Usually if a billet aluminum full roller rocker breaks, its due to a fastener failure or improper installation. I've had my Crane Gold rollers on for years with no issues. Too bad Crane Cams is, and has been, out of business though. S & S Motorcycle Engines has purchased the tooling and manufacturing rights at the bankruptcy auction, but they won't be manufacturing ANY parts for at least a couple years, if & when the economy turns around.