Those shocks from that seller are unbranded and made in China. The ad states "New Arnott Rear Air Ride Shocks" but in the description it clearly states the brand as "unbranded" and the country of manufacture as China. Did they come in a box with Arnott's logo on it, with their instructions? If you go to Arnott's website, their AS2700 shocks look different than those pictures on EBay (that also say their part # is AS2700). I hate to say it, but I'm afraid you might have been ripped off and got cheap Chinese knock-offs.