4L80e 2003 express 2500 6.0

What gear should transmission be in for removal of transmission and for install.

Also what's the best tourqe setting for flex to converter bolts. And flex to crank shaft bolts. Thanks. I read 30 to 35 ft lbs for flex to Tourqe Converter.



Should I drain fluid to says have to remove dip stick tube so most likely going to drain itself either way. Thanks for helping.