A locking pin assembly for securing a ground engaging element to a support structure may include a body portion and may include a shaft portion disposed within the body portion and rotatable between a first position that mechanically inhibits removal of a ground engaging element from a support structure and a second position that permits removal of the ground engaging element from the support structure. A camshaft may be rotatably disposed within the shaft portion and may be arranged to cooperate with the shaft portion to rotate through a first range of motion and to apply a rotational force on the shaft portion through a second range of motion. A radially extending locking element may be configured to selectively mechanically interfere with one of the shaft portion and the body portion to selectively prevent rotation of the shaft portion relative to the body portion.