Ford 5R55W 5R55S Transmission Remanufactured Solenoid Block Pack 2002-03 Sonnax The improved design of these blocks features a new, integrated, printed circuit board in place of the OE circuit assembly that eliminates fatigue failures common to the ribbon cable inside the OE circuit assembly. In addition, the integrated circuit board soldered connections provide a more secure interconnection than the OE barbed, press-fit connection for greater durability All remanufactured solenoids are 100% tested. New integrated circuit board Improved design over OE no-hassle direct replacement remanufactured solenoids are 100% tested new Viton o-rings. Note: Fits 5R55W/S '02-03