2003 Silverado, 4x4, LM7. Original OS 12579405, written OS is 12587603 (both 1mb).

Only change I made to the replacement file was disabling torque management. Truck runs great, however I noticed my Fuel gauge reads backwards (Empty reads full, Full reads empty). There isn't an XDF for my original OS, which is why I moved to the new OS (The file written to the truck is from an 04 LM7 4x4).

There is a Fuel gauge table in the new OS that sends PWM values to what I am assuming is the stepper motor in the cluster, and I would assume reversing the values here would fix my problem.. however I wanted some input before making the move.