Vitavon CNC Alu7075 Upgraded Diff Case V2 For 1/5 Arrma Kraton 8S/Outcast 8S (VITARA310915)

Overview

The Vitavon Kraton 8S CNC Alu7075 Diff Case V2 is a premium upgrade component designed specifically for serious RC enthusiasts running Arrma's flagship 1/5 scale models. Whether you're piloting an Arrma Kraton 8S or Outcast 8S, this precision-engineered differential case represents a significant step up from stock components, offering enhanced durability and performance for demanding RC driving conditions across the UK and beyond. This is the ideal upgrade for bashers, racers, and competitive drivers who demand reliability and precision from their RC car UK setup.

Manufactured by Vitavon, a recognised leader in high-performance RC upgrade components, the Diff Case V2 combines CNC-precision engineering with aerospace-grade materials to deliver a component that will outlast and outperform standard plastic alternatives. The V2 designation indicates this is the second generation of this design, incorporating refinements and improvements based on real-world testing and user feedback from the RC community. If you're serious about maximising the potential of your brushless 8S RC truck and want components that match the performance capability of your model, this is exactly what you need.

Available in attractive colour options including Silver and Red, this diff case doesn't just perform better—it looks the part too. Installation is straightforward for experienced RC modellers, and the component comes pre-assembled with everything needed to fit it to your Kraton or Outcast 8S, making this an accessible upgrade even if you're relatively new to modifying your ready to run RC vehicle.

Key Features

• CNC-Machined Aluminium 7075 Construction — The entire diff case is manufactured from premium aluminium 7075, one of the strongest aluminium alloys available in the aerospace and engineering industries. This material choice ensures your differential case will withstand the extreme forces generated by an 8S LiPo-powered 1/5 scale RC buggy or truck, providing significantly better durability than plastic stock components that can flex, crack, or break under aggressive driving conditions.
• HD Steel Cover — The V2 version features a heavy-duty steel cover that provides additional reinforcement and protection to the internal differential mechanism. This steel component ensures the diff case maintains its structural integrity during high-speed bashing, racing, or competitive RC driving, protecting the precision gears inside from impact damage and environmental contaminants.
• Precision CNC Engineering — Every component is manufactured using computer numerical control machining, which ensures tolerances measured in fractions of a millimetre. This precision guarantees a perfect fit with your Arrma Kraton 8S or Outcast 8S chassis, eliminating the slop and play that can develop in lower-quality components and improving overall handling characteristics of your RC vehicle.
• Two O-Ring Seals Included — The V2 comes equipped with two high-quality O-rings that provide sealing to keep dirt, sand, water, and mud out of the differential mechanism. This is particularly valuable if you're running your brushless RC truck in wet conditions, at the beach, or in dusty environments, as sealed differentials maintain smooth operation far longer than unsealed alternatives.
• Simplified Design Without Grub Screws — Unlike some differential designs that use side-mounted grub screws, the V2 eliminates these potential failure points. This simplified approach reduces the number of fasteners that can loosen or break, and removes the risk of grub screws jamming or seizing, making maintenance and servicing of your RC car UK much more straightforward.
• Easy Installation — Vitavon has designed this component with the end-user in mind, ensuring it drops into place on compatible Arrma models without requiring extensive modifications or custom machining. If you're upgrading from the standard plastic differential case, you'll appreciate how straightforward the swap is, getting your RC truck back on the track or terrain quickly.
• Colour Options Available — Choose between Silver and Red finishes to match your existing colour scheme or create a custom look for your Kraton 8S or Outcast 8S. The anodised finish not only looks professional and aggressive, but also provides corrosion protection for the aluminium underneath, ensuring your investment maintains its appearance and function for years of RC driving enjoyment.

