The RVGC-CA (Cushion Adjustable) is a product that will allow you to pull your 5th wheel camper with a Gooseneck ball without having to bolt on an adapter. This is a one piece product that bolts into your existing bolt holes where your king pin box is mounted currently. Simply unbolt your existing king pin box and install the RVGC in the same bolt holes. This product is rated at 24000 Pounds and a tongue weight rating of 6500 Pounds. A smooth ride for you and your cargo without bulky air bags. A single high-tech cushion does the job. The RVGC-CA is the cushion adjustable model which gives you 4 Inch of adjustment down by the coupler and most trailer manufacturers have adjustable whole patterns to allow you an extra 3 Inch of adjustment where it bolts to your 5th wheel which makes the total about 7 Inch of adjustment.