rear reclining seat latch
 

I have a 1969 C10 Suburban, it has split rear seats, the seat bottoms fold up and the seat back folds down into the floor.. it is like a 70/30 - 60/40. I am looking for the rear brackets/latches that mount on inner sidewall to prevent the seats from reclining way back and floppin around.
I cannot seem to find these brackets, can anyone help me out?