Technical Performance

The Vitavon Diff Case V2 represents a quantum leap in performance and durability compared to the plastic differential cases found on stock Arrma Kraton 8S and Outcast 8S models. Constructed from premium-grade aluminium 7075—the same material used in high-performance aerospace applications—this component is engineered to handle the extreme stresses generated by 8S LiPo battery systems that deliver tremendous power to 1/5 scale RC buggies and trucks. The precision CNC machining ensures that every surface is perfectly flat and every hole perfectly circular, eliminating the tolerance stack-up problems that plague cheaper alternatives. The integrated HD steel cover provides additional reinforcement at critical stress points, while the sealed design with dual O-rings keeps contaminants out of the differential mechanism, ensuring smooth operation whether you're bashing on rocky terrain, high-speed racing on tracks, or driving in wet or sandy conditions. Unlike the original equipment plastic case that can flex under load—introducing play that impacts handling and power delivery—the rigid aluminium construction maintains precise alignment of internal gears, translating directly to improved acceleration response and more predictable cornering behaviour. The V2 design eliminates side-mounted grub screws that can loosen, jam, or shear under extreme loads, instead using a more robust and reliable fastening approach. This is the differential case chosen by serious RC competitors and experienced bashers who demand components that can match the performance capabilities of their brushless 8S RC vehicle setup.

What's in the Box

• Vitavon CNC Alu7075 Diff Case V2 (main housing)
• HD Steel cover
• Two O-rings (seals)
• Installation instructions

Compatibility

• Arrma Kraton 8S (model ARA110002BT1 / ARA110002BT2)
• Arrma Outcast 8S (model ARA5810B / ARA5210B)
• 1/5 scale RC vehicles only

Frequently Asked Questions

• Will this Vitavon diff case improve my Arrma Kraton 8S performance? — Yes, significantly. The rigid aluminium 7075 construction eliminates the flex and play found in plastic differential cases, resulting in more direct power delivery to the wheels, faster acceleration response, and more predictable handling characteristics. Many RC enthusiasts report noticeable improvements in cornering behaviour and traction after upgrading to this component, particularly when driving aggressively or competitively.
• Is this suitable for beginners or only experienced RC modellers? — Whilst this is a premium upgrade component designed for dedicated RC enthusiasts, the installation process is straightforward enough that anyone with basic mechanical skills can complete the swap. If you're new to modifying your ready to run RC buggy or truck, you might want to watch installation videos first, but this is definitely an accessible upgrade that doesn't require advanced knowledge or special tools.
• What is the difference between the V2 and the original version of this diff case? — The V2 represents the second generation of Vitavon's design for this application, incorporating design refinements and improvements based on extensive real-world testing and user feedback. The V2 eliminates side-mounted grub screws, comes with integrated O-ring seals for improved protection against contaminants, and features an updated HD steel cover design that provides better reinforcement at critical stress points. Essentially, the V2 is the improved version that addresses limitations found in the original design.
• Can I use this diff case in wet or muddy conditions? — Absolutely. The sealed design with dual O-rings specifically protects the differential mechanism from water, mud, sand, and other contaminants. This makes the V2 an excellent choice if you're running your brushless 8S RC truck at the beach, in wet weather, or in dusty terrain. The sealed design significantly extends the lifespan of internal gears compared to unsealed differentials used in wet conditions.
• How does the aluminium 7075 material compare to plastic differential cases? — Aluminium 7075 is one of the strongest aluminium alloys available, offering dramatically superior strength-to-weight ratio compared to plastic. It will not flex under load, will not crack from impact, and will not degrade from UV exposure. A plastic differential case from an 8S-powered RC vehicle will eventually develop cracks, flex, and fail; an aluminium 7075 case will outlast your vehicle by years. This is a genuine upgrade that will last indefinitely with proper maintenance.
• Do I need any special tools to install this diff case on my Outcast 8S? — No special tools are required beyond the standard hex drivers and spanners you likely already have for maintaining your RC car UK. The component is designed to bolt directly to your Outcast 8S chassis using existing fastener locations, making installation straightforward. If you're comfortable performing basic maintenance on your brushless RC truck, you can definitely install this upgrade yourself.
• What colours are available? — The Vitavon Diff Case V2 is available in two eye-catching colours: Silver and Red. Both feature anodised finishes that provide corrosion protection whilst delivering a professional, high-performance appearance that matches the aggressive aesthetic of modern 1/5 scale RC buggies and trucks.

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 Vitavon Kraton 8S CNC Alu7075 Diff Case V2 For Arrma Kraton 8S Outcast 8S 1/5 - Vitavon - VITARA310915 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.