News

Close-up view of a semi-truck engine bay showing a fully installed clutch fan assembly, with the fan blades, fan clutch, and surrounding components clearly visible.
How Does a Clutch Fan Work on a Truck? (Plus Signs It’s Failing)

When your semi truck starts running hot or the AC struggles to cool at idle, the culprit might be something small but mission‑critical: the semi truck fan clutch in your cooling...

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Heavy-duty semi truck radiator with cooling fins highlighted in orange lighting
Top 5 Reasons Your Semi Truck Cooling System May Fail

When your rig's cooling system goes down, you're not just dealing with engine damage, you're staring down lost loads, roadside delays, and repair bills that can break a quarterly budget....

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Close-up of a semi-truck’s undercarriage showing a bright orange driveshaft connected between the transmission and rear axle, with dual rear tires visible on a paved surface.
How to Measure Driveshaft Length for Trucks

When it comes to replacing or customizing your truck drive shaft, getting the length right is mission-critical. An improperly sized driveshaft can cause vibration, premature wear, or even catastrophic failure. Whether...

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Close-up of a truck steering system in a clean shop setting, showing the orange-painted steering gearbox, pitman arm, and drag link connected to the black chassis frame.
Understanding the Steering System in Trucks: How It Works

When it comes to commercial vehicle safety and control, few systems are as vital, or as misunderstood, as the steering system in trucks. Unlike their automotive counterparts, truck steering systems are...

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Close-up view of a heavy-duty truck suspension system featuring FleetsWorld’s signature orange leaf spring and black air springs mounted on a steel frame.
Best Heavy-Duty Truck Suspension Types for Performance

Imagine a fully loaded semi navigating a tight corner on a cracked, uneven road. Without the right suspension system components in place, the load and the driver could be in...

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Close-up of a heavy-duty truck rear suspension system with bright orange shocks, leaf spring mounts, and axle housing, highlighting upgraded shock components.
Different Types of Shocks for Trucks: Which Is Best for You?

When your truck’s suspension isn’t cutting it, whether you’re feeling every bump or noticing poor control, it might be time to explore the different types of shocks for trucks. From daily...

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Close-up of an orange truck slack adjuster installed on a heavy-duty axle.
What Are Slack Adjusters? A Guide to Brake System Safety

Fleet safety starts where the brakes meet the road. Slack adjusters may be small components in an air brake system, but they play a crucial role in maintaining consistent stopping...

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Close-up view of a Power Take-Off (PTO) unit mounted on a truck transmission, with visible hydraulic hoses and chassis components.
What Is a PTO on a Truck and How Does It Work?

If you've ever watched a dump truck raise its bed or seen a tanker unload without the engine revving wildly, you’ve seen a PTO quietly doing its job. A power...

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Close-up of a heavy-duty truck’s air brake system showing coiled black service and emergency brake hoses connected to color-coded couplings on an orange cab.
5 Main Parts of a Truck Air Brake System and Their Functions

Fleet safety isn’t just about driver behavior or vehicle spec; it’s about what happens when a loaded rig needs to stop fast. The truck air brake system is one of the most...

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Side-by-side comparison of a blue Kenworth W900 and a red Peterbilt 589 parked in an industrial warehouse lot, showcasing their long-hood designs, chrome stacks, and premium styling for heavy-duty semi-truck buyers.
Kenworth vs Peterbilt: Key Differences & Best Choice (2025)

In the world of semi-trucks, few rivalries run deeper than Kenworth vs Peterbilt. Both brands carry a legacy built on durability, performance, and pride, and both sit under the PACCAR...

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