My 64 NL320 has its original seat and upholstery, so I made some measurements for the archives.
This pattern and measurements are for a 64 NL320.
The L320 model for the same year had a different seat pattern and it appears from the parts catalogs
and brochures that the seat pattern was changed every year. The material is heavy vinyl.
As to colors, the main seat pleats were typically the same color as the truck. The edge bolsters were a lighter shade of the same color or white where more appropriate. However, we've seen several examples where the main seat pleats are a darker or contrasting shade, while the outer bolsters match the truck color.
This hold true for the door panels as well. The full width pocket was the same color as the truck and the panel was a lighter color or white. However, in some examples, such as the Bamboo and Grey painted trucks, the door panel is the same color as the truck, and the pocket is a contrasting color.
For the 64 NL320 seat the pleats are horizontal and only 2" wide and 13" long. The center bolster is 7.5" long. There are 10 2" pleats on the flat back and seat surface with more over the top and bottom.
The side bolsters on the seat back are tapered from 2" to about 4.5". The seat bottom side bolsters are
tapered from about 3 to 5".
The NL seats are different than the L seats. The bottom frame where the sliders mount is different. The slider studs are about 1/2" closer and the floor pedestals are different.
The rough door panel pictured is from an L320 but illustrates the common measurements.
The pocket is the full width of the panel, 6" deep with a snap about 8" from the front.
There is a small piece of elastic stitched along the top of the pocket.
There are 3 lines embossed in the panel vinyl about 6" down from the top. The lines are about 1 5/8" apart.
