Overview
The Traxxas Shock Tower, Front (Left & Right Halves) TRX7839 is an essential replacement chassis component for Traxxas XRT models, designed to deliver the durability and performance expected from one of the world's leading RC car manufacturers. Whether you're a seasoned RC enthusiast in the UK or someone new to the hobby of remote-controlled vehicles, having quality replacement parts on hand ensures your machine stays in peak condition and ready for action. This front shock tower assembly represents precision engineering and is a critical structural element that supports your suspension system and keeps your RC 4x4 performing at its best.
As a dedicated spares component, the TRX7839 front shock tower halves are engineered to work seamlessly with the XRT VXL-8S and XRT Ultimate models across all colour variants. The shock tower plays a vital role in your RC car's suspension geometry and overall chassis rigidity, making it one of those parts you'll want to replace if damaged during aggressive off-road bashings or competition driving. Available through authorised Traxxas retailers like RC Model Shop, this genuine part ensures you're getting authentic Traxxas quality and compatibility with your specific model.
Whether you're setting up your first RC 4x4 for UK terrain or you're upgrading to the Extreme Heavy Duty configuration, understanding the role of the shock tower and having access to quality replacements is fundamental to enjoying your RC hobby to the fullest. This product guide will walk you through everything you need to know about this component, its specifications, and how it fits into your Traxxas XRT setup.
Key Features
- Left and Right Halves Included — This package provides both the left and right front shock tower halves in a single purchase, giving you a complete front suspension support solution without needing to buy multiple items separately. This complete pairing ensures matched structural integrity across both sides of your RC 4x4's front end.
- Traxxas OEM Quality — As a genuine Traxxas original equipment manufacturer part, this shock tower meets the exacting standards set by Traxxas engineers and is designed to integrate perfectly with XRT chassis components. Genuine parts provide superior fit, finish, and durability compared to aftermarket alternatives.
- XRT Model Compatibility — This shock tower is specifically engineered for compatibility with the Traxxas XRT VXL-8S and XRT Ultimate models, ensuring precise fitment and performance. The component works across all colour variants including green, black, blue, and orange models, making it universally suitable for XRT owners.
- Chassis Spares Category — Classified as a chassis spares component, the shock tower is a structural element critical to maintaining your RC 4x4's rigidity and suspension geometry. As a critical structural part, keeping quality replacements available is essential for maintaining your vehicle's performance and longevity.
- Extreme Heavy Duty Kit Compatible — This shock tower integrates seamlessly with Traxxas's Extreme Heavy Duty (EHD) upgrade system, allowing you to modernise your suspension with heavier-duty components whilst maintaining OEM compatibility. The EHD kit includes everything needed for installation, and the shock tower serves as the foundation for the upgraded suspension system.
- Easy Installation — The shock tower can be installed using basic hex drivers (1.5mm, 2.0mm, and 2.5mm sizes) and a 7mm nut driver, making it accessible even to RC enthusiasts who aren't experienced wrenchers. The straightforward design allows for quick removal and replacement, minimising downtime between bashing sessions.
Technical Performance
The Traxxas front shock tower represents precision manufacturing in composite materials designed to handle the stresses of aggressive RC 4x4 driving. The shock tower serves as the primary mounting structure for your front suspension system, including the shock absorbers, camber links, and steering components. When integrated with the Extreme Heavy Duty upgrade kit, the shock tower works in conjunction with oversized driveshafts featuring telescoping design with massive universal joints, true curvilinear splines, and 6mm stub axles. The engineering incorporates 20% larger bearings within the steering blocks and hub carriers (6x12x4mm and 12x18x4mm specifications), providing enhanced load capacity and longevity. The shock tower's structural design allows for precise camber adjustment through the included camber links, with factory specifications calling for 81mm centre-to-centre measurement from the camber link rod ends. The composite material construction offers an excellent balance between weight savings and structural rigidity, crucial factors for RC 4x4 performance on UK terrain ranging from loose gravel to rocky off-road tracks. Installation onto the gearbox housing requires the original mounting hardware removed during disassembly, and the component integrates with both standard and LED-equipped XRT models, with provisions for threading LED power supply leads through the tower structure for vehicles equipped with accessory lighting.
