Need Help: TH400 to 4l60e
built 4l60e
circle d stall
tci controller
crosmember
driveshaft
stock shifter
new console cover
Personally I would skip the TCI controller and add the 4L60E wiring to the harness, but I am very comfortable with wiring. This would also require getting the 4L60E-segment software installed in the PCM.








