• Conversion to a bushed style assembly eliminates rocker body wear
  • Micro-polished hardened 4340 shafts with C932 bearing bronze bushings
  • Oil flow channels re-designed to accommodate the bushings
  • Kits are also available with 0.005” oversized bushing, which allows for salvaging of worn rocker bodies. For the oversized bushings, the rocker bodies will require honing of the housing bore

Cummins 24 Valve Trunnion Upgrade Kit

Bushing O.D.



    Smith Bros. Pushrods

    2895 SW 13th St.

    Redmond, OR 97756


    Fax 541-389-8840

    We’ve been crafting custom pushrods since 1953. We build superior quality pushrods for performance cars, trucks, motorcycles, tractors, restoration and custom projects.  Our pushrods can be found in many NASCAR performance engines and in your everyday driver.