Found a second Bravo Drive but not sure of the ratio. The I.D. number on the drive is OC793359. I cant seem to find a direct match to the ID, the info I saw seems it could be a 1.36 or a 1.5

Any help would be great

Thanks in Advance

Your serial number 0C793359 actually comes up as and registered as a 1989 transom assembly not the stern drive.

Using the T/A # above a Drive Serial Number (0C794862) came with the boat when registered new was a 1989 BI-ROTATION Model number 5120150BS MERCRUISER BRAVO 1 1.50:1.

http://www.mercurypartsexpress.com/u...html#epc::home

the only thing i can find on mine is 5626213150R and not sure which series outdrive it is, can anyone point me in the right direction?