I have a peculiar clunk. Kind of like someone is hitting the frame with a ball peen hammer. It's more of a hollow clunk (like cast iron) than a "ting" of hitting a wrench. It can be felt in the feet but not in the steering wheel. It can be heard as well. However, I don't have any floor covering so I can actually hear the whine of a transmission going down the road... 99% of the time it only does it when I go around a corner. I have to have with the steering wheel at least half a turn off center and then take the steering wheel relatively quickly past center at least half a turn. It does it most when I go from left to right. I can't seem to reproduce it while going slow enough to walk next to the truck. I also can't reproduce it while parked. I can sometimes also get it when I hit a hole in the road. I think it's caused only when the suspension unloads completely. This makes me think it's suspension related but I've found no loose shocks, springs are tight, no loose body mounts, or anything that looks like it's moving. I have all new tie rod ends, draglink ends, and balljoints. The steering box is pretty sloppy. It isn't leaking yet but it's more sloppy than my Dad's at 200,000 miles and mine hasn't reached 100,000 yet. It needs to be replaced but if I replace it the winch fund will get another dent put in it. Any experiences/ideas? Update: I've checked all around the steering box and crossmember for evidence of cracks with a flashlight and a pick. One crossmember bolt looks like it might've moved once upon a time the way the rust has formed and the same goes for the the upper front steering box spacer. The steering box is really sloppy. I mean really sloppy. I can probably get 1/16th of a turn before the sector shaft even starts to move let alone turn. The slip part of the steering shaft used to be injected with nylon but I heated it up this Fall to get the steering column out and most of the nylon blew out. It's still tight. The joint up at the steering column has some play in it. The rag joint is tight. I checked all the bushings in the front springs by unloading the axle using the jack to lift up the frame. I checked the U-bolts at 120 ftlbs because I can't remember what they're supposed to be at. I checked all leaf packs for broken leaves. I checked all the swaybar crap which is all new. I checked the driver's side front cab mount to see if it's cracked by lifting up on the cab. It seems to be good. I checked the exhaust. I checked the front shocks. They move a little bit in the upper mounts if you really put some weight into it but not much. I checked the pinion nuts also. I checked the driver's side wheel bearings.