As someone who relies heavily on a trailer for work and personal needs, I know firsthand the frustration of a rough-riding, noisy, and unreliable suspension system. The constant banging and squeaking weren’t just annoying; they signaled wear and potential failure points that could lead to costly repairs and downtime. Facing worn-out bushings and a suspension that felt like it was constantly fighting the road, I knew I needed a significant upgrade to protect my cargo, my trailer, and my sanity. Ignoring these issues wasn’t an option, as failing suspension components can lead to uneven tire wear, structural damage to the trailer, and even dangerous handling characteristics on the road. A robust and reliable suspension system was essential to ensure the longevity and safety of my rig.
Trailers are designed to carry loads, and a key component in safely and smoothly transporting those loads is the suspension system. A quality setup absorbs road shock, maintains tire contact for stability, and reduces stress on the trailer frame and its contents. Anyone hauling frequently, especially over varied or poor road conditions, should consider the state of their suspension. An ideal candidate for a suspension upgrade is someone with an older trailer experiencing excessive noise, rough ride, or visible wear on bushings and equalizers. This includes RV owners looking for a smoother tow or utility trailer operators needing more durability for heavy, consistent use.
However, a full suspension upgrade like a tandem kit might be overkill or incompatible for very light-duty trailers, single-axle setups (unless specifically designed), or trailers with unusual suspension configurations. Always verify compatibility with your trailer’s axle spacing and spring type. Before diving into a purchase, consider your trailer’s gross vehicle weight rating (GVWR), the type of axles and springs it uses, the spacing between axles, and whether you need a complete kit or just replacement parts. Think about the level of ride improvement and durability you’re seeking and research the specific components included in any kit you’re considering.
- Replaces rubber equalizers for E-Z Flex heavy-duty rubber suspension system by Dexter Axle
- For 33" axle spacing and axles up to 6000lbs. capacity
- Retrofits to existing leaf spring axles that use 013-104 style equalizers
Introducing the Dexter K71-652-00 Complete Tandem Kit
The Dexter K71-652-00 Complete Tandem Kit is designed as a comprehensive solution to upgrade or replace worn suspension components on tandem axle trailers. It specifically targets those using 013-104 style equalizers on axles up to 6000 lbs capacity with 33″ axle spacing and 26″ double-eye springs. The core promise of this kit is to replace standard rubber equalizers with Dexter’s E-Z Flex heavy-duty rubber suspension system, incorporating wet bolts and bronze bushings for improved durability, ride quality, and reduced maintenance requirements compared to standard plastic bushings and dry bolts. The kit is presented as a retrofit solution that doesn’t require welding, grinding, or cutting, making it accessible for competent DIYers. While specific comparisons to a direct market leader are less common for this type of component kit, it represents a significant upgrade over basic OEM setups often found on production trailers, particularly those using plastic bushings.
Pros:
* Substantial improvement in ride quality and noise reduction.
* Includes heavy-duty bronze bushings and wet bolts for increased durability and greaseability.
* Designed as a direct retrofit for specific common setups.
* Components are generally well-regarded and feel robust.
* Potential for longer lifespan compared to OEM plastic components.
Cons:
* Packaging can be poor, potentially leading to lost or damaged parts.
* Some wet bolts or Zerk fittings can be difficult to grease or may be defective out of the box.
* Installation can present challenges depending on trailer condition and specific application (e.g., bolt length issues for some).
* Customer support experience for replacements or technical help can be difficult for Amazon purchases according to some users.
* Requires specific tools for installation.
- Heavy-duty Construction: Our 3500 lbs trailer axle features a solid straight steel axle tube and comes with a durable powder coating for superior protection against the elements.
- 89" Hubface 74" Spring Center / 5x4.5 Bolt Pattern | Specs: 3,500 lbs Idler Trailer Axle (Capacity 3.5K), 5 Lug, Tube: 2 3/8"
- 71" Hubface 58" Spring Center / 5x4.5 Bolt Pattern
Delving into the Performance and Advantages
Stepping away from the worn-out original setup and moving to the Dexter K71-652-00 was a game-changer. This complete tandem kit addresses several weak points often found in standard trailer suspensions, fundamentally changing how the trailer handles and feels on the road.
Replacing Rubber Equalizers with E-Z Flex:
One of the most significant features of this kit is the inclusion of the E-Z Flex heavy-duty rubber suspension system equalizers. Traditional metal equalizers, often combined with basic rubber pads or bushings, transfer a lot of road shock directly to the trailer frame. The E-Z Flex system incorporates rubber within the equalizer itself. This rubber insert acts as a cushion between the axles, allowing for smoother articulation and absorbing impacts before they travel through the entire trailer structure. On the road, this translates directly to a noticeably smoother ride. Less vibration and jarring means less stress on the trailer’s frame, appliances (in an RV), and cargo. For anyone hauling sensitive equipment or just wanting a more comfortable towing experience, this cushioning effect is a major benefit. It truly quieted down my trailer, eliminating the loud clanking and banging that used to be a constant companion on bumpy roads.
