Im new to this site I have been reading the forms here for several months now. I just got a 14 foot v bottom john boat with a 1967 johnson 20 hp motor . I want to replace the gasket for the gear case. Why ,the boat has sat for 3 years outside. Now I have it but I have not been able to find the gasket needed. If i buy a roll of gasket material what does it need to be, cork, fiber, compressed. I dont know and would like some help . :?: