I recently had my stall converter on my 4l80e changed from 2800 to 3500. Now the transmission wont shift to 2nd wot at the track and when i drive it around the house it takes longer to shift from 1-2. the transmission fluid level is good. Before you could fill the shift and now can not tell. Any help is greatly appreciated.
2004 gmc sierra 1500
76mm Turbo 6.0 lq4 with tsp bald eagle boost cam.
built 4l80e hughes performance with protorque triple disk converter
6-29 log is the drive around the house today.
5-13 log is drive before stall change
6-26 log is at the track not shifting wot
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