Go Rhino Dominator Xtreme DT Side Steps with Rocker Panel Mounting Bracket Kit Model DT4427TGo Rhino Dominator Xtreme DT Side Steps with Rocker Panel Mounting Bracket Kit Model DT4427T The Dominator Xtreme DT, or Dominator Tri Tube, features a triple bar design with full length outer and lower rub rails to give your vehicle a unique, aggressive appearance and increased protection for its body panels from trail obstacles and road debris. The main step platform is protected by a rugged outer rail that is buttressed underneath by the slider