Fellow Vanagon mailing list member Stuart M asked me to make some sockets to affix to the westy rear seat so that the stock plastic insets could be fitted and then spread rests installed. I think there was a factory part made to do this, and I believe it involved cutting out a little of the plywood in the seat back. Also , some folk made steel tube versions of what I did. I believe ther is a Samba thread on that, yes there is, it’s here. As I work mostly with aluminum, I made a couple of pairs out that wonderful metal 🙂
I don’t know if you can make it out, but the slots on the top of the tube are of different width. That’s because the plastic socket has two rails down each side and the rails are different width. And i suppose its obvious that with this hack you have to sand off most of the plastic rails leaving just a little bit to engage the slots.
shooftie 