Grand Prix V6-191 3.1L VIN M SFI (1998)
2. Install the gasket (369) and the spacer plate (370).
3. Install the ball check valves (372 and 373) into the valve body. Use the J 36850 to retain the ball check valves in their proper locations.
4. Install the gasket (371) and the valve body (300).
IMPORTANT: Do NOT use impact type tools on the valve body or on the oil pump.