New Cast Aluminum Transmission Oil Pan with an extra 2 quarts of fluid capacity,New OEM clutches and steels,Updated GM Forward Piston to prevent cracks; common on OEM piston,New Clutch Select and TCC Regulator valve to eliminate sticky valves,New Billet ProForce Torque Converter which prevents notorious converter failure,Cleaned and tested TEHCM unit,New TEHCM pressure switch seals and discs,Machined bellhousing and pump surface to eliminate wear and pressure loss,New Molded Pistons,New Pressure Regulator valve to prevent low line pressure