I would just replace the hitch head and the trunnions bar ends. Check out Etrailer for the best prices.
I would buy a standard Eaz-lift replacement hitch for around 200$ online. Moving to a round bar hitch may cause your ride to improve as well. Check PPL Motorhomes for this.
Also, ya need to grease the contact points for future reference. I just use heavy grease.
I prefer the standard weight distribution hitch over the Equal-I-zer and the Dual-Cam because of parts availability (any mom and pop RV store in anywhere USA or Canada will have parts for a standard WD hitch if something happens on the road.
If you want to upgrade the hitch then go for the Blue Ox Sway pro for about $550.00 or go for the big daddy Hensley Arrow.
Thanks!
Jeremiah