If you happen to have tracks other than C or Double L track, it is possible your trailer manufacturer installed a non-standard track. Some manufacturers like East Manufacturing, Wilson Trailer Company and Utility Trailers occasionally use other types of rails. In this case, you have 2 options: The easiest and fastest way to solve that matter would be to swap out your winch tracks for a C or Double L type. All trailer manufacturers offer these tracks as they are the standard in the industry. Below are some examples of these non-standard winches that exist in the market. If you have a substantial number of trailers with these custom tracks already installed, we can look into producing a custom batch for your application. If this sounds like a better solution, contact us directly at info@boawinch.com and we will be happy to help.