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  1. Endi

    Merc Racing JRSC auto tensioner belt

    Hi guys, I have currently have a JRSC set up with the merc racing OEM auto tensioner bracket. I have a belt that is fine on load but i think it is too long as the tensioner is topping out when at idle. Rattling the tensioner when pulling away. I believe SC pulley size is 3.6 inch. The rest...
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