2002 Silverado with 4.8. And a rebuilt 4l60e trans. It?s a restomod with painless wiring.
Transmission start out in first and goes to 2 and 3rd gear. Come to a stop and it?s stuck in 3rd gear won?t down shift to first. Restart truck and it starts in 1st gear again
You can command it in hp tuners and it goes through all the gears.