I have the OS 12606961. I understand this is the updated 12592618 5.3L. Could I use xdf of 618 for 6961? The only difference is two transmission changes from gm. The truck is a 2005 crew cab 5.3 w/ 4l60e. I would just like to remove vats, rear O2 sensors, and change differential so tach will be correct.
After reading pcm I received a reduced engine power message on dashboard this wouldn't have been the cause correct?
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