Check the listing for details. Transgo Reprogramming Kit TH 200-4R Chevy, GMC, Buick 1981-On (2004R-HD2)*. Condition: New. Listed at 169.50 USD. Transgo (200-4R-HD2-A) Transgo (200-4R-HD2-A) Transgo (200-4R-HD2-A) TRANSGO REPROGRAMMING KIT Also includes Valuable Tech Data This is the same kit that Professional Transmission Rebuilders use Includes all items shown2004R-HD2-A_______ A Must for all Grand Nationals _______ Fits 1981-On 4 Speed TH-200-4R Models Street & Strip The options in this kit will produce shifts from Firm to WILD ! New dual feed 3rd Clutch circuit increases 3rd Clutch holding torque by 200%. Included is the new Billet 2nd Servo Piston that increases Band holding torque. High Performance shifts & durability all in one Box Note: Includes calibration for multiple Valve Body types ________________________________________ Save a bundle here over the cost from a dealership. Buy with confidence * Check out our feedback All of our items listed are in stock and ready to ship We Quick-Ship Every Day !