HAHA! I'm good now, thanks for the prompt.
Interesting re-packs for several reasons.
First of all, see that Preservation, Method I? Cosmolene!

If you haven't opened those yet, they will be soaked in sticky dry cosmo and maybe cheesecloth.
Is photo 1 the end of one of the boxes you're showing the tops of in photos 2 & 3?
Here's the reason I ask.
Even if the box in the first photo wasn't dated, it could be dated to the 50's by the 11-digit FSN and the "57" embedded in the contract number. Very cool that the parts (we'll get to those in a second...) were made by Henley Filson. They were a still somewhat mystifying mfgr, making everything from wrenches to sapper blasting cap pliers to, apparently, bolts for bogie springs. That got my attention, as did the "-G179" suffix on the 11-digit FSN.
All Army parts during WWII and well into KW were classified by Standard Nomenclature List (SNL) categories. "G" was for motor vehicles. Willys and Ford 1/4 ton 4x4 trucks ("Jeeps") were G503. Dodge 1/2 ton 4x4 trucks ("WC") were G505. GMC 2-1/2 ton 6x6 DUKW amphibious trucks ("Ducks") were G508. Just for some context.
G179 was the famous Weasel, a small tracked vehicle made by Studebaker in WWII and the Korean War. Originally designed for snow, for use by Allied special forces in Scandinavian countries, it was put to wider used as an all-terrain (think mud) version of the jeep in the ETO, PTO, and later in Korea. And it definitely would have had a bogie type suspension, like tanks, like railroad cars.
Do tractor-trailers have bogie spring type suspensions?
The other photos are showing lengthwise boxes stamped "REO" (for Randsom E Olds Motor Car Company). REO made a crapton of M35 2-1/2 ton (the famous "Deuce-and-a-half") 6x6 tractor-trailer trucks during WWII and the Korea War. And lo and behold, the boxes are also stamped G742, which was the SNL supply category for deuces in the 50's.
So, if photo 1 is the end of the boxes in photo 2 and 3, it's a bit of a headscratcher.