70 B-body 6-Way Seat Track Repair

I bought a beat up 70 b-body 6-way adjustable seat track that I’m trying to restore. I’ve watched the seat track restoration YouTube videos, but those are standard bucket seat tracks (different from 6-way). I am trying to remove the “roller & ball bearing carrier clips” that the tracks roll on so I can repair them. The tracks have slop side-to-side, so I suspect I’m missing a ball bearing or two. Does anyone know how to get the little roller/ball bearing carrier clips out? THANK YOU!