Squeeling V belt and CVF alternator

A belt tension tool for V belts.
And there used to be 3 different automotive series of belts. 13,15 and 17 or 5,7 and 9. Skinny belts 13 or 5 series fit lower in the groove. I used to regularly throw belts back in my nitrous days. A skinny belt did the trick. Maybe a different series would help?

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