My trailer for my 185 searay corroded and it would cost to much to fix. I had a friend give me a trailer and I am not sure about what I need to be looking at to make sure it will work. My boat is 18 1/2' and the new trailer is a capri for a 20' bayliner. The bunkers are about spaced the same but the front of the boat is going to have to come up a lot to fit snug on there. I am replacing the bunkers and doing some grinding and painting on the trailer before I put my boat on. I can't do any measurements until I get my boat off my old trailer. What should I be measuring? The new trailer bunkers are designed to move and are not set at a certain angle like my old trailer but it looks like this shouldn't be a problem. Anyways, never done this and wanted some advice as to what to measure and any other things i need to be thinking about.

