Locking arm system for a retention ramp of a lift gate

A method, comprising:

• maintaining a ramp of a lift gate in a selected position by engaging an elongated adjustable locking arm with a cam portion of the ramp, the locking arm including an adjustment mechanism for adjusting a length of the locking arm disposed on a proximal end of the locking arm for engaging a cam portion of the ramp;
• and
• increasing or decreasing the length of the locking arm by adjusting the adjustment mechanism at the proximal end of the locking arm.

The method of claim 20, wherein the locking arm is spring loaded by a spring having a biasing tension that urges a proximal end of the locking arm to pivotably engage with the cam portion to maintain the ramp in a selected position;

• and wherein the cam portion has multiple engagement surfaces for individually engaging with the locking arm, such that selective engagement of the locking arm with each engagement surface of the cam portion maintains the ramp in a selected position.