you are replacing "Angle style" vents, my suggestion is to buy a 3" sanding for your drill - about a $5.00 purchase - and enlarge the holes 1/16" to make the straight vents work. It is not hard to do.

Another method is to find a drinking glass with a little taper, the right diameter. Wrap it with sand paper and enlarge the hole by twirling the glass, sanding away until the new vent fits. This, by the way, is a very good method to finish enlarging the hole as it makes it perfectly round.


This page updated Jan 30, 2009
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