Did you replace the gasket or just reuse the existing one? I pulled the the cover over the gas tank area and exposed the sending unit this weekend but did not pull it out because I did not have a new gasket. May go do it this afternoon. I figure that if I do not mess up the existing one then I should be ok to reuse it. Also, what kind of wrench did you use - that looks like one big mutha nut on there.