My car window is fixed?

This is what my car door looked like after Dad disassembled it to fix the window. I was leaving the dealership after an oil change earlier in the week, and I heard a clunk, thud when I closed the door. Dad was kind enough to take a stab at fixing it, and there were no leftover parts when he was done. The window goes up and down as smooth as _______ (fill in the blank, my mind just went blank.)

Note: All people that were crazy enough to sell their house prior to buying one have now bought a house. Phew, nobody will have to be homeless for long!