Couldn't post in the How To section, so did it here, if someone can move it. Before we start, I would recommend that you fit the seats without grinding anything first, so you can see first hand what you need to be doing. The two 'wheel arms' that sit in the runners are too deep, and catch on the carpet, meaning you can't slide the seats backwards and forwards. Mine still catch a bit; the seats aren't exactly easy to slide, but they're much better than they were. Undo the two nuts at the front