D 350 Pickup L6-359 5.9L DSL (1989)
Remove the push rods.
ROCKER LEVERS - DISASSEMBLY
If the rocker lever and push rods are to be inspected for reuse, follow these steps.
Remove the retaining rings and thrust washers.
Remove the rocker levers.
CAUTION: Do not disassemble the rocker lever shaft and pedestal. The pedestal and shaft must be replaced as an assembly.