Front end shimmy

I went out in a snow storm and got a lot of ice on my suspension as one would except but with it frozen front end shimmied hard at 65, it went away when it got warmer also the rear rattles bad when it is frozen, any suggestions other than stay home when it is cold I have never experienced this on another truck

 

Same here. Happened after the snow storm. Rattles when you turn and hit potholes. Anyone knows the best way to get rid of the ice or usual location of ice build up? Pretty annoying and don't want to wait for a warm day for it to melt. Can't really see it without lifting the truck.