This is the rear-wheel setup on one of the owner's large tow trucks. The owner and his mechanic used this chassis, which is from a cement mixer, and put a tow boom on it, creating their own heavy-duty tow truck. And they used other tow trucks to do their heavy lifting for them when they assembled it. Interesting.
http://caseyleedesjardin.com
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2013_feb_rachel_hazel_hot_wheels_1
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2013 KC World Of Wheels  0133 - Version 2
Row of Wheels High Rez Sopris Sunrise CRR 061
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2013 KC World Of Wheels  0035 - Version 2
2013 KC World Of Wheels 0035 - Version 2
2013 KC World Of Wheels  0035 - Version 2
2013 KC World Of Wheels 0035 - Version 2
See photo in original gallery.