For 1990-2009 cars

1. Inspect the input housing and shaft assembly for the following items:

• | Porosity

• | Spline wear

• | Three turbine shaft checkballs

• | Retainer and checkball assembly (620)

• | Orificed cup plug (698)

• | Lube hole cracks

2. Inspect the turbine shaft oil seal ring grooves for damage or burrs. The oil seal rings (619) must fit loose into the ring grooves.
3. Inspect the oil feed passages for obstructions.
4. Apply compressed air into the passages indicated.