Abstract: This invention relates to a harness anchorage reinforcement for a conversion van having a bay window. A harness reinforcement beam extends along the underside of the upper roof rail of the van from the driver's door post to the second forwardmost vertical side wall column. Upward extending tabs on the beam are engaged to the receptor plate of a harness retractor assembly, and to the upper roof rail, and to reinforcing back plates on the roof rail.