Hello, I have a 1970 40HP Johnson (40EL70A) and would like to know if anyone had any idea where I could find replacements for the lower front & rear cowling seals? The part numbers in my motor's manual are #313178 (lower rear cover seal) and #313177 (lower front cover seal). Any type of suggestion or idea on what to use if I can't get the appropiate seals would be appreciated. Thank You Jake362 