Does the air supply connect to the front or the back of your fan clutch?

Front Air

Rear Air

Measure the outside diameter of the fan pilot or "nose" of the fan clutch.

Measure across the fan bolt circle (on front of clutch) from the center of one stud to the center of the opposite stud.

Measure across the drive circle (on back of clutch) from the center of one bolt to the center of the opposite bolt.

Measure the outside diameter of the fan pilot or "nose" of the fan clutch.

Measure across the fan bolt circle (on front of clutch) from the center of one stud to the center of the opposite stud.

Measure across the drive circle (on back of clutch) from the center of one bolt to the center of the opposite bolt.

Measure across the drive circle (on back of clutch) from the center of one bolt to the center of the opposite bolt.