YJ, TJ, LJ Torsion Rubber Bomb Proof M.M with I" Lift Torsion Rubber Style Bomb Proof M.M JM600L Jeep YJ/XJ/ and TJ Wrangler vehicles equipped with 6CYLINDER engines (4.0L or 4.2L)and a 1" Body Lift. These mounts will lift the engine 1". These new style mounts utilize a Torsion rubber bushing that absorbs vibration better then polyurethane. 10x6x4