Mopar Performance Roller Rockers

Bushings are really the best on a stock diameter shaft. I have had no problem with Crane/MP and even ProForm aluminum rockers riding directly on hardened/polished/chromed shafts, ductile irons (Isky/Crane, etc.) either. Needle bearings: Harland Sharps and even the cheap ones (PRW/ProComp/C.A.T.) do require metered oiling. The stock chrysler system is adequate, but if converted to full time, a restrictor is needed at the deck surface or in the rocker stand. I used cup plugs drilled to .055" in the last one I converted to full time overhead oiling with the needle bearings. So far-so good.