for the pershing, there is the little parts on the outside of the tracks that hook the 2 pins together from 2 different pads right? well you gotta get a couple pliers and pull on the outside and inside one at the same time. not garunteed how it will come apart though. could have the same pin on both sides come or one on each lol. anyhow that is how i got mine apart. just gotta make sure you get the track pads and the center idler together right when you put it back. to get them back together i use a LARGE pair of channel lock pliers to press it all back together.