[gordon]

Interesting early truck with GMC sign, short wheelbase prime mover version too

Double front wheels with traction devices and overall tracks never got much further than training videos I think. Excellent off-road, but completely useless about 15mph and taking far too much time and effort to fit and remove.

I've seen one or two GMC photos on beaches or sand with dual fronts, but then you can see the additional front tyres are bald, or even a smaller diameter, so that the running surface is not in contact with the ground once on hard going.