1990 GMC C2500 equipped with 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.3L V6 Gas OHV
1
Thermal Fan Clutch Counter Clockwise (Reverse) Rotation Severe Duty w/ 3.42 or Lower Rear Axle Ratio w/ AC
1990 GMC C2500 equipped with 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.3L V6 Gas OHV
Thermal Fan Clutch Counter Clockwise (Reverse) Rotation Severe Duty w/ 3.42 or Lower Rear Axle Ratio w/ AC
1 Per Vehicle
1990 GMC C2500 equipped with 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.3L V6 Gas OHV
1
Thermal Fan Clutch Counter Clockwise (Reverse) Rotation Severe Duty w/ 3.73 or Higher Rear Axle Ratio
1990 GMC C2500 equipped with 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.3L V6 Gas OHV
Thermal Fan Clutch Counter Clockwise (Reverse) Rotation Severe Duty w/ 3.73 or Higher Rear Axle Ratio