Clutch (Thermal) Fans For Sale

i'm interested in one of them, i need one for a job i'm doing. its a tight fit and the old one measures 2 3/8ths. any more than 2.5 and the fan will hit the rad. i'm talking about the clutch unit itself. could you measure from the face to the mounting flange. if it is what i need i will buy it. thanks MARK.