we need more details, there is no thing as a universal slider and if there is its gonna fit like shit, get a set of seats you want and order sliders, i ordered a set of sliders and brackets for my recaros at on track performance
sounds like the same pattern as my seats, i made a set of brackets, or adapters if you will, to fit them to my stock tracks. But...they fit like shit. So i had to completely fab up a set and the supplied. Its snowing here right now or would pull one and snap you some pics. What brand are the seats your trying to put in.