[Lona]

1. There is no way a shoulder belt attached to a wood pillar or even to a piece of steel recessed into a wood pillar will not tear out even in a slow speed front end collision.

2. Mounting a shoulder belt to the floor directly behind the seat is a bad idea. In a frontal collision, your body will violently move forward, forcing the shoulder belt downward with a force enough to crush your spine. With no suitably strong door pillar in our cars, the best location in a tudor or four door sedan is at the floor behind the rear seat. In a coupe or roadster, the attachment point would be horizontal from the top of the seat back into the trunk or rumble seat compartment.

I have installed shoulder belts in three of my antique cars with documentation and photos on this forum. I do not know how to post a link to them but using the search function, you should be able to access the posts if interested.

Glen