The whole drive train has about 5000 miles on it. Motor was hot tanked when bilt. I did all this because it started to get warm in traffic. I found that the clutch on the fan was bad, I could cool it down if the rpms were raised. So when I tore it down to put the new cluth fan in, I saw that the radiator had a small leak so I had it fixed. The old fan stuck out of the shoud about 1 1/2 inches the new on only about 1/2 inch. May try to flush the system and put the 7 blade fan on the clutch.