TRAXXAS TRA7727A Lower Upper Rear Bulkhead

( Brand: Traxxas ), ( Manufacturer Part Number: TRA7727A )

Review TRAXXAS Traxas Bulkhead Rear Upper And Lower

The Traxxas TRX-4 Traxxas7727A Bulkhead Rear Upper and Lower Control Arms are high-performance aftermarket upgrades designed to enhance the durability and adjustability of your Traxxas TRX-4 scale and trail crawler. These control arms are engineered to provide improved articulation, better steering precision, and increased suspension travel, making them an excellent choice for off-road enthusiasts who demand the best from their rigs.

The upper control arms are constructed from strong 3mm aluminum, providing rigidity and reducing the weight of the vehicle. The lower control arms are made from reinforced composite material, offering the right balance of strength and flexibility for handling various terrain conditions. The composite material also helps to absorb shock and reduce the wear and tear on other components, ensuring a longer lifespan for your TRX-4.

One of the standout features of the Traxxas7727A Bulkhead Rear Upper and Lower Control Arms is their adjustability. The upper control arms come with adjustable length pivot balls, allowing you to fine-tune the geometry to suit your driving style and the specific terrain you'll be tackling. This adjustability also makes it easier to compensate for wear and tear over time, ensuring optimal performance and longevity.

The lower control arms feature adjustable length track bars that can be easily changed to accommodate different track widths or tire sizes. This feature not only allows for better clearance on uneven terrain but also helps to maintain the correct suspension geometry, ensuring optimal wheel contact and traction.

Additionally, the Traxxas7727A Bulkhead Rear Upper and Lower Control Arms come with heavy-duty ball joints, providing smooth and consistent movement while withstanding the rigors of off-road driving. These ball joints are made from high-quality material and are designed to last, ensuring that your TRX-4 remains agile and responsive even in the most challenging conditions.

In summary, the Traxxas TRX-4 Traxxas7727A Bulkhead Rear Upper and Lower Control Arms are a must-have upgrade for any serious off-road enthusiast. With their unparalleled durability, adjustability, and high-performance design, these control arms will help take your Traxxas TRX-4 to new heights, providing you with unmatched off-road capabilities and an unforgettable driving experience.

The Traxxas TRX-4 is a popular choice among RC hobbyists due to its versatility, durability, and high performance. One of its essential upgrades is the Bulkhead Rear Upper and Lower Control Arms (TRX4-5019), which can enhance the suspension system and improve the overall driving experience. Here are some pros and cons of buying this specific Traxxas part:

1. Enhanced Suspension: The Bulkhead Rear Upper and Lower Control Arms are designed to provide better clearance for larger tires and improve the suspension's performance by reducing the axle steer effect.

2. Durability: Traxxas is known for its high-quality parts, and these control arms are no exception. They are made of strong composite material, ensuring they can withstand rough terrains and heavy use.

3. Easy Installation: Installing these control arms is a straightforward process, and they do not require any additional modifications or trimming.

4. Improved Axle Steer: These control arms help reduce axle steer, which is the unwanted side-to-side movement of the axle during suspension travel. This results in better stability, improved handling, and a smoother ride.

1. Cost: The Bulkhead Rear Upper and Lower Control Arms are not the cheapest upgrade available for the Traxxas TRX-4. Hobbyists on a tight budget might consider other less expensive options.

2. Not Essential: While these control arms can improve the suspension system and provide better performance, they are not a necessary upgrade for all users. The stock suspension may be sufficient for some, depending on the driving conditions and tire size.

The Traxxas TRX-4 Bulkhead Rear Upper and Lower Control Arms are a valuable upgrade for hobbyists looking to improve their TRX-4's suspension system and enhance its performance. They provide better clearance for larger tires, improve handling, reduce axle steer, and add durability. However, they come at a cost, and some users might not see the need for this specific upgrade, especially if they are satisfied with the stock suspension.

If you are an experienced RC hobbyist, enjoy pushing your TRX-4 to its limits, or plan to install larger tires, the Bulkhead Rear Upper and Lower Control Arms are a worthwhile investment. They can provide better handling, improved stability, and a smoother ride. However, if you are new to the hobby, on a tight budget, or unsure if you need this upgrade, it might be best to consider other options or focus on mastering the basics of driving your TRX-4.

Details:

This product was added on 08/27/2025 by JM. Bulkhead, rear upper lower / motor mount washers steel 4 / 4x18mm BCS 4 replacing #7727 #7728 requires #5107A ball bearings 2.

part #: tra7727a price

• $20.00

specifications rcparta:

• brand: Traxxas
• mpn: Tra7727a

shipping rcparta:

• service: Economy
• transit: 4-8 Days
• cost: $5.48
• class: Economy
• type: Fixed

seller rcparta:

• city: Tampa, Florida
• # reviews: 5607
• rating: 99.6%

general rcparta:

• condition: New
• Radio Control Control Line > RC model Vehicle Parts Accs > Other RC Parts Accs

returns rcparta:

• policy: Returns Accepted
• method: Money back
• time: 30 Days
• paid by: Buyer

offer rcparta:

• availability: In Stock
• quantity: 1
• started: April 3, 2026
• options: Ship-to-home
• sold: 0

payments rcparta:

• other
• wallet: Apple-pay
• credit card: Mastercard

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