I am thinking of buying a used boat,1987 Imp 22ft,i/o,according to the owner it has a 305 v-8 GM engine.The boat has lost its steering and I have never seen this type of cable steering.The steering cable is about 3/16th.in diameter and runs back to a pully at the rear of the engine and turns a shaft in the outdrive.From my discription does anyone know what type of steering this is.The owner doesn,t know,he told me it was a Mercruiser,the shifter says OMC and the gas filter says OMC.The transom has a large hole with a rubber boot unlike a Merc.I do not want to buy something that is a big problem.Thanks