Durable Bronze Bushings and Wet Bolts:
A common failure point in trailer suspension systems is the bushings within the leaf spring eyes and equalizers. Many trailers come standard with plastic or nylon bushings that wear out relatively quickly, especially under heavy loads or frequent use. The Dexter K71-652-00 replaces these with robust bronze bushings. Bronze is a much harder and more durable material, designed to withstand the constant friction and load cycling inherent in a suspension system. Paired with wet bolts, which are specially designed bolts with a grease channel and a Zerk fitting, these bushings can be regularly greased. This lubrication is critical; it significantly reduces friction, minimizes wear, and extends the lifespan of both the bushings and the bolts. Being able to periodically pump fresh grease into these pivot points ensures they are operating smoothly and quietly. While some users reported initial difficulty getting grease to flow or issues with specific Zerk fittings, once resolved, the ability to grease these points is a massive advantage for long-term maintenance and component health. My previous plastic bushings were completely worn through in places after only a few years, a problem the bronze and wet bolt system is specifically designed to prevent, promising many more miles of reliable service.
Retrofitting to Existing Leaf Spring Axles:
A major practical advantage of the Dexter K71-652-00 Complete Tandem Kit is its design as a retrofit. It’s specifically made to replace common 013-104 style equalizers and work with 26″ double eye springs on tandem axles with 33″ spacing, provided the axles are rated up to 6000 lbs. This means that for many trailers already equipped with Dexter axles or similar setups, installing this kit is a matter of removing the old components and bolting the new ones into the existing hangers. There’s no need for complex modifications to the trailer frame or axle hangers. This “bolt-on” compatibility makes the upgrade significantly more accessible for DIY mechanics and reduces installation costs compared to custom fabrication. The process primarily involves safely supporting the trailer, removing the old bolts, bushings, and equalizers, and installing the new kit components. While having the right tools (especially air tools and sturdy jacks) can make the job faster, the fundamental compatibility simplifies the task immensely for those within the specified trailer parameters.
Heavy-Duty Shackles:
The kit also includes heavy-duty shackles. Shackles are subjected to significant forces as the suspension articulates, and thinner OEM shackles can bend or even break under extreme conditions or heavy loads. The beefier shackles provided in this kit offer increased strength and peace of mind. This enhanced durability in a critical suspension component reduces the risk of catastrophic failure on the road, particularly important for those who push their trailer’s capacity or travel over demanding terrain. Knowing that these components are built tough adds another layer of confidence when towing.
Reduced Noise and Improved Ride Quality:
Beyond the technical specifications, the most immediately noticeable benefits are the drastic reduction in suspension noise and the significant improvement in ride quality. The combination of the rubber cushioning in the E-Z Flex equalizers and the smooth operation of the greasable bronze bushings and wet bolts virtually eliminates the creaks, groans, and loud bangs that plague worn-out suspension systems. Towing becomes a much quieter experience, both inside the tow vehicle and for anyone near the trailer. Furthermore, the trailer tracks smoother, with less bouncing and jarring over bumps and uneven surfaces. This smoother ride is not just about comfort; it contributes to better stability, reduced fatigue on the tow vehicle and driver, and less potential damage to the trailer and its contents from constant vibration and impact. The difference was night and day compared to my old setup, making long hauls far more pleasant.
Potential Challenges and Considerations:
While the kit offers substantial benefits, it’s important to be aware of potential hiccups during installation, as noted by some users. Issues mentioned include poor packaging sometimes leading to missing or slightly damaged parts, potentially short shackle bolts depending on the specific leaf spring eye thickness, and occasional problems with getting grease to flow through some of the new wet bolts or Zerk fittings. Resolving the grease issues might require replacing a Zerk, clearing a burr, or even applying significant grease gun pressure, sometimes even using a higher PSI gun. While the installation is generally straightforward in terms of process, these component-specific issues can add frustration and time to the job. Testing wet bolts before installation and carefully checking the kit contents upon arrival are wise precautions. Despite these potential snags, the core quality of the major components like the equalizers, bushings, and shackles is evident.
Hearing from Fellow Trailer Owners
After installing the Dexter kit myself, I looked online to see what others were saying about their experience. It seems many people share my positive view of the upgrade’s results. Several users reported a significant reduction in trailer noise and a much smoother ride after installation, confirming the benefits I experienced. People were impressed with the apparent quality and robust feel of the components compared to their original parts. Installation was often described as manageable, especially with the right tools, though a few mentioned minor issues like needing different length bolts for their specific springs or dealing with initial grease flow problems, much like my own findings and the tips I gathered during my research. Overall, the sentiment is that this kit represents a worthwhile investment for improving trailer performance and durability.
Wrapping Up: Is This Upgrade Right for You?
Dealing with a worn-out, noisy, and rough trailer suspension is more than just an annoyance; it’s a risk to your trailer, your cargo, and your safety. The constant stress on components can lead to premature failure and costly repairs down the line. Upgrading your suspension addresses these issues head-on, providing a smoother, quieter, and more durable towing experience.
The Dexter K71-652-00 Complete Tandem Kit is a strong contender for this crucial upgrade. Its key advantages lie in the cushioning provided by the E-Z Flex equalizers, the long-term durability and serviceability offered by the bronze bushings and wet bolts, and the increased strength of the heavy-duty shackles. These features work together to dramatically improve ride quality, reduce noise, and extend the life of your suspension components compared to many standard OEM setups. If you have a tandem axle trailer within the specified parameters (33″ axle spacing, 26″ springs, up to 6k axles) and are tired of the rough ride and wear, this kit offers a robust solution. To find out more and see if this is the right fit for your trailer, click here.
Last update on 2025-08-17 / Affiliate links / Images from Amazon Product Advertising API