Id imagine you pop the hook off and put the bushing where the hook rides. The tech that did mine bloodied his hands... I have a new seatback and the tsb done and its even worse now. Plus the seams of the upholstry are fraying from the stretching when he removed/installed it.
With the seat stripped to the bare metal frame, I dont see how the bushings would be hard to put on. Can you post a pic or two?