Overview
The Traxxas 11-T Pinion Gear Differential (Front) TRX7790 is an essential replacement and upgrade component for serious RC enthusiasts running Traxxas X-Maxx and XRT monster trucks. This heavy-duty front differential pinion gear is engineered to deliver superior drivetrain performance and reliability, whether you're a competitive racer or a weekend basher looking to maintain your RC car UK setup. The 11-tooth pinion configuration works in perfect harmony with the #7792 35-tooth differential ring gear, providing optimised power distribution and torque characteristics across the front axle assembly.
If you own a brushless RC monster truck or are upgrading your Traxxas X-Maxx, X-Monster, or XRT platform, having quality replacement differential components is crucial for maintaining peak performance. Differential gears experience constant stress during acceleration, cornering and aggressive off-road driving, which is why Traxxas engineers these components from heavy-duty steel to withstand the demands of 8S brushless power systems and extreme terrain. This front pinion gear is specifically designed as a direct replacement part, ensuring perfect compatibility and eliminating any guesswork when servicing your RC vehicle.
Whether you're experiencing wear on your original differential or seeking to upgrade to heavier-duty components for more aggressive driving, the TRX7790 represents genuine OEM engineering from the world's leading RC manufacturer. Available now from RC Model Shop, this is the authentic component trusted by RC enthusiasts across the UK for maintaining and upgrading their high-performance monster truck fleets.
Key Features
- Heavy-Duty Steel Construction — Manufactured from premium hardened steel, this pinion gear is built to withstand the extreme forces generated by brushless motors and 8S LiPo battery systems, ensuring longevity and reliability even in the most demanding driving conditions.
- 11-Tooth Pinion Design — The 11-tooth configuration provides the optimal balance between acceleration response and top-end performance when paired with the 35-tooth ring gear, delivering smooth power delivery through your front differential.
- OEM Traxxas Component — This is a genuine Traxxas part engineered to exact specifications, guaranteeing perfect fitment, compatibility and performance characteristics on all supported X-Maxx and XRT models without any modifications required.
- Front Differential Application — Specifically engineered for front axle differential duty, this pinion gear works in concert with the heavy-duty #7792 35-tooth differential ring gear to manage torque distribution and control during acceleration, braking and cornering.
- Direct Replacement Part — Designed as a drop-in replacement for worn or damaged original equipment, allowing you to quickly restore your RC monster truck to factory performance specifications with minimal downtime.
- Wide Model Compatibility — Compatible with multiple Traxxas platforms including X-Maxx Belted 4WD, X-Maxx Ultimate, X-Monster, and XRT VXL-8S models in various colours, making this a versatile component for owners of multiple vehicles.
Technical Performance
The Traxxas TRX7790 represents the pinnacle of differential engineering for high-performance 1/5 scale RC monster trucks. Constructed from heavy-duty steel and precisely machined to tolerances that ensure smooth engagement with the 35-tooth differential ring gear, this pinion gear is engineered to manage the torque output of brushless motors driving 8S LiPo battery systems. The 11-tooth pinion delivers optimal gear ratios for the front differential, balancing acceleration response with top-end speed capability on both high-speed bashing runs and technical rock crawling terrain. The hardened steel construction ensures resistance to wear, stripping and tooth deformation even under continuous heavy use, making this component a worthy investment for anyone serious about maintaining their brushless RC monster truck in peak condition. The manufacturing precision ensures perfect mesh alignment with the ring gear, reducing noise, vibration and parasitic drivetrain losses whilst maximising efficiency and power delivery to the front wheels.
What's in the Box
- Traxxas 11-tooth front differential pinion gear (TRX7790)
Frequently Asked Questions
- What is the TRX7790 pinion gear used for? — The TRX7790 is a front differential pinion gear designed to manage torque distribution across the front axle of Traxxas X-Maxx and XRT monster trucks. It works with the 35-tooth differential ring gear to control how power is delivered to the front wheels during acceleration, braking and cornering, making it essential for proper drivetrain function and performance.
- Which Traxxas models is the TRX7790 compatible with? — This front differential pinion gear is compatible with the X-Maxx Belted 4WD, X-Maxx Ultimate, X-Monster Chassis, and XRT VXL-8S platforms in all available colour variants including Orange, Blue, Red, Green and Black options.
- Do I need to use the #7792 35-tooth differential ring gear with this pinion? — Yes, the TRX7790 11-tooth pinion gear is specifically engineered to work with the #7792 35-tooth heavy-duty differential ring gear. Using the correct ring gear ensures proper gear mesh, smooth operation and optimal performance characteristics on your RC monster truck.
- Is this suitable for brushless RC cars? — Absolutely. The heavy-duty steel construction of the TRX7790 is specifically designed for use with brushless motor systems and 8S LiPo battery configurations found in modern Traxxas X-Maxx and XRT vehicles, making it ideal for high-performance brushless RC enthusiasts.
- How often should I replace the differential pinion gear? — The heavy-duty steel construction means the TRX7790 will last through extensive use under normal driving conditions. However, if you notice grinding noises from the differential, sluggish acceleration response, or visible tooth damage during inspection, it's time to replace this component to restore optimal performance.
- What is the difference between standard and heavy-duty differential gears? — The TRX7790 is a heavy-duty pinion gear manufactured from premium hardened steel specifically engineered to withstand the continuous torque loads generated by brushless motors and 8S LiPo systems, offering superior durability compared to standard components for serious RC enthusiasts.
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 Traxxas 11-T Pinion Gear Differential (Front) TRX7790 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.
- Brand: Traxxas
- Part Number: TRX7790
- EAN: 0020334779007
- Product Type: Differential Pinion Gear (Front)
- Spare Part Category: Drivetrain Spares
- Tooth Count: 11 teeth
- Material: Heavy-duty steel
- Application: Front differential
- Ring Gear Compatibility: #7792 35-tooth differential ring gear
- Compatible Models: Traxxas X-Maxx Belted 4WD Brushless RTR 8S Monster Truck (Orange, Blue, Red, Green), Traxxas X-Maxx Ultimate (Blue X, Green X), Traxxas X-Monster Chassis, Traxxas XRT VXL-8S (Green, Black, Blue, Orange), Traxxas XRT Ultimate (Blue X, Green X)
- Vehicle Type: 1/5 scale monster truck
- Drive System: 4WD
- Power System: Brushless motor compatible with 8S LiPo
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
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- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
