Stage 1 - Street/Strip Version (Rated for 550-600 HP in 4x4 Applications) FEATURES:• ATF Custom Calibrated High Pressure Pump Assembly• ATF Custom Street/Strip Standard/Forward Pattern No Brake Valvebody• 4 Clutch Intermediate Pack• Extreme Duty Clutches and Steels• New Thrustwashers• New Bushings• Factory Pan• High Flow Filter