I ordered two lift motors for my Ford F-350 left front window, the first one from Cardone was an exact match to the factory original one, but I ordered the left and they shipped me the right. It might have worked but I would have had to install it upside down and reverse the wiring, and I am not sure if it would have fit upside down so I returned it (lost my shipping charges) and ordered another one, this "Replacement" one. It was a smaller motor, plastic mounting flange and looked much cheaper, but it was for the correct left side, so I went to install it. Oops, the mounting holes don't line up, two line up, third one not at all, the mounting flange was simply made wrong and not the same. I considered options: try to order another one, at the cost of losing more time and shipping charges and it might not fit either, not worth it. SO I drilled a new mounting hole in the flange, it worked, the motor is installed and works well.