Is my 87' stock seat supposed to latch?

[92470]

I have a 1987 V10 Silverado with the stock seat in it. Right now, I can grab the back and it just folds forward. Was it originally supposed to latch and release with the pull up lever like most trucks? If I pull the seat forward, I can see a thin metal "lever" on both sides that rotates on the seat hinge. They are both rotated so they are "sitting" toward the bottom of the seat and if they are not a latch, I don't know the purpose of them is. I was just wondering if somehow they got disengaged from the seat and fell down.

Any advice? Thanks