Yesterday I decided to do other things than work out in the blazing heat. Today while driving I was trying my best to replicate this popping, although I wasn't successful replicating it, it did do it while taking off from a stop and navigating through a left turn, about mid-turn through an intersection. If I haven't mentioned it's loud when it happens, IT IS LOUD when it happens. Left turns is when it has been happening the most within the last month, but it still happens on the straights and only while under 15 mph. I have the mount for my gopro now, I want to see this happening on video since nobody will crawl under there and hang from the frame while drive around. I'm going to start with it pointing towards the rear trailing arm-to-frame connections. If that doesn't produce anything, I will point it at the rear of the axle. If that doesn't produce anything, then it will be moved forward of the trailing arm connections. I am doing the more forward video last because of the heat off the exhaust and engine. This always feels like it's from the left side of truck, and of course the exhaust is routed to that side. I don't have a youtube account so I can't upload any video to show you guys the results, but I will report back what I find.