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V-Belt Sizing

VFilms

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Nov 12, 2014
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Location
Saratoga NY
I'm trying to fit a new PS pump belt on my 318 Poly. Gates shows it as a 9390 which is 39 3/8" but it is a bit too small, maybe 3/4 to 1". The next Gates size up is 2" longer and I can't seem to find a 40" belt. I know there are not a lot of Poly builders here but any suggestion will help.
Thanks

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In my experience, most belts are made in 1 inch increments.
 
Thanks, I appreciate all the comments. I found a Dayco 17400 that fits fine. This is an AC car and there is a pulley bracket for the AC belt that changes the PS pump adjustment slightly. I'm guessing this is why the 9390 belt was too small. Thanks again.
 
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