I am glad you did not hurt the car or yourself first off. We are going to get both set off the front of your car so we can see if the there are stress cracks or a bolt failure. But there are 10.9 with a tensile strength of 150,000 psi but there are alot of factors envolved there. If the bolt was not torqued over stock specs then I would tell everyone to do so. Also make sure you grind the spindle hub to make a good clearance between the spacer and the hub so the bolt is not cocked and won't allow the bracket to face up squarely. DemonSVT has did some serious load test on the brakes and we will take the bolts on his other side and some new bolt and have them stressed tested. We will do anything to help the problem but will not be held responsible for the install or product since the kit is not DOT legal. And Bill we will send you a new kit with all the hardware. If you install it again give me pics of the brackets installed where I can see contact points etc. Thanks Joey