i was told i have a engine from a 04 silverado. the os i got back was 9381344 and from the bit of research that i have done it seems this is best compatible in hpt but i am running tunerpro. instead of fighting to find matching xdf files i want to flash my pcm to the 12587603 bin and find a linear xdf file to use with the new tune, will this work? from what i see, it is still a LM7 base engine so it should be able too. but i would like input from others before i do it.