Rocker Guard / Stock Fenders / Nerf / OE Letters SKU : LJRGSNO $546.23 LJ bolt on Rocker Guard with Overkill Engineering Cutout and with nerf and used with stock fender. Rocker Guard is CNC laser cut and CNC break out of 3/16 steel well the nerf is 1.5 x .120 wall tubing that is welded to the rocker.