Well, I dont have plates for it, so can drive it legally yet.
That said, I drove it around the neighborhood anyway and it drove pretty good. The engine ran smoothly, the trans shifted as smoothly as the old fluid would allow (but no slipping), and the brakes and suspension worked as they should. Probably should rebleed the brakes, though. GS mode works, could feel the steering and ride stiffen up.
There may be a couple issues. Airbag (SRS) and Stabilitrak lights came on.
Scanned it when I got home, and for some reason the SRS module isnt communicating with the car anymore. EBCM issue seems to be connected to the SRS issue. All fuses are good.
Also, there are permanent P0030 and P0135 codes in the ECM, but they arent pending or stored, which is weird.
I put new O2 sensors in the exhaust when I redid everything, and fuse is good and power is good to the sensor.
Guess I have to check all the grounds and do continuity tests now. Yay, not.