Hey guys I have the lower units to a Mercury 200 20hp. One is a 1965 and a 1975. They both should be able to fit a mercury within several years of their date.these units are in great condition the skegs are in good condition too. The impellar in the 1965 one needs to be replaced, and I don't know if the impellar needs to be replaced in the 1975 one, but I am pretty sure it doesn't. I am selling them with the props they both turn nicely and shift easily. I am selling them with their props. I would like to get around $220 for each of them. I have one listed on E-bay right now. you can check it out at http://cgi.ebay.com/ebaymotors/ws/e...viewitem=&item=270264993663&_trksid=p3907.m32 I am not goint to list the other lower unit just yet I want to see if anyone is intrested first. So If you are please send me a PM. THX.