Programmer for a 4.8l vortec
Hello, I have a 2005 tahoe ls with the 4.8l. I recently got a transmission rebuild shortly after I bought the vehicle.
The Shifts All Happen At Different rpms. 4th gear drops down to 1300rpms. I was hoping getting a programmer would fix this issue. I was going to go with transgo shift kit for the added line pressure but I wouldn't want to void the year warranty on the rebuild. Superchip seem to have bad reviews, alone with jet performance. Can anyone share their experience with me? Thanks
The Shifts All Happen At Different rpms. 4th gear drops down to 1300rpms. I was hoping getting a programmer would fix this issue. I was going to go with transgo shift kit for the added line pressure but I wouldn't want to void the year warranty on the rebuild. Superchip seem to have bad reviews, alone with jet performance. Can anyone share their experience with me? Thanks


