Wheel to Gooseneck Adapter C5G1216 for 20,000 lbs Height 12" - 16" 08331635OE Number C5G1216 Will Fit for Following Models Camper RV Trailer's kingpin box Not for trucks with beds shorter than 6 feet or cushioned style king pin boxes. Features: Towing Capacity 20,000 lb. GVW Tongue Weight 4,000 lb. Cushioned 360, plus up and down Coupler locks with padlock No drilling or welding required Minimal wear and tear on both trailer and vehicle Fully Adjustable model allow's the body to move from 12" to 16" in height from the top of