I have a trailer i believe if i put a bit of work into it,it may be good to use.Here is my biggest issue.The wheel bolts and nuts are rusted good.What is the best if there is any kind of chemical to put on rusty nuts and bolts to loosen the wheels on the trailer.There on there i mean good.I have a flat tire on one and a rotted tire on the other.I just want to get the whole tire and rim off and put 2 new rims and tires on.Another is the springs,are they rather easy to take off and put on or is there a special way to take them off and put new ones on.The bunks i can do.The jack on the trailer is toast to,rusted to all heck but they have them at walmart for $33.Any help on this would be great,thanks.