I am new to the site and K5 world. I purchased my first k5 back in March. Still mostly stock: 350, TH350, front Dana 44, rear 12 bolt, 32x11.5x15. I am still learning about the K5. Everything has been great until about a week ago, when I started hearing a knocking sound when I turn. I notice what seems to be a lot of play horizontally back and forth in one of my axle shafts. It seem to be what is making the sound. Do you know what to do to fix this issue?