Valiant convertible driver seat issue

Why does my drivers seat want to flop back into a reclined position? If I flop into the seat too hard or push back too hard, the seat falls backwards.
Is there something amiss with the pin in the center? I tried bending the tab the pin is on, bending the corresponding tab in the seat back, shimming the outside of the seat inwards, etc.
Is something bent, broken or missing? The outer part looks just like the passenger side. Would building up the rub strip help?...

Valiant convertible driver seat issue
Author: admin