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Outer Link Arm

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6. With the inner cam plate secured to the outer torsion bar, the next step was installing the outer link arm as shown here. Again, notice the way that the arm interfaces with the inner torsion bar. The flat side of the torsion bar creates a keyed method of attachment, enabling the up and down movement of the suspension to be transformed into rotational twist, opposed by the spring rate of the torsion bar connected in a similar manner on the other side of the vehicle. We think the simplicity of this design is clever.