WARNING: This page is about a different car, the 2011 RAM Pickup and 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Inspecting Crosshead For Cracks
Courtesy of CHRYSLER LLC
Inspect the crossheads for cracks and/or excessive wear on rocker lever and valve tip mating surfaces. Replace any crossheads that exhibit abnormal wear or cracks.