Differential Repairs Sydney

At PROTRUCK, we provide expert differential repairs and servicing for customers throughout Sydney and the surrounding areas. Our workshop supplies both new and reconditioned differential units to keep trucks, utes, and commercial fleets performing at their best.

With PROTRUCK, getting your differential fixed is straightforward from start to finish. Customers throughout Sydney and across Australia can send their unit directly to our fully equipped workshop in Fountaindale, NSW, and our team will handle the entire process with care and precision.


Our experienced technicians have decades of combined knowledge working across all makes and models. Using advanced diagnostic systems, precision tools, and a large stock of quality parts, we carry out everything from quick diff repairs to complete rebuilds with accuracy and reliability.


When the work is finished, your unit is shipped back without delay, restored to peak performance and backed by the trusted workmanship and service that define PROTRUCK across Australia.

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We offer the following:

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Scheduled servicing and preventative maintenance for differentials.

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Major and minor repairs, as well as full overhauls, carried out by our specialised team.

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Expertise across leading brands, including Meritor, Spicer, Volvo, Scania, Eaton, and Rockwell.

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A wide range of reconditioned and exchange units available, with popular Meritor models kept in stock for fast turnaround.

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Warranty provided on all reconditioned and exchange units for added peace of mind.

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Large inventory of specialised differential parts to support repairs and replacements.

How It Works

From Sydney and across Australia, organising differential repairs with PROTRUCK is quick and straightforward. Here’s how the process works:


Step 1

Get in touch

Call 02 4389 1877 or email our team to discuss your differential issue and the repair options available.


Step 2

Receive a quote

We’ll provide a detailed quote covering the repair or reconditioning work. Freight can be arranged by us or organised through your preferred carrier.

Step 3

Ship your unit

Send your differential to our Fountaindale workshop, where our technicians carry out every stage of the process using advanced equipment and genuine parts.

Step 4

Repair or reconditioning

Our specialists handle everything from basic diff repairs to complete rebuilds, restoring performance and reliability across all vehicle types.

Step 5

Fast return

Once the job’s complete, your unit is shipped back quickly to get your truck, ute, or heavy vehicle back on the road with minimal downtime.

Benefits of Differential Repairs & Servicing

Your vehicle’s differential works constantly to transfer power between the drive wheels, allowing smooth turns and stable handling even under heavy load. Keeping it serviced is critical for long-term performance, reliability, and safety, especially with the demands of Sydney’s driving conditions.

FAST, EFFICIENT DIFFERENTIAL REPAIRS AND SERVICING

Get in touch with PROTRUCK for professional differential repairs and servicing across Sydney. We offer fast and convenient solutions to keep your vehicle performing at its best and back on the road as quickly as possible.

Protruck opened its doors in 2003 with a mission

to deliver dependable repairs and preventative maintenance that keep vehicles operating safely and efficiently.

With decades of combined industry experience, our team brings genuine care and professionalism to every job. We see our customers as part of the PROTRUCK family, not just another booking.


Each truck, ute, or machine that comes through our workshop is treated with the same precision and attention we’d apply to our own equipment.


When you choose PROTRUCK, you’re choosing honest advice, reliable service, and workmanship built on consistency and quality. These are standards that have defined us for more than twenty years.

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Happy Clients

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Sydney Differential Services FAQs

  • How does PROTRUCK’s differential repair service work for Sydney customers?

    For Sydney customers, the process is straightforward. You can ship your differential directly to our Fountaindale workshop, where our skilled technicians inspect, repair, or recondition it using professional-grade tools and quality components. Once complete, your unit is promptly returned, helping you minimise downtime and keep your vehicle or machinery running reliably.

  • Can I ship my differential from anywhere in Australia?

    Yes. Many of our clients from Sydney and across the country send their differentials to our workshop for servicing and diff repairs. We can help arrange freight or work with your preferred carrier. This system makes it easy to access professional workmanship no matter where you’re based.

  • What types of vehicles can PROTRUCK's differential specialists handle?

    Our workshop handles a wide range of vehicles, from utes and cars to rear wheel drive vehicles, performance builds, heavy trucks, and trailers. We regularly work with operators in industries such as transport, logistics, and mining, where dependable driveline performance is essential.


    Our expertise also extends beyond differentials. We service manual and automatic transmissions, driveline components, and diff lockers, completing every job with the precision and consistency that PROTRUCK is known for.


    Our expertise also extends to diff conversions, allowing us to adapt or modify driveline setups across a wide range of vehicle types and configurations.

  • Do you stock an extensive range of reconditioned and exchange differentials?

    Yes. PROTRUCK supplies a complete range of reconditioned and exchange differentials, making it easy for Sydney drivers and businesses to get back on the road quickly. We keep a large selection of popular Meritor exchange units in stock for fast turnaround and also rebuild or source units from trusted names such as Spicer, Volvo, Scania, Eaton, and Rockwell. We can also perform diff conversions for customers who require driveline modifications or performance-based changes.

