I am looking in the Clymers Manual for my boat (1979 SeaRay w/260 Merc and Alpha One), and I come across something I have a question about. I understand that I need to check the lower unit lube, engine oil, powersteer fluid, and power trim fluid, but the manual also says to check the transmission fluid. What are they talking about? If so, where is the transmission fluid check and fill point?<br /><br />Thanks for your help!