2001 F350 4x4 diesel. It developed a high frequency shake at 35 and 60 yesterday. I checked the hub, did the rest while I was in there. I drove it before and after the hub change, then after the ujoint. Ujoint fixed the shake
I wonder if they are 12 mm 12 point like the 1/2 and 3/4 tons. I have a swivel impact socket just for those, and they arent coming out easy without heat. They use some crazy thread lock compound