Well after sucking muddy water into cvt exhaust. Trans wont shift when engine is running. So I followed LBR old post tore cvt apart and primary 3 of the arms were stuck and the spring cup that butts up to one way was stuck in the outer sheave. Now that its all cleaned up where is a good place to get a new bolt for the primary. I see on the parts fiche its a 12mmx135mm could you just get a grade 8 bolt or should I just get the airdam hardened bolt.