TCM replacement for Allison 5 speed LB7 or LLY

This is a good used replacement TCM loaded with the proper file to match the VIN and stock calibration of your 2001-2004 LB7 or 2004.5-2005 LLY equipped truck.

Requires core return. Note: I did not diagnose your vehicle. If the TCM does the exact same thing the original did then odds are you misdiagnosed.

Please include model year and VIN in your order notes.