OVERVIEW ICON's 2011-UP Ford Super Duty U-bolt plate kit is required with the use of ICON's 5" lift rear leaf springs. DOWNLOAD ICON WARRANTY GUIDE ICON SUSPENSION WARRANTY ICON DYNAMICS SUSPENSION KITS for FORD SUPER DUTY (which include ICON 65501): ICON K93111 0-2.75" STAGE 1 SUSPENSION SYSTEM 2021+ FORD F150 4WD ICON K93112T 0-2.75" STAGE 2 SUSPENSION SYSTEM W TUBULAR UCA 2021+ FORD F150 4WD ICON K93112 0-2.75" STAGE 2 SUSPENSION SYSTEM W BILLET UCA 2021+ FORD F150 4WDICON SUSPENSION ICON K93113 0-2.75" STAGE 3 SUSPENSION SYSTEM W BILLET UCA 2021+ FORD F150 4WD ICON K93113T STAGE 3 SUSPENSION SYSTEM W TUBULAR UCA 0-2.75" 2021+ FORD F150 4WD