the sky jacker kit is a level with an add a leaf.. the RCX is a lift kit.. the RCX will correct all the wear out parts angles and last forever... i would replace your rear shocks with either choice depending on how many miles on you truck.. you do not have to relocate anything with the sky jacker leveling kit with add a leaf.. good luck
08 FX4... Flowmaster Exhaust, line-X, Sky Jacker leveling kit. 295/65/20 Nitto trails mounted on 20 X 9 Carroll Shelby wheels. AIRAID CAI. Harley headlamps and LED Tails & 3rd brake lights,custom upper and lower Grill. Edge Evolution. Interior/Exterior LED lighting, NFAB step bars, America Tri-fold Tonneau cover.