OEM GM 4L80E/4L80HD
GM heavy use truck 4 speed automatic 310mm ( Sold as exchange )
B81 Low stall- Diesel, large V8 gas and some 5.7L | ||
B81L GM 4L80 gas and diesel low stall 2001 up | ||
B82 GM 4L80 gas engine 2000 and prior | ||
B82L GM 4L80 transmission high stall 2001 up | ||
