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To haul heavy loads, there needs to be more wheels to carry the loads.

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Weight distribution over the road surface.

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Q: Why does a truck have four or more rear wheels?
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What is a Dooley pickup truck?

A pickup truck with four rear wheels on one rear axle would be considered a "dually".


Why are the rear wheels of a truck more broaden as compared to front wheels?

They are broader for better traction.


What is differential in pickup trucks?

The differential, often referred to as the "rear", is the gear housing which transmits the rotation of the driveshaft to the rear wheels. A four-wheel drive truck also has a differential for the front wheels.


Why are the rear wheels of a truck broader as cpompared to the front wheels?

Because they not only need to support the weight of the truck itself - but also the load the truck is carrying.


What is a 2x4 truck?

a 2x4 truck has 4 wheels and uses 2 of them to drive (usually rear)


What does drivetrain mean in a truck?

The drivetrain of a truck would be all the components from the engine to the rear drive wheels.


What causes your rear wheels to lock up?

does you truck have drum brakes in the back


Do you need to balance the rear wheels?

Yes. All four wheels need to be balanced.


How many wheels a truck has?

A truck has one front axle and one or more rear axles which typically have dual wheels on each side.Common configuration: one rear axle - 6 wheelerSo apart from the steering wheel Caterpillar 797- B (biggest dump truck in the world) has 6 14 foot tires and the Australian centipede has 30 wheelsHouse movers and heavy equipment moving trucks alter their wheel configuration depending on the load. For heavy load they can apply 40 or even more wheels.


Is it a dooley truck or dually truck?

Dually, slang for having two wheels and each side on a single rear axle.


Why won't my truck go into four wheel drive?

Check the drive train. It might have been designed to run on two wheels instead. Either rear or front wheeled.


What is the difference between a 4x2 and a 4x4 truck?

A 4x2 vehicle has 4 wheels with the 2 rear wheels that drive. A 4x4 vehicle has 4 wheels with all 4 wheels that drive.