M.O.R.E. JM600 Torsion Rubber Style Bomb Proof M.M Torsion Rubber Style Bomb Proof M.M JM600 Jeep YJ/XJ/ and TJ Wrangler vehicles equipped with 6CYLINDER engines (4.0L or 4.2L). These new style mounts utilize a Torsion rubber bushing that absorbs vibration better then polyurethane. 6x6x4