A shoulder kit assembly for a crash test dummy includes a spine interface member for attachment to a spine of the crash test dummy and a scapula for attachment to the spine interface member. The shoulder kit assembly includes a load cell for attachment to the spine interface member for measuring load in a plurality of axes on a shoulder joint and an upper arm assembly having an arm bone made of a plastic material for operative attachment to the scapula. In addition, the shoulder kit assembly also includes a two axis rotational shoulder joint, a relatively soft molded flesh around the plastic arm bone, and provisions for two accelerometers at the shoulder and at the neck T1 location.