Past few weeks I've noticed a pop/clunk from the rear. It only happens on the compression stroke when both rear wheels go over the same bump exactly the same (like hitting a speed bump quickly). Looked at the tri link and can't seem to find any play in it. I rocked the KJ back and forth while watching it and it didn't move. Also tried prying it up with a pry bar and nothing. Noticed the driver's rear shock is covered in a heavy mist/sludge. There are also rub marks in the wheel wells from the tires hitting. If it isn't the trilink, could it be that it's just bottoming out and the shocks are shot? I've blown shocks on the KJ before but it doesn't feel bouncy this time.