Dans Diesel Performance TCM - AL5

2001-2005 Allison AL5 TCM Core is required. Pre-Paid return label will be included in the box. The AL5 Transmission Control Module is found in the 2001-2005 2500HD/3500, CC and Medium Duty trucks with the Allison Transmission.  DDP offers a Pre-programmed TCM which comes with either factory calibrations or our enhanced calibrations. Benefits of our enhanced TCM include: Revised shift strategies for better shift RPM & quality. Improved torque converter lock-up. Works with factory or aftermarket ECM programming. This plug & play TCM is delivered right to your door and takes roughly 5 minutes to install. No dealer visit required. 1 Year Warranty