Making large openings even larger The new CR 522 E3 Cross Ram creates large openings almost anywhere, whether in water or on land. Designed to create additional space in situations where push points are more distant, (e.g., heavy vehicles and machinery, buses, large SUVs, etc.) this Ram retains its original spread force, even with the optional extension attached. By utilizing the optional extensions, you can achieve a maximum opening of 70.8 inches, enabling you to create larger openings without losing any power