CURT Custom Tow Bar Base Plate Brackets for Dinghy Towing, Fits Select Chevrolet Silverado, GMC Sierra 2500, 3500 HD Model 70131 49.2" It is designed to be andfeatures vents that were It is designed to be a custom trailer hitch for certain years of the Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD (will not fit with factory receiver With their strong easily adjustable shelving This custom tow bar base plate fits select years of the Chevrolet Silverado 2500 HD and 3500 HD and GMC Sierra 2500 HD and 3500 HD (see application info to verify fitment) It features an OE style design to fully integrate with the front of the vehicle and maintain a factory look