While looking for information re tire size and wheelbase of WW1 vehicles (hint hint; how about sending me those for your vehicles!!) I came across a couple of series that some of you might find of interest. The first is in Automobile Engineering, Vol 8, entitled Military Transport Chassis. Included are reports on the Commer 3-ton, the Dennis 3 ton, FWD 3 ton, Locomobile 3-4 ton, Maudslay A chassis, Peerless 3-ton, Pierce Arrow 3-ton, Saurer 5-ton, and Thornycroft J.
The second is a five or six article series re captured German trucks by LtCol Arthur J Slade, US Army and can be found in Automotive Industries, Vol 41. Included are subjects such as axles, frames, drives, et cetera.
Both have considerable information and can be downloaded via HathiTrust.Org.
Bosun Al