New AODE / 4R70W K085 Super Servo made by Fairbanks. This would be a great upgrade for any AODE / 4R70W, but is extremely important in high HP applications to keep the band from burning. The AOD-E / 4R70W Super Servo offers greater holding capacity, a more positive 4th gear, helps eliminate premature overdrive band failure and is built of 6061-T6 billet aluminum. This servo also offers an additional Teflon sealing ring for better centering and sealing along with a high temperature deep groove lip seal. A must for all long term rebuilds, this servo is also made in the U.S.A. On Jul-07-05 at 19:16:23 PDT, seller added the following information: