Silverado 3500 4WD V8-6.0L VIN U (2004)
7. Remove the throttle body nuts.
8. Remove the throttle body.
9. Remove and discard the throttle body gasket.
INSTALLATION PROCEDURE
1. Install the NEW throttle body gasket.
2. Install the throttle body.
NOTE: Refer to Fastener Notice in Service Precautions.