Originally Posted by
blindsquirrel
There is no one single VIN that will cover this, 'this' being an existing '07 Corvette pedal and TB, and existing ECM service number, and a T42. Your "(not difficult)" is not as straightforward as you think.
The only years that work with the 12603892 ECM service number are 2006 and 2007. The only auto trans in '06-'07 Vettes was T43. A '07 non-'Classic' truck ECM OS ('06 trucks were all still P59s) will not work with the existing Corvette pedal/TB.
Which parts should be replaced to make it work using a single VIN?
The '07 Vette ECM OS will work with any pre-'09 TCM OS whether it's a T42 or T43. T42s can be properly fully flashed using HP Tuners and a write-entire as long as the file being written is licensed first. Buying a T42 pre-flashed to either the '07 Suburban or '08 Express 4L80E VIN will work with the existing ECM and ECM OS and not require spending another 2 credits just to license a different TCM file.