Abstract: A safety or lock pin operatively engaged in a portion of the vehicle adjacent to the vehicle lift arm and coupled to the vehicle frame. The safety or lock pin is inserted into the portion associated with the vehicle frame so that the lift arm is prevented from lowering past the safety pin. A retaining pin is engageable in a bracket positioned adjacent the opening for the safety pin to retain the safety pin in its operative position. When in an inoperative position the safety pin is carried in a bracket secured to the vehicle frame and having an aperture through which the retainer pin passes to insure that the safety pin does not become lost during vehicle operation. Suitable safety chains couple the retaining pin to the safety pin, and the safety pin to the vehicle frame to insure that neither pin becomes separated or lost.