A Body Seat Tracks repair question...

The track in the picture above has rollers in steel cages.Catch that cage with a strong hook like a dental pic and pull it out the end. There is a hole in the bottom through just one of the 2 pieces (hard to see in the pic). I have had to drill through there so to drive the stop impression in the adjoining piece back a tad but most will come out just slammed against one end stop or the other. Hope this makes some sense.