King of the Highway: The Ultimate Big Rig & Semi-Truck Operations Challenge

Why do truck drivers slide the tandem axles on their semi-trailers?

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Correct!

Incorrect!

Sliding the trailer tandems forwards or backwards redistributes the weight balance of the cargo load between the drive axles and the trailer axles. Doing this allows compliance with federal/state Bridge weight laws on highways.

Why do truck drivers slide the tandem axles on their semi-trailers?

To adjust cargo weight over the axles

To increase top aerodynamic speed

To raise the ground clearance of the frame

To align the trailer to narrow docks

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