6L80 / 6L90E
GM — Silverado · Sierra · Escalade · Camaro
Common failure points
- Harsh 1–2 shifts and converter shudder
- Pressure regulator valve bore wear
- Leaking seal rings and spacer plate gaskets
The AMTX build
- Enhanced valve body with reinforced pressure regulator valve
- Updated seal rings throughout
- Notched valve body spacer plate gaskets

