This MRK GM 2007 4L60e to 4L80e Transmission Conversion Harness allows you to convert your existing 4l60e transmission to a 4l80e transmission. This harness is compatible with all GM trucks and SUV’s from 2007 to 2008. There are two components of the conversion harness. The first is the adapter harness that converts your current transmission plug and wires to the new 4L80e configuration. This saves you the trouble of repining any connectors, and is easily removable. The second component is the Front Input Speed Sensor connector. This part of the conversion harness runs from the FRONT ISS sensor on the transmission to the ECM. This will give the ECM the correct signal it needs to operate the transmission. In order to complete the conversion you will also need to have the PCM/Trans Controller (E38/T42) reprogrammed to a 4L80e for proper operation.
This MRK GM 2007 4L60e to 4L80e Transmission Conversion Harness will NOT work on Older GM SUV’s and Trucks, you will need our “MRK GM 4L60e to 4L80e Transmission Conversion Harness”
**Adapter Harnesses are NON-Returnable, Please verify your application before purchase**