It is AMAZING what a good set of shocks can do for any suspension. If you have the aluminum body rebuilable fx's, just have them rebuilt. They are a good shock. If they are the disposables, I would go to fox zero pro's. Alot of guys swear by the newer air shocks. For me, the trusty spring zero pro's are more reliable and work as good or better than alot of the new mouse traps, they are just less expensive, weigh a bit more, and don't have the bling factor that the air shocks do. Same goes for the shocks in your rear skid. It is a different animal with good fresh shocks in it.