6T30, 6T40, 6T45, 6T50 SHIFT KIT Valve Body Repair Kit Fits GEN3 with chain driven pump

This t.ransgo 6T40-G3 SHIFT KIT Valve Body Repair Kit fits vehicle: . .s equipped with GEN3 Series 6T30, 6T40, 6T45 and 6T55 automatic transmissions. This kit properly addresses the most common low mileage failure on these units with three drop-in valves and two oversize valves, both of which require a tool;Actuator feed limit valve requires #AFL-G2-TK This is the same universal tool kit used with all our 6-SPD FWD GEN2 kitsLube boost valve requires #6T40G3-LB-TKCAt the start of production for the 2015 model year, the 6T40 series of transmissions upgraded to GEN3 with an off-axis chain driven pump incorporating a lube boost valve.This lube boost valve is very active and exhibits extreme low mileage wear (up to .060 ). To salvage the pump, t.ransgo engineered an oversize hardened steel valve and spring combination to mize the valve oscillation responsible for premature bore wear, ensuring a lasting fix.Installation of the new design lube boost valve assembly requires a one-time purchase of carbide tool kit #6T40G3-LB-TKC. The two included guides cover all 6T40 GEN3 series pumps and the dual-piloted carbide reamer ensures quick, easy and precise machining that will last infinitely longer than high speed steel.Corrects/Prevents/Reduces:Ratio or solenoid performance codesErratic TCC apply or TCC huntingOverheatingIncludes:Drop-in GEN3 pressure regulator valve and springDrop-in GEN3 shuttle valve and bushingDrop in TCC regulator valve and springOversize actuator feed limit valveOversize GEN3 lube boost valve and spring