Well guys after i tune my tranny with the tuning school book it made a big difference since i was having slow shifts on my single cab 5.3 with 6lb's of boost.

I like how it shifts but it gave me some problems, First when i take of from a dead stop it pulls nice then it shifts to 2nd and out of no where it just slips and red lines. Ok well i was like let me put back the torque management and try it out, It shift fine the only thing its does and it was doing it before with the torque managemnet off to it slips on 2nd gear. If i punch it from 25 mph so it can drop to 1st gear, It drops but it dont go no where It drops and it slips all 1st gear.

Then if i do it manual it shift fine it dont slip at all, Have anyone had this problem?

 

Tuning is everything with the 6l80 and its not easy. I would talk to some of the tuners on here and get some base settings from them.