Abstract: A guide (34a) for seat belt webbing (16) in a vehicle (14) includes a support member (50) that includes an elongated slot (88) through which the seat belt webbing (16) extends. A curved surface (90) defines a portion of the elongated slot (88). The guide (34a) also includes an insert (110) that is adapted to be received in the elongated slot (88) of the support member (50) and that includes a webbing guide portion (112) for guiding the seat belt webbing (16) through the elongated slot (88). The webbing guide portion (112), during normal operating conditions, is spaced apart from the curved surface (90) of the support member (50). The webbing guide portion (112) of the insert (110), when subjected to a load from the seat belt webbing (16) that exceeds a predetermined amount, moves into engagement with and conforms to the curved surface (90) of the support member (50).