FZCSREY02

Overview

The FONZON 36T Full Metal Centre Diff Set is a premium upgrade component engineered for precision and built to handle the most demanding RC conditions. Blending high-strength powder metallurgy with precision CNC-machining, this centre differential delivers smooth power transfer and consistent durability under extreme conditions. Whether you're upgrading your Losi Baja Rey for improved performance or building a competition-ready RC car from the ground up, this is a dependable solution engineered for serious RC enthusiasts across the UK.

Designed specifically for performance-focused RC builders, the FONZON centre differential arrives factory pre-assembled and pre-filled with differential oil, making installation straightforward and hassle-free. This is not a beginner's component in the sense that it requires knowledge of your existing setup, but rather a professional-grade upgrade that demands respect from experienced modellers who understand centre differential tuning and the role it plays in handling and traction control. If you're looking to upgrade the centre diff on your 1/10 Losi REY platform RC vehicle, this is the upgrade that will transform how your model handles on both smooth tarmac and rough terrain.

For RC enthusiasts in the UK seeking to elevate their Losi Baja Rey to competition standards, the FONZON centre differential represents an investment in quality engineering and long-term reliability. The materials, construction methods, and attention to detail evident in this component will serve you well whether you're tackling challenging off-road terrain, competing in organised racing events, or simply enjoying weekend bashing sessions with friends.

Key Features

• Powder Metallurgy Planetary Gears — The planetary gears are manufactured using powder metallurgy techniques, which creates incredibly strong, compact gears with superior density compared to traditional casting methods. This means your differential can handle higher torque loads without stripping or wearing prematurely, making it ideal for aggressive driving and competition use.
• 7075-T6 Aluminium Alloy Centre Housing — The centre housing is crafted from aerospace-grade 7075-T6 aluminium alloy, one of the strongest aluminium alloys available. This material provides exceptional strength-to-weight ratio, ensuring your differential remains lightweight whilst offering the rigid structure needed for precise gear mesh alignment and consistent performance under load.
• CNC-Machined Nickel-Chromium Alloy Steel Ring Gear — The ring gear is precision-machined from nickel-chromium alloy steel (steel makeup #4340), a premium material known for outstanding durability and resistance to wear. CNC-machining ensures perfect tolerances and optimal gear mesh, which translates to smoother power delivery, reduced backlash, and longer component life even under racing conditions.
• Nickel-Chromium Alloy Steel Drive Cups — The drive cups utilise the same premium nickel-chromium alloy steel (steel makeup #4340) as the ring gear, ensuring consistent material properties throughout the differential assembly. These cups are engineered to distribute loads evenly and resist deformation during hard acceleration and cornering, maintaining proper alignment and performance lap after lap.
• Grade 12.9 Titanium-Coated Screws — Every fastener used in this differential is a Grade 12.9 gold-coloured screw with titanium coating for superior corrosion resistance. These high-strength fasteners will not vibrate loose or corrode from exposure to moisture, dirt, and road salt — critical for maintaining the integrity of your differential over time, especially in the challenging UK climate.
• Factory Pre-Assembled Differential — This centre diff arrives completely assembled from the factory, meaning you don't need to disassemble, clean, or rebuild it before installation. Simply remove it from the box and install it into your Losi Baja Rey centre differential mount. This saves you time and eliminates the risk of improper assembly that could affect performance.
• Factory Pre-Filled with 100K cSt Differential Oil — The differential comes pre-filled with premium 100K cSt differential oil, which provides the perfect balance of friction modulation and power delivery for the Losi REY platform straight out of the box. The viscosity is specifically chosen to deliver smooth, predictable handling characteristics without requiring you to source and fill your own oil.

Technical Performance

The FONZON 36T Full Metal Centre Diff represents the pinnacle of centre differential engineering for 1/10 scale RC vehicles. Every material selection and manufacturing process has been carefully considered to deliver superior performance, durability, and reliability. The combination of powder-metallurgy planetary gears and precision CNC-machined steel components ensures that torque is distributed evenly and smoothly to both sides of your vehicle, giving you the traction and handling characteristics that separate competitive drivers from casual enthusiasts.

The 7075-T6 aluminium housing keeps weight to a minimum whilst providing the rigid structure essential for maintaining proper gear mesh alignment under the stresses of hard cornering, acceleration, and deceleration. The nickel-chromium alloy steel ring gear and drive cups are engineered to withstand repeated shock loads and high-speed impacts without developing play or backlash — two of the most common failure modes in lower-quality differentials. The 36-tooth configuration is optimised for the Losi Baja Rey's drivetrain geometry, delivering smooth power delivery across a wide range of driving conditions from tight technical courses to open, high-speed terrain.

Pre-filled with 100K cSt differential oil, this centre diff arrives calibrated for balanced power delivery between left and right wheels, a critical factor in maintaining straight-line stability and predictable cornering behaviour. Whether you're navigating the challenging terrain of UK off-road tracks or testing your skills on competition circuits, this differential will provide the consistent, reliable performance that lets your driving skills shine through without mechanical limitations holding you back.

What's in the Box

• FONZON 36T Full Metal Centre Differential Assembly — completely factory pre-assembled
• Pre-filled with 100K cSt differential oil
• All fasteners (Grade 12.9 titanium-coated screws)

Frequently Asked Questions

• Is the FONZON 36T centre differential suitable for my Losi Baja Rey? — Yes, this centre differential is specifically designed as a direct fit for the centre differential mount of the Losi 1/10 REY platform. However, before installation, you should carefully check gear mesh and mounting alignment to ensure optimal performance and longevity.
• Do I need any special tools or expertise to install this centre differential? — Basic RC assembly knowledge and tools are required. Since the differential arrives pre-assembled and pre-filled, you simply need to carefully install it into your vehicle's centre differential mount. You'll need standard hex keys and screwdrivers. If you're uncertain about installation, we recommend consulting the Losi Baja Rey manual or seeking assistance from an experienced RC technician.
• What makes the FONZON centre differential better than the stock Losi centre differential? — The FONZON uses premium materials throughout — powder-metallurgy planetary gears, aerospace-grade 7075-T6 aluminium housing, and nickel-chromium alloy steel components — compared to the stock differential. These materials are significantly stronger and more durable, providing better resistance to wear and stripping. The precision CNC-machining ensures tighter tolerances and optimal gear mesh, resulting in smoother power delivery and improved handling characteristics.
• Can I adjust the differential oil viscosity after installation? — The factory pre-fill of 100K cSt oil is optimised for the Losi REY platform and should provide excellent performance out of the box. However, experienced builders may choose to drain and refill with alternative viscosities to fine-tune handling characteristics for specific track conditions or driving preferences. If you do this, always use high-quality RC differential oil from a reputable manufacturer.
• How long will this centre differential last? — With proper maintenance and installation, the FONZON 36T centre differential is engineered for exceptional durability. The premium materials and manufacturing processes mean this component will outlast lower-quality alternatives by a significant margin. Regular inspection, proper oil maintenance, and careful installation will ensure years of reliable performance.
• Is this a genuine Method RC Fonzon product? — Yes, RC Model Shop is an authorised retailer for all brands we stock, ensuring you receive genuine, authentic components with full manufacturer support and warranty coverage. When you purchase from RC Model Shop, you're buying the real thing with guaranteed quality assurance.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the FONZON 36T FULL METAL CENTRE DIFF SET - 1/10 LOSI BAJA REY FZCSREY02 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.