You just take the stock sliders off and drills holes where the holes in the summit seat rails off. Then bolt them on. Or you can weld them if you have the ability.
i used my factory seat brackets. i used the rear hole in the factory slider and lined it up with rear hole in the summit seat. then on the front hole i used the factory braket as a guide and drilled a new hole in the steel plate in the bottom of the seat and put a nut on the back side inside the seat.
I keep an eye out for a cheap manual seat bracket all the time. Eventually I'll find one cheap and then I'll be adding these to my car as well. My power seat bracket still works, I just rarely move it and I know eventually it'll break anyway, so might as well go with a manual. Less weight too.
the stock electric seat sliders sit high as hell, im only 5'9" and about 150 pounds and i have a hard time fitting between the seat and steering wheel. This week end im going to put the sliders that came with the seats on and just drill new holes to mount them tho the floor with the stock hole in the floor.