EBC GD7509 09-11 Dodge Ram 2500 Pick-up 5.7 2WD/4WD GD Sport Rear RotorsEBC GD7509 09 11 Dodge Ram 2500 Pick up 5. 7 2WD 4WD GD Sport Rear Rotors Product Information EBC Sport Rotors feature wide aperture slots that draw cool air into the braking contact area and reduce temperatures preventing brake fade. Dimple drilling avoids stress cracks and the anodized EBC finish provides a great look while preventing corrosion. EBC Sport Rotors now feature reduced 3 slots venting which provides slightly less air noise under heavy