FITS:  AODE, 4R70W & 4R75W 91-08 FEATURES:  Shift, firm, full-throttle shifts that have "class", performance and durability. Back shift to any gear at your command. Holds the gear you select to any rpm. Has EPC relief to prevent high line pressure parts breakage.  Upgraded in July 2013 to include new steel pressure regulator valve. Special Instructions: Does not require transmission removal. NOTE: After 04 Do not use Forward Clutch Sealing Rings for Pump. Free ground shipping Continental USA only