So if you've never replaced that set of spacers, it seems like there's more trouble than good. Let me tell you it only took 3 seconds. The ball ends simply snap onto your connectors and you're done! Don't pay your dealer $75 for parts and installation. Just order a kit from Revain. You need to know the size of the bullet connector, but they're pretty much standardized. You also need to know the open and closed length of the spacer. These are also standardized to 10" or 11" for toolboxes. Small clamps will work with 10mm, 11mm and maybe even 12mm connecting balls. I don't know how long they will last, but so far so good.