A Comprehensive Guide to RV Braking and Suspension Systems (Truck & Trailer)

Save your RV Chassis, Improve Safety

May 14, 2025

INDEX

Prevent the rolling volcano vibration that can compromise chassis welds and flex
Minimize laminate and trim separation
Minimize appliance failures
Prevent Potential Electrical Fires
Save your Tires and Bearing wear and tear
Prevent bolt and screw losses ( little locktite won’t hurt either)
Prevent premature brake wear and disc drum overheating

It’s the silent killer of RVs and trailers: the constant, bone-rattling vibration from the road. We’re not talking about a few bumps. We mean that relentless "volcano shake" that loosens cabinet doors, rattles appliances, stresses electrical connections, and slowly compromises the very frame of your rig. While having the power to stop is critical, what’s the point if your home-on-wheels is shaking itself apart on the journey?
This guide tackles both of these crucial challenges head-on. We will cover the essential braking system upgrades needed for absolute stopping confidence, especially on older trucks and trailers. But just as importantly, we’ll dive deep into the suspension solutions designed to absorb road shock, eliminate destructive vibrations, and protect your investment for the long haul. Get ready to learn how to create a towing experience that is not only safe, but smooth and stable.

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I am listing up front in the first couple of sections the things to be considered on older makes and models of trucks and pull behind RV’s and 5th wheels, though a lot of what is listed here can be utilized on smaller trailers as well. Use your own judgement.

Truck Braking System Upgrades:

These upgrades focus on enhancing the truck's inherent braking capabilities to handle the added stress of towing.

Upgraded Brake Pads:
- Heavy-duty pads (ceramic or metallic) resist heat and reduce brake fade.
Upgraded Rotors:
- Drilled, slotted, or larger rotors improve heat dissipation and stopping power.
Upgraded Calipers:
- Multi-piston calipers provide more even and powerful braking force.
High-Temperature Brake Fluid:
- Essential for maintaining brake performance under high heat.
Exhaust/Engine Brakes:
- Crucial for controlling speed on descents, reducing wear on service brakes.
Brake Controllers:
- While connecting to the trailer, the brake controller is a truck based item. It is what sends the signal to the trailer brakes.
Reinforced Brake Lines:
- Braided stainless steel brake lines reduce expansion under pressure, providing a firmer pedal feel.

RV/Trailer Braking System Upgrades:

These upgrades focus on the trailer's braking capabilities, working in conjunction with the truck's system.

Electric Brakes:
- Most travel trailers and fifth-wheels utilize electric brakes.
- Ensure they are properly adjusted and functioning.
Hydraulic Brakes:
- Some heavier trailers use hydraulic brakes, which offer powerful stopping.
- Regular maintenance is essential.
Breakaway Systems:
- A critical safety feature that automatically applies the trailer brakes if the trailer becomes detached from the truck.
- Regularly test the breakaway system.
Trailer Brake Adjustments:
- Trailer brakes require periodic adjustment to ensure proper function.
Wheel bearings:
- Wheel bearings that are in poor condition can heavily effect brake performance.
Tire maintenance:
- Tires that are in poor condition or over/under inflated can greatly effect braking performance.

Key Considerations:

Integration:
- The truck and trailer braking systems must work seamlessly together.
- A properly installed and adjusted brake controller is essential for this.
  Both of these suggestions are different for different Trucks or Towing Vehicles so be sure to look that up specifically for your specific situation.
Maintenance:
- Regular maintenance of both the truck and trailer braking systems is crucial for safety.
  Since there are different types of braking systems, be sure to look up the proper how to if you DIY or watch on You Tube.
Regulations:
- Be aware of local and state regulations regarding trailer braking requirements.
  In general, trailers with a Gross Vehicle Weight Rating (GVWR) of 3,000 pounds or more are required to have brakes. Additionally, if the towed vehicle's weight resting on the towing vehicle exceeds 40% of the towing vehicle's axle weight, brakes are also required, according to the Federal Motor Carrier Safety Regulations (FMCSRs)
  By addressing both the truck and trailer braking systems, you can create a truly comprehensive guide to safe towing.

