Hi all I recall Clarence some years back had a few pictures of a rear should harness he had installed in his ? E with some custom brackets. I haven’t seen much more for retrofitting vintage and early J with rear should harnesses.    I’d love to be able to get some shoulder harness for the rear seats as the kiddos are growing and the little one is about to be out of her 5-point booster seat.    Has anyone used the rear bench’s lower  bushing where the lap belts click in with th