They do it by taking quality materials and constructing a trailing arm that has a much shallower angle up to the pivot point. The result is 3 inches of extra clearance without having to change shock length or any of the mounting points. The 3 inches of clearance you gain is equivalent to mounting a tire that's 6 inches taller, so with that extra space you'll clear a surprising amount of obstacles that would normally scrape and catch on the stock trailing arms. And because the Zbroz Racing Max Ground Clearance Trailing Arm Kit comes with spherical bearings already installed and a direct bolt-up design, installation is super easy to do in your garage or driveway.