Feuling Gorilla M-Eight Rocker Shafts & Stud/Nut Kit - 2401-1525 Harley Playing Cards This especially pertains to M8

This especially pertains to M8 models that have a coolant line that covers the rocker boxes

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Feuling Gorilla M-Eight Rocker Shafts & Stud/Nut Kit - 2401-1525 Harley Playing Cards This especially pertains to M8Designed with strength in mind, with over double the strength of the factory & or our competitors shafts. Precision ground from 4140HT steel, gas nitrited & final surface treated. After having a rocker shaft failure road racing our 2019 Harley Davidson Road Glide at Laguna Seca in 2020 we decided to source the best possible material and heat treat process available to create the best rocker shaft on the market. Custom tooling was created to provide a