I installed 373 gears, about a year ago never adjusted the pcm for it until today
well i used tunercat to program the gears,The car acts like it has a high stall converter in the car, is this normal feels more torqueier down low too, It acts like the tranny slips before the car shifts , but just after i programmed it. Did i do this right or did i do something wrong ? any help will be appreciated. thanks

All i did was adjust in the speedometer calibration in tuner cat
changed the tire size to 245/50 16.. and changed the rear gear ratio to 3.73
hit calculate then apply, did i miss anything?

 

you need to adjust/correct all of the transmission shift mph tables and the torque converter clutch lock and unlock tables