I first cleaned the edges of the motor bracket and then drilled the holes for on the sleds. I drilled the holes over sized and filled them with putty and glued a glass fiber strip on both sides. The I drilled the holes again for the rail. Last time I filled them with some putty. In the afternoon Fetske did come to help me with fixing the screws in the rail and glide strips, Fetske screwed them will I was on the inside holding the nuts. We did the same with the organizers and they are now finish, another check in the box.