These are my sliders I have had them for a while, they were made by Articulated Motion in Phoenix.
https://theultimatejeep.com/images/i.../photo12-1.jpg
https://theultimatejeep.com/images/i.../photo15-1.jpg
They are welded on no coming off anymore
https://theultimatejeep.com/images/i.../photo13-1.jpg
https://theultimatejeep.com/images/i.../photo14-1.jpg