Superior design has made the CMC Jack Plate the#1 selling Power-lift in the world! CMC Marine has been manufacturing highest quality of transom jack plates than most of the competitors have been in business. No short cuts are taken at CMC. Computer aided design and precision machining of the jack plate is done at the facility to get the best quality of transom jack at a very competitive price. The jack plate utilizes a totally waterproof 12 volt DC marine hydraulic system that is rated over 7800 pounds of thrust. More lifting capacity than any other jack plate in the market. It is 40% more powerful and much more dependable than electro-mechanical transom jacks on the market. The boat motor bracket moves up and down on a transom bracket by use of rollers Machined from aluminum-bronze alloy. These rollers are highly impact resistant, Corrosive resistant, and have a high load carrying capacity. Thrust is eliminated by the stainless steel pin through this roller with a self lubricating non-metallic material (G.S.M. Nylatron) used for thrust guides on either side of the rollers. This feature eliminates any vibration or "shimmy" due to load applied from high powered outboards. This patented design virtually eliminates any chance of binding, which is common with other transom jack.