Knowledge, I am seeking,<br /> I have a 1988 Wellcraft 2800 Monte Carlo with twin 305 Mercurys and Alpha Ones (1.50 ratio). I have around 650 hours on them but the outdrives are salted and I would like to replace when I put in some 350's I have waiting to go in. I have seen some aftermarket outdrives with a 15 month warranty for @ $1600 each and that sounds better than $4500 each. Does anyone have some history on these aftermarket outdrives or a better source? I can not afford my Merc Dealer! I appreciate any help.