The ..390 TCM was used from 1994-up when a 6.5 diesel and 4L80 was used.
That 6.5 was an N/A with mech. IP VIN "Y" L57.
Came in vans, commercial vehicles, school bus conversions, ups, frito lay, etc.
panel trucks. Not pickups, burbs or yukons.
Do not trust any application list you see, most are...