Seat repair?

[Nate]

I'm wandering if anybody can help me with repairing my seats?
Its mainly the back seat, when I sit on it, it REALLY sinks down, and theres a crunchy feeling in the seat. Its as iff theres a band of styrafoam in the seat, that is complealy decomposed. I read diesel gients write up, but it didnt give me the info I needed unless broken springs can cause it to be "crunchy"
It's the bottom section of the rear seat which is having problems. Both sides.

I'll be removing the seat tonight, and setting it in my room so its easier to work with (bit nippy out right now)

Can somebody help me? I have absolutly no idea as what to do, other then try and grab a seat out of the junkyard if its good... Which wont match anyways (grr)


So if anybody has any tips, please let me know
Thanks alot, I really appreciate it
~Nate