YAKPERFORMANCE
October 22nd, 2025, 04:32 AM
Just wanted to post I have been working on some F650 / F750 Superduty trucks with Allison 2k transmissions and have been successful in flashing changes to the system for changes in shift points & overall performance. Customers have had a hard time finding someone to change their transmission parameters and shift points. I just did a 2006 F-650 with a 5.9 Cummins a couple weeks ago the customer swapped from a Allison 2500 RDS to a 2500 PTS and wanted to optimize the setup for his ECM calibration + 50HP. We got the TCM flashed and he smiled the whole way on his 3 hr trip home. The process is a bit different on these MD trucks but the everything works great.