Hello. I purchased an old boat and partial restore . It is a 1970s 15 ft terry 460 cm. The engine on it is a 1977 75hp evinrude. Now the tilt trim motor is shot I think. I am not knowledgable about tilt trims. Best I can discover the tilt assembly matches that motor. It's a double arm type. Not a single as I've seen. My question is do I need a specific assembly for this motor ? Or will any tilt trim system be suited.? Can the hydraulic motor be replaced and if so with what kind? See I'm really ignorant on this subject. I'll try and answer any other info I can.