i haven't seen a rock krawler lift on a commander yet, but if it's anything like the rest of their product line i would buy that without question. keep in mind i am a fabricator and build just about anything you can imagine, not just off -road stuff. i have all the material and know-how to build any type of suspension i want, but when i am ready for a long-arm suspension set up, i will be buying the rock krawler kit. plain and simply put... their product WORKS! i have seen their long arm lifts on several different models of jeeps and have always been impressed.