Hello all, I am new here, I have been trolling the boards for some time lurking, learning, reading countless threads and such in order to educate myself to know what I have gotten myself into. Typical story here, purchased a used 85 Wellcraft Elite 180 off CL. The seller was a motivated seller and took my low ball offer. Long story short, it has issues, rot is the biggest issue. I have since gutted the deck down to the stringers, also rotted. Before I truly dig myself into the land where I am uncertain, I'd like to identify what drivetrain I have. I have read and searched but nothing really tells me what I am asking. The engine is a Mercruiser 170 4 cyl engine, (I assume a 2.5L??), my real question is, what is the drive upper and lower? It says Mercruiser and has this number as DRIVE UNIT A311895 and on the transom plate says A353089. I have pictures on my phone but it is not compatible in a mobile version to upload. Any help will be appreciated here to guide me, then all the fun can begin.