Here is a basic question-any hitch recommendations? I have a '95 f150, 302 auto, shortbed. I will be towing a 6x12 enclosed trailer with a couple street bikes in it, so it doesn't need to be real heavy-duty. I'm guessing a Class III or IV. I noticed some hitch state that the spare tire may need to be modified. Any idea what this means, or if there are hitches which don't require any changes to the spare tire?

Finally, where is the best deal?