Hi, my 2003 4x4 Limited Excursion has 270,000 miles...just breaking it in. My question is I'm purchasing new Bilstein shocks. Are the appropriate ones B8 5100? I put heavier springs all around the lift doesn't seem more than 2".Leaf Spring X Code (Front - 2 Leaves) 250SD, F350SD 2wd 4wd -...