What are the holes in truck frame rails used for?

Mounting components and running wires.

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  1. Holding the tires
  2. Mounting components and running wires ✔
  3. Making the truck lighter

Why: Rail holes are used for mounting components, running wires and hoses, or measuring rail orientation.

Huh, didn't know that: Rail holes are used for mounting components, running wires and hoses, or measuring rail orientation.

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References

Answer: Mounting components and running wires. Rail holes are used for mounting components, running wires and hoses, or measuring rail orientation.

  1. Truck en.wikipedia.org/wiki/Truck
    The holes in rails are used either for mounting vehicle components and running wires and hoses
    Checked 2026-11-07.

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