No, it's not some kind of mysterious truck tank -- you've just stood in the shadow of a heavy-duty dually truck. A dually, or a dual rear-wheel truck (DRW) if you prefer the official nomenclature ...

But for those planning to buy a dually truck for practical reasons, the following are some of the ones best regarded by their owners. Read more: A Quick Guide To GM's Ecotec3 5.3L V8 Engine ...