Discuss General Motors (GMC, Chevy, Pontiac, Hummer, Cadillac, etc) tuning topics here. Request definitions, discuss parameters, etc.
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Ok I'm totally new to this but I have a pretty good understanding of how tuning software works from using HP Tuners. But I am completely lost on navigating this software. I have a 94 k2500 4x4 with a 4l60. I'm looking at the .adx files. I know I need the OD file because I have the 4l60. My question is what is the difference between A_217_ODv250.adx , A_218_OD_Trans1_v250.adx, and A_218_Trans2_v250.adx?? Where would I find the info to know the difference between the files?