Just to follow up on things, I ended up seeking some professional help and had the truck towed to a local off-road shop. A laundry list of crazy was happening.
The wheel spacers I have (1") weren't wide enough to bottom out the attachment nuts of the stock lugs. They had loosened and everything else had began to come loose as well. They said they took off the wheel lugs with their fingers. They ground down the stock lugs a bit to get them to snug properly.
The steering bar had loosened up from the ends rubbing on the radius arms and that resulted in 6* of toe-in or camber. I knew something looked off there. I believe factory spec is around 1*, but I may be off on that.
Offset bushings were pressed into the rear mounts on the radius arms. Was told it had little effect, but every little bit helps right?
The shop wasn't comfortable bending the steering arms for liability reasons, so we went with grinding down the radius arms instead. I haven't had a chance to test the flex yet, but the shop said the front on either side will go ~4 ft in the air with the forklift before a rear comes up and the steering just makes contact there.
Took the advice of @Tools R Us and moved the bump extensions to the axle side and mounted the stock bump stops up top. No more rubbing and clanging over bumps. Super happy.
I asked them to test the stuff on the tires to the body, but I think the springs are still too new and they won't compress enough to even hit the bump stops or put the tires up to the fenders. Just want to drive it for a bit now and have some fun with it.
Almost forgot ... the u-joints quit and ended up eating the top side of the driveshaft too. Thanks to
@beno for being the man and getting those parts out to me right away.
Thanks to
@brian for the help getting the replacement front shaft. Always helps when a local cruiser friend has a parts truck hanging around.