I think Mark is correct about a recall and if I remember correctly it was for the wiring and stuff. You should look into that and maybe save yourself some money. As for the WP I think you can get them at UAP but it was my understanding that WP's don't slowly go bad, they either work or they don't. I would look into the wiring thing before doing anything else. Why fix something that isn't broke but thats just me and what do I know.
