Today was the first day actually getting to drive long distance in my 06 6.0, when I reach 60+ the whole truck bounces and bucks. It's so bad that I felt sick after 15 minutes, can anyone help me figure out what's wrong?

Replacing shocks with Bilstein 5100's. Bought the truck used and not sure what size lift is on the truck. I am unsure as to which length suspension to purchase ( 0-2",0-2.5", 4", or 6"). Currently have 325/60/20 tires. Pictures included.

Ok, so I want to do a dual front shock setup on my 2010 with an 8" lift. I have a ProComp lift so I want to go with the ProComp mounting bracket. However; it's not sold with shocks. I want to go with the Bilstein 5165 shocks. I know they will need to be custom valved. The problem comes at, I...

i recently put some heavier srings under the front of my 2wd cc/lb 350, now the back sits about 2" lower than the front, so if anyone has some blocks or knows where i can get some please let me know, thanks!