Truck walks while driving

[HvyChevy454]

For some reason all of a sudden my truck tends to walk left and right while driving. I know the driverside front has too much camber and no more room to adjust it, still havent gotten that sorted out, but it feels like the steering is loose, but it doesnt feel loose when parked.
Also the back end does it too. i have a 2.5'' block drop in the back. But when i changed lanes it feels like the rearend breaks loose or wiggles back and forth.
Finally at about 50 the steering wheel starts to vibrate noticeably.

Whats happening to my truck? All this started all of a sudden about a month ago.