What's in the Box
- Front shock tower left half
- Front shock tower right half
What You Need to Complete
- 1.5mm hex driver (for driveshaft screw pins)
- 2.0mm hex driver (for shock installation)
- 2.5mm hex driver (for suspension work)
- 7mm nut driver (for wheel removal)
- Original mounting hardware from your existing shock tower (for reinstallation)
- If upgrading to Extreme Heavy Duty configuration: complete EHD upgrade kit with all replacement suspension components, camber links, caster blocks, and steering blocks
Frequently Asked Questions
- Will this shock tower fit my Traxxas XRT model? — Yes, this TRX7839 front shock tower is designed for all Traxxas XRT VXL-8S and XRT Ultimate models regardless of colour variant (green, black, blue, or orange). The component provides the complete left and right front halves needed for a full front end replacement.
- Can I install this shock tower myself without professional help? — Absolutely. The installation process is straightforward and requires only basic hex drivers and a nut driver. The shock tower removes by unbolting it from the gearbox and simply lifts out, then reinstalls using the same fastening points. If you have basic mechanical knowledge and the correct tools, you can complete the installation in well under an hour.
- What tools do I need to install this shock tower? — You'll need 1.5mm, 2.0mm, and 2.5mm hex drivers, plus a 7mm nut driver. The Traxxas 3415 Tool Kit is an affordable option that includes essential sizes, or the 8712 Speed Bit Essentials set provides premium-quality hex and nut-driver sizes compatible with 1/4 inch power drivers for faster work.
- Is this part compatible with the Extreme Heavy Duty upgrade kit? — Yes, this shock tower pairs perfectly with Traxxas's Extreme Heavy Duty (EHD) upgrade system. In fact, the shock tower is one of the components you'll be replacing when performing the full EHD conversion. The kit includes everything needed, and the installation process is well-documented with step-by-step guides available from Traxxas.
- How do I remove the old shock tower? — Remove the wheel nuts and wheels first using a 7mm nut driver. Unplug any LED accessory power supply leads if your model has them. Unscrew the shock absorbers using a 2mm driver. Remove the screws securing the camber links to the shock tower, then remove the four main screws holding the tower to the gearbox. The tower lifts straight out once all fasteners are removed.
- What happens if I don't maintain my shock tower? — The shock tower is a structural component that supports your entire front suspension system. If it becomes cracked or damaged, it can compromise suspension geometry, affect handling, and potentially cause steering or suspension failures. Regular inspection and replacement of damaged towers keeps your RC 4x4 safe and performing optimally.
- Can I use this shock tower on other Traxxas models? — This shock tower is specifically engineered for XRT VXL-8S and XRT Ultimate models. Other Traxxas models use different shock tower designs and fastening points, so this component is not compatible with Rustler, Hoss, or other model lines.
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 Shock tower, front (left & right halves) TRX7839 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.
- Part Number: TRX7839
- EAN: 020334783905
- Product Type: Front shock tower (left and right halves)
- Compatible Models: Traxxas XRT VXL-8S (all colours), Traxxas XRT Ultimate (all colours)
- Compatible Model Variants: TRX78086-4-GRN, TRX78086-4-BLK, TRX78086-4-BLUE, TRX78086-4-ORNG, TRX78097-4-BLUEX, TRX78097-4-GRNX
- Spare Part Category: Chassis Spares
- Material: Composite construction
- Contents: Left and right front shock tower halves
- Installation Hardware: Uses original mounting fasteners from existing shock tower
- Hex Driver Sizes Required: 1.5mm, 2.0mm, 2.5mm
- Nut Driver Size Required: 7mm
- Camber Link Adjustment Range: Adjustable with multiple positioning holes
- Camber Link Specification: 81mm centre-to-centre measurement (28.5mm shank-to-shank)
- Extreme Heavy Duty Kit Compatible: Yes
- LED Support: Compatible with LED-equipped models, supports routing of power supply leads
- Installation Time: Less than 1 hour for experienced users
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.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
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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.
