What year truck? My 2006 has a hook attached to a thin piece of metal. As the actuator pulls on the hook it bends the metal, bulging it out towards the driver. the hook came loose on mine awhile back. I got it reattached and all has been well for a year now.
I thought the same. there is a plastic clip along the bottom of the back of the seat. Unhook that and you should be able to look up in there and see what u have. Mine actually had a clip broke that the hook attached to. I just hooked the hook right to the bracket where the clip broke at. works great.