  • Is there a warranty on reconditioned or exchange units?

    Yes. All reconditioned and exchange differentials supplied by PROTRUCK are covered by a comprehensive warranty, giving you complete confidence in the quality of our workmanship and the reliability of the components we use.

  • Why is differential servicing so important?

    Your differential handles immense stress every time you drive, especially when cornering or hauling loads. Routine servicing helps maintain balance between the drive wheels, improves handling, extends tyre life, and prevents damage caused by contaminated or low differential oil.


    Even a simple fluid service can resolve overheating or burning smells caused by dirty or insufficient oil. Regular maintenance helps avoid costly repairs or premature failure, keeping your vehicle reliable and safe on Sydney roads.

  • How much does a differential repair or replacement cost?

    The total price can vary depending on the vehicle type, component condition, and the level of work required, including diff conversions or ratio adjustments where requested. The most accurate way to determine pricing is to request a quote from our team. We’ll assess your differential, explain your options clearly, and provide a transparent, detailed estimate before any work begins.

  • What are common signs of differential trouble?

    There are a few clear warning signs that your car or truck’s differential may need attention. Watch out for:


    • Whining or howling noises that change with speed or when turning, which can indicate worn diff gears.
    • Vibrations or shuddering through the chassis, often linked to imbalance or wear in the driveline.
    • Leaking fluid, usually caused by worn seals or gaskets.
    • A burning smell, which may suggest overheating or dirty oil inside the differential.

    At PROTRUCK, we specialise in repairing differentials for all vehicle types, and our helpful technicians can quickly identify the source of any issue. Don’t worry if you’re unsure. Just bring it to us before it becomes a costly repair, and we’ll get your vehicle running smoothly again.

  • Can you supply parts without carrying out the full repair?

    Yes. PROTRUCK offers an extensive range of high-quality components and differential services to support all types of repairs. We stock spare parts for diff repairs across light vehicles, 4WDs, and heavy trucks, including diff gears, seals, pinion bearings, and other hard-to-find items. Every component is selected for durability and performance.


    If you already have a trusted local mechanic, our team can assist by supplying the exact parts they need to complete the repair quickly and correctly.

  • Do you offer diff conversions?

    Yes. As part of our major and minor differential overhauls, PROTRUCK can also perform diff conversions for trucks, utes, and commercial vehicles. These conversions are carried out during full rebuilds or reconditioning work, allowing us to adapt gear ratios or modify driveline setups to suit specific performance or load requirements. Every conversion is completed with precision workmanship and tested for reliability before it leaves our workshop.

  • How do I choose a reliable differential specialist?

    When selecting a workshop, look for diff specialists with proven experience, transparency, and integrity. A reputable business will have verified reviews, trade certifications, and warranty-backed work that demonstrates consistency and trust. Comparing a few quotes also helps you understand pricing, inclusions, and the level of service offered.


    At PROTRUCK, we take pride in delivering quality products, expert workmanship, and prompt service. Our professional team brings precision, reliability, and genuine care to every job, making a real difference for customers who value long-term performance and dependable results.

  • Do you offer other services as well?

    Yes. In addition to our differential services, PROTRUCK’s professional team provides a wide range of mechanical and precision repair solutions for trucks, utes, and heavy vehicles. Our machine shop is equipped to handle component machining, fabrication, and rebuild work with precision and care, supporting everything from driveline repairs to performance upgrades.


    We also service and rebuild manual gearboxes, address driveline issues, and assist in diagnosing differential failure early to help prevent costly downtime. Every job is carried out with a focus on quality work, reliability, and long-term performance.

  • Do you handle other mechanical work too?

    Yes. PROTRUCK’s qualified mechanics and technicians perform a wide range of mechanical, hydraulic, and electrical services beyond standard repairs. Our capabilities include:


    • Wheel balancing and tyre puncture repair
    • Hydraulic system servicing and maintenance
    • Hydraulic hose replacement and PTO installation
    • Precision machining, welding, and fabrication
    • Auto electrical and air conditioning servicing and repairs

    All work is carried out in-house using professional tools and strict quality standards.

  • How do I get started with diff repairs and servicing in Sydney?

    It’s easy to get started with PROTRUCK. Simply call our team on 02 4389 1877 or send us an email, and we’ll guide you through each step of the process. We’ll explain how to prepare and ship your differential from Sydney to our main workshop and outline what to expect once it arrives.


    Our team makes the process straightforward and efficient, so whether you’re managing a fleet or maintaining a single vehicle, getting your diff repairs underway is quick, convenient, and handled with care from start to finish.

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A large gearbox is sitting on a table in a garage.
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Need to Know More Information?

Contact PROTRUCK for the best advice and services. Your vehicle is in good hands.