BTW the easiest way to tell if they are UD is if the crank pully is smaller than the WP.
If the WP is UD it is actually larger than the stock WP pully. So either way the UD crank pully will be smaller.
BTW if they are all UD pullies(not miss-matched) The stock belt should fit. Alot of them are designed this way so you don't need to buy a new belt.
Good luck. If you have the right belt U just remember the size. But I take it your just curious.
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