I ran Spidertrax spacers for over three years with many crazy off road adventures during that time frame. I never had any issue with them and logged over 75,000 miles with them. Took them off almost two years ago when I got my 17x8 wheels and sold them to my brothers boss who has a 2012 Wrangler. He has been running them ever since again without any issues. How many ft lbs did you have the spacers torqued to the hub and how many ft lbs did you have your wheels torqued to the spacers. Also did you use a good torque wrench when you installed them?