6L80e to 4LXXe Conversion Harness

Description

NOTE: Due to the cost & complexity of this product, it is not eligible for returns or refund.  This kit comes with a 1-year warranty, and we are happy to provide technical assistance with your swap if you encounter problems. Be sure this harness will work for your application prior to ordering. Compatibility notes below: 

Time to swap out your 6L80e for a 4L80e/4L70e/4L60e? Our plug and play harness makes quick work of the wiring required for the swap and includes an OEM GM Transmission Control Module with base programming already done!  Retains all of the great OEM features & allows for tuning tuning with popular 3rd party tuning suites since it is a GM module.  Cruise control, gear indicator, & factory transmission temperature gauge work with this swap!  No reprogramming of ECM or BCM required!  Tap-shift/paddle shift is not supported.  We have successfully installed this in many gen-4 6L80e & 6L90e vehicles: Cadillac CTS-V, 5th-gen Camaro, Pontiac G8s,  full-size trucks & SUVs, etc.   This harness does not work with Gen-5 LT-based vehicles, nor Gen-4 trucks with E78 ECM.  Input speed sensor not needed for this kit, do not hook up.    Gen 4 applications with E67 & E38 PCM should all work (no E78), Gen 5 E78, E90, E92 ECM & others not supported.

Also, if installing in a Camaro, check out our 2010-2015 Camaro 4L80e Conversion Trans Mount Bracket – HERE.

NOTE: Your transmission case must have provisions to run an external shift range switch.  4L80e’s come with two different selector shafts, short and long. You must use the longer shaft to be able to run our kit (they are not difficult to change). The part # is 24235194. See difference in shaft here – link.