TK Performance transmissions have been proven thousands of times both at the drag strip and daily drivers. The quality and craftsmanship we put into every built transmission we upgrade is regarded as "the best in...
6L80E Rear Planetary. TCS has redesigned the O.E. rear planetary assembly with a 4140 HTSR billet steel drive plate to eliminate spline/housing failure. The new drive plate is milled and contoured to the planetary housing...
6L80E / 6L90E New GM Transmission Control Module Programmed to your VIN upon arrival, Can be Custom tuned with our calibrations when purchased with our Custom Tuning.
This Zip Kit fits 6L45E, 6L50E, 6L80E, and 6L90E transmissions and targets the root of multiple complaints by sealing the critical circuit pressure losses so common with this platform. This exclusive kit contains very uniquely...
GM 6L45, 6L50, 6L80, 6L90 boost valves provide feedback pressure to their respective clutch regulator valves, helping control apply and release of the clutch. Pressure control solenoid fluid pressure reacts with the valve to control...
GM 6L45E, 6L50E, 6L80E, 6L90E units can suffer from high or low line pressure and or overheated transmission issues if the pressure regulator valve or other valve train components are worn, damaged, or stuck. Most...
TK Performance transmissions have been proven thousands of times both at the drag strip and daily drivers. The quality and craftsmanship we put into every built transmission we upgrade is regarded as "the best in...
TK Performance transmissions have been proven thousands of times both at the drag strip and daily drivers. The quality and craftsmanship we put into every built transmission we upgrade is regarded as "the best in...
6L90E Rear Planetary. TCS has redesigned the O.E. rear planetary assembly with a 4140 HTSR billet steel drive plate to eliminate spline/housing failure. The new drive plate is milled and contoured to the planetary housing...