COMPATIBILITY
This Transmission Control Module (TCM) is a genuine replacement for all 2008 GM Truck/Van models with 4L80E transmission. Enthusiasts commonly refer to this module as a T42 Transmission Control Module (TCM).

VIN PROGRAMMING

If you are using this TCM for an LS-Swap project, your VIN may not be important. If you need this to match the VIN of your production GM vehicle, please 
Once we receive your order, we will pull a used, but inspected and tested, ECU from our inventory and program it with the latest GM calibration. You may provide a VIN during checkout as a note on the order or by email immediately following your purchase, but a VIN is NOT REQUIRED