2 - Red Hound AutoTM, experts in the automotive and RV industries, manufactures premium products for the best price. Premium trailer door hinge, designed tough and made from the highest quality materials. Great for freight truck doors, horse trailer doors, dump trailer doors, steel cargo trailer doors and more! Made from formed solid steel, hinge is greasable for easy maintenance. Product is backed by a no-hassle Limited Lifetime Guarantee against defects.