Unfortunately, they do not make a rebuild kit for the Aventa LX. They do, however, make a model that replaces this one. It would be the Blue Ox BX7420 Avail Towbar
. We also work with Blue Ox on a tow bar trade in where you could receive a rebate by purchasing a new tow bar and sending your old tow bar into Blue Ox. You can read more information on the trade in about half way down the page on the BX7420, under Additional Product information.