Yes it's an off-highway size truck. 14.00x25 tires. It looks like this truck might have Clark BD91000 rears so the track width would be around 100". Most of the ones they built for around here had bigger rears than that(probably 106" track). They started out building them as logging trucks but they also made a few for coal mining. I think the coal mining trucks might have had 18.00x25 tires and V12 power. The other brands that made off-highway logging trucks here used 16" frame rails but these trucks were either 18" or 20". They ended up building the trucks so heavy that most loggers didn't like them. The roads can only hold so much weight and the other trucks were built heavy enough already to not have many mechanical issues. Having a heavier truck for no reason was just harder on fuel and brakes.lol
Check this thread out...
http://www.heavyequipmentforums.com/...logging-trucks