Never knew about this before
http://retrorides.proboards.com/thread/97382/wheel-drive-overland-train-madness
Cheers
Jim
Funny came across this myself a week or so ago ........ Was researching LeTournea pan scrapers.
Mr LeTournea was a superb & practical engineer, basically invented & built the first models of nearly every piece of earth moving and construction equipment we now use...........believe he had more patients registered than any other individual