You can order the bearing buddies from trailex or at any trailer supply store. I think I even saw them at Wal-Mart and Target.

You can buy (or make) cradles to spread the laod out on your hulls if you are worried about it. It is nice, though, to have the rollers when you are loading and unloading your boat on a shallow ramp.

Check out the trailex website for all the details. I think someone posted it earlier.