ok so here is the scoop, i have a mercruiser gm inline 6, and a mercruiser outdrive. (paired from an other boat, but pulled because of hull damage) that i have put on my chaparral, that i had found for a killer deal, i have the motor hooked up for the most part, but i have to replace the bellows inside the outdrive because they are all ripped up. the problem i found is the serial numbers dont match charts i have found online. serial number#1547-2411a14. ill try to uplaod a picture, and maybe some one can help me out please!!!! oh and i have read if it had an eye loop hook on the ( this mine dose) then it could be a mercruiser I?