Please note that especially today, a lot of what is needed is already a part of the purchase package on tow vehicles and recreational vehicles, so it’s a good idea, if purchasing for the first time, to see if it saves you considerable dollars to include upgrades when purchasing rather than adding after the sale.

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It's true that modern trucks and trailers are increasingly equipped with advanced safety features designed to enhance towing capabilities. Here's a breakdown of what's commonly offered:

Modern Truck Towing Safety Features:

Integrated Trailer Brake Controllers:
- Many new trucks come with factory-installed brake controllers that seamlessly integrate with the vehicle's electronics. This ensures smooth and consistent trailer braking.
  I recommend doing research on the truck of your choice if buying or on the one you currently own.
Trailer Sway Control:
- This system uses sensors to detect trailer sway and applies selective braking to individual wheels to stabilize the trailer.
  Many dealers and manufacturers have these items specifically for their Trailers and different tow vehicle types. It’s worth checking when you are buying as well as aftermarket.
Hill Descent Control:
- This feature helps maintain a constant speed when descending steep grades, reducing the need for constant braking.
Towing Mode/Tow-Haul Mode:
- This mode adjusts the transmission's shift points and engine braking to optimize performance and control when towing.
  You really do not want to be the one using those Semi Truck run-away ramps off the interstate. They can damage your trailer/RV, not to mention you may need a tow out of one.
Blind Spot Monitoring with Trailer Coverage:
These can be an upgrade at the time of purchase many times, or even installed prior to pick up on used RV’s.
- Some trucks extend their blind spot monitoring systems to include the length of the trailer, providing added safety when changing lanes.
360-Degree Camera Systems:
- These systems provide a bird's-eye view of the truck and trailer, making it easier to maneuver in tight spaces.
Rearview Cameras with Trailer Guidance:
- These cameras often include guidelines that help align the hitch with the trailer. That is a line on the screen when viewing that assists in lining up properly to connect.
  Some Trucks like the 2025 F450 Dually also has back up assist as well as cameras for 5th wheel and other connections if you get the upgrade.
Adaptive Cruise Control:
- This feature helps to maintain a safe distance between the truck and the vehicle in front, this is very helpful on long towing trips.
  Just be careful you don’t get too comfortable and keep an eye on upcoming road side signs that warn of slippery when wet, sharp curves and more. These are not things you want to enter into with cruise control.
Tire Pressure Monitoring Systems (TPMS):
- Modern systems can even monitor the tire pressure of the trailer tires.
  Keep in mind that many times wheel bearing overheats can cause the entire bearing, drum, brake, and tire to completely scheer off in which case many tire pressure systems won’t tell you anything happened\ because the tire pressure in the actual tire may be ok or out of range to sense.
  This is another reason cameras are a great idea.
Advanced Stability Control:
- Electronic Stability control, and roll stability control, help to keep the truck and trailer stable in difficult driving conditions.
  High winds and a common condition where weight distribution is not equal are quite common and can cause instability and sway. Once the trailer starts to sway it doesn’t take long for it to get out of control. Have a look at Youtube Videos.

Modern Trailer Towing Safety Features:

Electric Brakes:
- Most modern travel trailers and fifth-wheels come standard with electric brakes.
Breakaway Systems:
- These systems are mandatory in many areas and automatically apply the trailer brakes if the trailer becomes detached.
Anti-lock Braking Systems (ABS):
- Some higher end trailers are now being outfitted with ABS systems.
Improved Lighting:
- LED lighting is becoming standard on many trailers, providing brighter and more visible lights.
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Key Trends:

The integration of advanced driver-assistance systems (ADAS) into towing vehicles.
The increasing use of cameras and sensors to enhance visibility and situational awareness.
The focus on electronic stability control and sway prevention.

It's important to remember that while these features enhance safety, they do not replace the need for responsible driving and proper maintenance.

Below are different types of suspension systems for larger and luxury trailers and 5th wheels that also provide better breaking power and more.

These high-end rigs often employ advanced suspension systems that go beyond basic leaf springs, offering significant improvements in ride quality, stability, and even braking. Here's a breakdown:

Suspension systems are critical considerations at the time you purchase. It is easier to have them as part of your loan or simply to avoid wasting something you paid for already in lieu of an aftermarket upgrade.

