Truck 801

Suspension and Steering Under Load

Load and towing wear suspension and steering components differently than an empty truck driven around town.

Suspension and steering components on a truck that regularly carries weight or tows a trailer are working harder than the same parts on a truck driven light and empty, and that shows up as faster wear on bushings, ball joints, tie rods and steering components. Because there is no dashboard light for 'the suspension is wearing faster than expected,' this tends to be diagnosed by feel — a wander at highway speed, a clunk over bumps that only shows up loaded, a pull that appears with a trailer behind the truck and disappears without one.

Diagnosing which component is responsible takes a physical inspection rather than a guess, and getting it right matters more on a truck than on a passenger car, since a suspension or steering problem under load is also a stability and control problem while towing. That inspection should account for how the truck is actually used, not just how it looks sitting still in a bay.

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