We bought Thomasville Cabinets thru HD. They're installed, and we're waiting for the granite. We bought the full extension sliders, but not the self-closers. seems like I read that the self-closing mechanism had to be installed during cabinet installation. That should mean that I could add them later. Does anyone know what brand of sliders they use on these cabinets, so I could try to order closers without going thru HD? There is a name on the door hinges, but don't see anything on the sliders.