Check the listing for details. TransGo Shift Kit GM 4L60E Includes .500" Boost Valve (4L60E-HD2)*. Condition: New. Listed at 97.50 USD. TRANSGO REPROGRAMING KITValve Body Rebuild KitIncludes all items shown FITS: 4L60E, 4L65E, 4L70E and 4L75E Except Hybrid units. Does not require transmission removal for proper installation. 4L60E-HD2 Crisp muscle car or full race shifts Puts the driver in command Holds 1st, 2nd, 3rd to any speed Backshifts to 3rd, 2nd & 1st by moving the lever NOTICE: 1998 UP If vehicle has Torque Management this kit will not make hard shifts. However many aftermarket programmers for engine performance reduce Torque Management. "7-CS" (Clutch Spring Kit) Requires transmission removal for Installation if revving over 5500 RPM "4L60E-BOOST" (.500 Boost Valve) After March 2005 an Input Speed Sensor was addedwhich requires transmission removal for installation. Previous to March 2005 does not requiretransmission removal. ________________________________________Save a bundle here over the cost from a dealership. Buy with confidence * Check out our feedbackAll of our items listed are in stock and ready to ship We Quick-Ship Every Day !