Hi, I recently entered a trial called Isle of Man Mud Fest and came second, so a good day was had by all. Driving the Jeep home I noticed a change in the handling of my TJ. A good power wash later and I found the course. The top mounting bracket for the Long Arm suspension on the rear axel has completely sheared off, on the driver’s side only

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Has anyone had this happen to them? Or dose anyone have any advise for me on repairing this. I am a welder, so I will be repairing it my self.
Cheers