Stainless, Bushed PRW Rocker Arms

I have this same set up, trick flow heads and hydraulic roller from Mike B3, the time line, probably around 4 years ago. I haven't had a bushing failure like that, yet. I probably have 5 thousand miles or so on it. I have always had a ticking, my rockers and shafts appear to be fine. Have adjusted the lifter normally and currently lashed like a solid roller. Same ticking. Guess that I have just gotten used to it. I do check it often, just can't put my finger on anything. Have also replaced the roller tappets. No change.