PCS & TCI Transmission Controllers for 4l60e 4l80e. 6l80e

Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. All PSI Harnesses are Made in the USA and are 100% Computer Quality Tested. In addition to wiring harnesses, PSI carries Holley Products, Vintage Air A/C, Dakota Digital Gauges, HPTuners and PCM programming, Fuel Pump Kits, Engine Sensors, Extension Harnesses, Replacement GM connector pigtails and a complete line of hardware to complete your conversion!

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Transmission Controllers

Simple Shift Kit Including TCU And Harness 4L60/65/70E & 4L80/85E

LS/Vortec T43 6L80/90 Transmission Controller (2006+)

LS/Vortec T42 4L60/65/70/75/80 Transmission Controller (2006+)

TCM-2650 GM 6L80/90E and 8L90E Transmission Controller w/ Harness

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