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What are spacers on a semi truck?

Wheel spacers are metal discs that are installed between the wheel and the hub of a semi truck. They serve several purposes:

* To increase the track width of the truck. This can improve stability and handling, especially when the truck is carrying a heavy load.

* To clear obstacles. Wheel spacers can be used to clear obstacles such as brake calipers or suspension components.

* To adapt different wheel types to a truck. Wheel spacers can be used to adapt wheels with a different bolt pattern or offset to a truck.

Wheel spacers are typically made of steel or aluminum and are available in a variety of thicknesses. They are installed by removing the lug nuts that hold the wheel in place, sliding the spacer onto the hub, and then reinstalling the lug nuts.

It is important to note that wheel spacers can affect the handling of a truck, so it is important to choose the right spacer for the application. If you are not sure what size spacer you need, you should consult with a qualified mechanic.