Stability system disabled on my 05 GMC Yukon.

I had to replace the transfer case cause it was crunching and would just go into neutral. The transfer case that I put on it is not the correct one. Mine had one plug on the actuator and the one that I put on has 2 plugs. I've put the scanner on it and the codes that come up are C0306, C0321, C0327, U1303, and P0420. I know the P code was already there. On another note the vehicle is running fine and everything seems to be good except for the stability system.