Position-biased locking pin assembly for a ground engaging wear member

A locking pin assembly (106) for securing a wear member to a support structure may include a body portion (110) and may include a shaft member (112) partially disposed within and extending from the body portion and rotatable between a first position that mechanically inhibits removal of a ground engaging member from a support structure and a second position that permits removal of the ground engaging member from the support structure. A wear member (104) for receiving a locking pin assembly (106) may include a bore (160) extending laterally through the bore member with a proximal opening and a distal opening, an installation ramp (182) and a removal ramp (184) may be disposed at the proximal opening for engaging a tang (126) of a shaft member (112) of the locking pin assembly (106).