Go Rhino Dominator Xtreme DSS Running boards with Rocker Panel Mounting Kit For Double Cab only Model DSS4435TGo Rhino Dominator Xtreme DSS Side Steps with Rocker Panel Mounting Kit For Double Cab only Model DSS4435T The Go Rhino Dominator DSS Slider Step features a cab length body mount slider design on the bottom surface and a flat, punched steel step plate for a safe, no slip grip. A two bar design with outer rub rail gives it both a unique, aggressive appearance and increased protection for your vehicles body panels from trail obstacles and road debris.