4L80E Transmission Shift Kit Valve Body Repair Kit 1991-2009 fits Compatible with GM Transgo

SK 4L80E SHIFT KIT Valve Body Repair Kit Fits 1991-13 4L80E, 4L85E Features and benefits: This kit includes valve body, case and pump components and modifications designed to deliver increased durability while providing short smooth shifts. These changes work in concert with a slight increase in line pressure to greatly improve the overall durability and shift feel of the transmission. The included highly improved wide land self-cleaning design boost valve and bushing resists wear so that pressure rise keeps working properly. Lastly, the EPC boost pressure relief valve system provided helps prevent runaway boost pressure to stop case and valve body wall blow-out due to excess pressure. Corrects/Prevents/Reduces: High pressure parts breakage Soft 2-3 shift Burnt direct clutch Slow 3-2 downshift No upshifts Harsh 1-2 shift Low pressure due to solenoid filter breakup Codes 39, 68, 85, 86, 87, P0731, P0732, P0733, P0734, P0751, P0756, P0894 and P1870 Includes: USA-made hardened boost valve and bushing Pressure regulator valve spacer, washer, springs and snap ring New stronger 4th feed bolt and washer (2) Direct and reverse feed hole cup seals Relief valve system plate, valve, spring, e-clip and drill bit (2) Accumulator valve springs, end plug and O-ring Actuator filter tapered plug, O-ring, spring and end plug

• Parts Ship Daily
• Parts Ship Daily