That is what I had to do to get to them. I do not know any other way to get to the nuts, and linkage. To remove the glass, you must remove the triangle at the rear of the glass. It has a small nylon fastener with a TORX head nylon locking screw behind the run channel at the top point of the triangle. There should be 2 bolts that hold the triangle to the body of the door. The locking screw will not want to come out, and you may have to force the fastener out if it does not release it. The fasteners are available, but I do not remember where. I was fortunate, after I damaged one of them, and while changing the carpet, found a new one under the carpet. Now, if only that type of good fortune would happen with expensive parts.