Sorry, I couldn't remember or find it earlier but if you want specific clamps for a sport trac check this link http://www.centurydistributing.com/clampsforcapslids/titelokclamps.html
I got lucky at my are dealer that had called the company to find a vehicle specific option and realized those clamps work for 2 trucks, they actually had a returned set from a Chevy step side in stock which is the same model for mine-only missing my bolts. Went to fastenal and that was it. I used model tl111s on an a.r.e cap (with flat rail). There are 2 other clamps of different sizes for different rail system. Not familiar with raider caps but worth a check. I payed about 6.50 a clamp x 4