I've just started the process of recovering my 3100 truck seat and thought i'd post a couple of pics. I'm pretty sure it's all original. After removing the seat cover which I had to cut away at the frame since hog rings were not used.
[IMG]http://pic100.picturetrail.com/VOL1061/3611363/23691035/395103972.jpg[/IMG] I found some soft padding over some jute straw packing and a burlap layer with cord on the edges.
[IMG]http://pic100.picturetrail.com/VOL1061/3611363/23691035/395103962.jpg[/IMG]
Then I found 4 rows of burlap running vertically between the rows of coil springs. They had 4 1/4 inch diameter springs running through the top and attached to the coils by hog rings and had 4 thin stiff wire running through the bottom attached at either end by wrapping the wire tightly to the end coils.
[IMG]http://pic100.picturetrail.com/VOL1061/3611363/23691035/395103970.jpg[/IMG]
I don't know the purpose except as a sound deadner and coil alignment.Thought it was interesting though. My frame is in good shape except for one corner.
[IMG]http://pic100.picturetrail.com/VOL1061/3611363/23691035/395103974.jpg[/IMG]
If anyone has a suggestion on how to repair that, let me know. the Tech Tips has some info.

Last edited by DrewP; 03/15/2011 8:34 PM.

Drew