2001 Chevrolet Silverado 2500 HD Engine: 6.6L V8; Reverse Rotation|Severe Duty Thermal Fan Clutch;. 2002 Chevrolet Silverado 2500 HD Engine: 6.6L V8; Reverse Rotation|Severe Duty Thermal Fan Clutch;. 2003 Chevrolet Silverado 2500 HD Engine: 6.6L V8; Reverse Rotation|Severe Duty Thermal Fan Clutch;.
