To haul heavy loads, there needs to be more wheels to carry the loads.
Weight distribution over the road surface.
A pickup truck with four rear wheels on one rear axle would be considered a "dually".
They are broader for better traction.
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.
Because they not only need to support the weight of the truck itself - but also the load the truck is carrying.
a 2x4 truck has 4 wheels and uses 2 of them to drive (usually rear)
The drivetrain of a truck would be all the components from the engine to the rear drive wheels.
does you truck have drum brakes in the back
Yes. All four wheels need to be balanced.
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.
Dually, slang for having two wheels and each side on a single rear axle.
Check the drive train. It might have been designed to run on two wheels instead. Either rear or front wheeled.
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.