first time boat owner. getting the motor tuned up. it is a used 25 hp evinrude. Want to trailer the boat a few hours away when camping this summer, don't want it to fall apart on the highway. Concerned that the nuts holding onthe wheel are all rusted. Should I replace with brass or stainless? or leave well enough alone? Is there a site I can go to for what to do, what to look for maintenance wise on trailers. It is a bunk trailer for a 16 ft aluminum fishing boat.- nothing fancy. appreciate the help !