An upgrade is more than a comfort upgrade where it pertains to a luxury trailer or 5th wheel, or any towable of 20” or more that is used as home living full time, or more than occasional vacations, it's essential to inquire about the suspension and braking systems.

These advanced technologies can significantly enhance safety, comfort, and overall towing experience, minimize vibration that can compromise your chassis, screws and bolts, electrical connections and more.

Below you will find Advanced Suspension Systems for Luxury Trailers and 5th Wheels by Leading RV Trailer Suspension Brands with Website Links. You will see more about them farther down as the article progresses.

LEADING INDEPENDENT SUSPENSION BRANDS

MorRyde:
- MorRyde Website
- They are a leading manufacturer of independent suspension systems, rubber shear spring equalizers, and other RV chassis enhancements.
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Dexter Axle:
- Dexter Axle Website
- A major supplier of axles, suspension components, and braking systems for RVs and trailers.
- <iframe width="1370" height="771" src="
  title="DEXTER TV - Fortress Superior Bearing Protection" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>Lippert Components (LCI):
- Lippert Components Website
- They provide a wide range of RV chassis and components, including suspension systems and equalizers.

Firestone Industrial Products:
- Firestone Industrial Products Website
- They are a well-known provider of air suspension components, including air springs and air control systems, which are used in many RV applications.Independent Suspension Systems:
- These systems allow each wheel to move independently, absorbing bumps and irregularities in the road.
- This results in a smoother, more controlled ride, reducing stress on the trailer's frame and contents.
Types of independent suspension:
- Torsion Axle Suspension:
  - Uses rubber cords inside a steel tube to provide suspension.
  - Known for simplicity and durability.
  - Reduces road shock transfer to the trailer.
- Air Suspension:
  - Uses air springs to provide adjustable ride height and cushioning.
  - Offers the smoothest ride and allows for precise leveling.
  - Can be adjusted to compensate for varying loads.
- Coil Spring Suspension:
  - Uses coil springs and shock absorbers for a more traditional automotive-style ride.
  - Provides good stability and control.
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Disc Brakes:
- While technically a braking system, disc brakes work in conjunction with advanced suspension to provide superior stopping power.
- Disc brakes offer:
  - More consistent braking performance.
  - Better heat dissipation.
  - Reduced brake fade.
- Many luxury trailers now offer disc brakes as standard or optional equipment.
Hydraulic Disc Brakes:
- These braking systems offer the most powerful and responsive braking.
- They are often found on the largest and heaviest trailers and 5th wheels.
Electronic Stability Control (ESC):
- ESC systems use sensors to detect trailer sway and apply individual brakes to correct it.
- This significantly improves stability and control, especially in adverse conditions.
- Works in conjunction with the tow vehicles ESC.
Self-Leveling Systems:
- These systems automatically adjust the trailer's ride height to maintain a level position, even when parked on uneven ground.
- This is often integrated into air suspension systems.

How These Systems Enhance Braking Power and More:

Improved Stability: Advanced suspension systems reduce trailer sway and improve stability, allowing the brakes to work more effectively.
Reduced Road Shock: Smoother ride quality reduces stress on the trailer's frame and braking components, extending their lifespan.
Enhanced Control: Independent suspension and ESC systems provide better control of the trailer, allowing for more precise braking.
Better Weight Distribution: Self-leveling systems and adjustable air suspension help to maintain proper weight distribution, which is essential for optimal braking performance.
Reduced wear and tear: reduced road shock reduces the stress on all components of the trailer.

Advanced Suspension Systems with Brand:

Independent Suspension Systems:
- MorRyde Independent Suspension Systems (IS):
  - MorRyde is a leading manufacturer of independent suspension systems for RVs.
  - Their IS systems utilize rubber shear springs and heavy-duty shock absorbers to provide a smooth, controlled ride.
  - Known for significantly reducing road shock and vibration.
  - Often used as an upgrade on high-end 5th wheels.
- AL-KO Independent Rubber Suspension (IRS):
  - AL-KO produces torsion axle systems that offer independent wheel suspension.
  - