The Surge Hitch is designed in a way that will direct 100% of the tow forces through an air bag. This system gives a nice soft start, great for trucks with clutches, and a much smoother ride, reducing the chucking and jerking you feel. The Shockerhitch Gooseneck Surge Hitch is very easy to install and use. Simply replace existing coupler tube using basic tools, usually just a crescent wrench. The Surge Hitch is a low pressure hitch that does not require an elaborate “air system”, commonly between 20 - 30 psi does the job.