There are NINE parts catalog pages for these springs. mikeo0o0o0 has the 1973/79 Ford Light Truck (100/500) Parts Catalog on a C/D (available from hipoparts.com).

JEFFFAFA is using this catalog on Ford microfiche slides, cannot post pics. I also have the Ford microfiche catalog, but also have the C/D catalog...use it to post pics.

So...here are the 9 pages, happy reading!

 

Thank you Number Dummy, that's quite a list. I'm curious to know why the coil wire diameters are generally thinner on the LH side (drivers side in USA) ? any idea why ? I would have thought that the drivers side front coil spring would be slightly stiffer because of more regular single person use.
Kind Regards