3 point harnesses in a vert?

[FScope]

I have modified the rear panels in my 68 conv to enclose 3 point seat belts from a LS1 camaro conv. I am using the seats from that car also which makes it easier because the rear seat is narrower than the original. here is a link to a picture in vbgarage- https://www.pro-touring.com/forum/vb...etimage&id=172