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Originally Posted by shakran
and there is a full - the trailers with wheels on each end that's pulled behind the semi trailer in 2 trailer setups. They're also called pups.
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They are called Lead and Pup(They come woith 2 or 3 axles between them(the ones I load at work have 2 Axles....maybe thats why the trailers keep tipping)), or "B" Trains(they have 3 axles in between with the front trailer longer then the back(most of the time)) or even "A" Trains(Both trailers are thesame size, and mostly boxes.with just one axle between them).