Steve,

My 66 just folds forward, no locking mechanism. There's one bolt at the tip of the bracket coming down from the back of the seat. As you lay it back, it rests on adjustable stops sticking up from the bottom of the seat frame. You are welcome to come over and look at mine to get an idea or I can send a pic.

Rance


66 C10 FS/LB 292/4-spd manual (I also enjoy Hang Gliding)
I'm too sexy for my hair, that's why it isn't there