Mopars Skid Resistor (2xs more skid resistance) and premium quality Under-the-Rail Bed Liners and Tailgate Covers are custom tailored to your trucks box. They are molded of a blend of rubber and polyethyulene with a skid resistant surface and ribbed design that promotes drainage of water from the bed. Mopar Under-the-Rail Bed Liners provide full use of the integrated verticle and horizontal board dividers. Tailgate Covers feature cup holders and wrap over the tailgate rail. Color: Black Size: 5.3 Bed Notes: For Crew Cab with a tailgate spoiler. Skid Resistor Bed Liner and Tailgate Cover. Rams Head logo. Vehicles with aluminum tonneau covers require bedliner modification due to bracket interference.