So, the guy installed all new traction plates, steel plates, direct clutch and clutch hub, because those were wasted as well. The transmission is back on the car. (the vacuum modulator was changed prior to the transmission rebuild) The filter and liquid is all new. Now, when I put it in drive, it starts going forward right away, when I put it in reverse, it goes reverse right away. But when I try going uphill, it seems as the gears slip, and the car starts going backwards. Is that a torque converter issue or what? My troubles are not ending yet.