JD 3320 Seat Suspension question for someone who owns a 3320

[pokerboy57]

The seat suspension on my 14 year old 3320 seems to have had a nut come loose. The 2 pictures in the attached PDF file show the front and rear view under the seat in the middle of the seat suspension. You can see a threaded pin with a rubber grommet and the nut missing on the open end. The pin is on an angle because it isn't through the hole of the other side of the bracket. My question is very simple. Does the pin and the rubber grommet just go through the hole on the other side (you can see the hole) of the top bracket? Or does the pin connect the top bracket to the lower part of the seat suspension. I'm pretty sure it only goes through the hole to the top bracket and the grommet rides on the top of the lower part . If one of you who owns a 3320 could take a look an report back I would appreciate it very much.

Thank you to all you Veterans this memorial day weekend.