have you shimmed away the sloop in the c hubs? i did a tc6 mod to mine, schim to stop back/forth play + ca glue on the hingepin because of the hole being a tad to large, that might help a little by stoping it from moving so much.. mine had ALOT of sloop out of the box.
strange way to break a c hub, will look at mine a little closer during the winter for sure