Eliminate trailer shock with a m-y wedge motor support. This innovative outboard motor accessory forms a stable, cushioned platform that makes it safe and easy to trailer your boat. It provides unparalleled support and convenience, solving your outboard motor trailering problems for good. The technology behind the m-y wedge is fiendishly simple. Constructed from EPDM rubber and high-tech plastic, it simply fits over the outboard's trim/tilt piston. When the motor meets the rubber as it's tilted down, it self-centers to form a cushioned stable platform that seals on both ends for safe, dependable trailering at the correct height and eliminates “trailer shock.” Works on: Mercury outboards 135 hp–300 hp. Yamaha (plus new SHO) outboards 115 hp–350 hp. Honda outboards 90 hp–300 hp. Evinrude outboards 150 hp–300 hp (if you drill the hole in the m-y wedge bigger) , except Generation 2. Johnson four-stroke outboards 150 hp–300 hp, V6 4-stroke. Suzuki four-stroke outboards DF140 to DF350 hp. If the motor has a trim limit set, the motor wont trim high enough to accomadate the m-y wedge. Three ram systems only, like the one in the second picture. for some reason, some people do not understand that and try to return them.