Common problem. You need some custom rails or JIC makes some for their seats. I made my own for my sentra/sparco roadster combo. Does the sparco have holes only in the bottom or also on the side as well?
NISMObuttnutz said:Make a brakett so you can use your stock rails and sliders, just make an adapter to go from the seat to the rails, shouldn;t vbe too difficult, if I'm thinking correctly(which I very well may not be) you can just drill holes to line up with the seat in the stock rails.