1973 Bucket Seat Tracks
After some more research I found the likely culprit is the ball bearing "cages" that are found in the sliders. The bench seat sliders have the same part so if anyone has bench seat tracks I would be interested in those as well, or even better is if you have just the "cages" or know where a guy can buy them.
Photo courtesy of @RedFish
After some more research I found the likely culprit is the ball bearing "cages" that are found in the sliders. The bench seat sliders have the same part so if anyone has bench seat tracks I would be interested in those as well, or even better is if you have just the "cages" or know where a guy can buy them.
Photo courtesy of @RedFish