Okay, I finished the transmission swap and almost all is well. Shifts very smooth (I'm surprised since I had to use the local truck stop 80W90 gear oil) and it doesn't pop out of gear anymore under any load condition.

Only problem is that I am still not getting anything on the speedo or the turbo timer. I used the same speed sensor that was on the tranny when I pulled it... as a matter of fact I didn't even take it out... but still no speed at all. My only guess is that it's got to be either the ecu signal wire or the ecu itself. Any input?