Hey everyone. im new to tuning and this seemed like a good place to gather info. i have a 2003 gmc sierra 4x4. recently blew the 4lslippy and im moving on to a 4l80e. Im using tuner pro and im not gonna lie im completely lost. im trying to find the right xdf and mainly trying to find bin files for a 5.3 with 4l80e. no clue how to change it from 4l60 to 80. but if anyone has any tips or leads it will be much appreciated.