Hi all...I have a 1990 bayliner with an alpha 1 gen 1......the lower 2 transom bolts are causing some confusion to me. they have black plastic caps on the outside and from the research I've been doing it seems as though they "should" have 2 aluminum anode caps. I dont trust anything the previous owner has done and so I'm confused as to what "should" be on it.. Can anyone shed light on this?