Superior GM 700R4 700-R4 4L60 4L60E Transmission Billet 2nd Gear Super Servo Kit 4L65E 4L70E 4L75E. This Problem Solver deals with these problems: Sluggish performance when positive shift is demanded; Lack of holding power in 2nd. Voted as One of Transmission Digest's "10" Best Products for 1997. Largest apply area available for 700-R4. 35 percent more apply area than the Corvette servo. Super positive 1-2 shift. Quicker servo release on the 4-3 downshift. Positive 3-2 kick down. Adjustable pin tip included to set perfect band clearance. Great for heavy service, towing, racing and off-road. Also can be installed on the 4L60-E. Kit contains two-piece 6061-T6 billet aluminum piston set with three piece steel washer set, servo clip, servo pin extender, custom return spring and four piece Teflon sealing, ring and O-ring set.