sunroof

[flint_smoke]

I have a 04 CC and my sunroof is foobared. I bought a salvaged sunroof out of a 03 f350 and installed it, but its not working completely right. I had to put my old motor on the salvaged assembly because the harnesses were different. After doing that i tested it and it opened fine but it wont close all the way. The timing on the motor is set right. It seems that the glass is trying to lift to early and scrubbing the roof from what I can tell. Any one have experience with this. Any advise?