I need a hub kit for an OMC (Evinrude, Johnson) prop # 775713. All I can find are hub kits for 3rd party suppliers. Do I have to use an OMC part or will any of the 3rd party hub kits fit? If it must be an OMC part where can I find the part number or part. The engine is a 1991 Evinrude 40 HP...