2500 4x2 Pickup L6-359 5.9L DSL Turbo (1994)
Front Crankshaft Seal: Description and Operation
FRONT CRANKSHAFT SEAL
The front crankshaft seal is mounted in the front gear cover. A double lipped Teflon seal is used. The sealing surface on the crankshaft must be
clean, dry and free of oil during assembly.