Can you make an Allison 5-speed into a 6-speed would switching the valve body bell housing and the tail shaft cover or adapter wondering because I have a stage 5 transmission and torque converter 5 speed and now I have a 2007.5 Duramax with a 6-speed want to put that transmission in the new truck wanted to know if I switch valve body bell housing and rear adapter if that would be a 6-speed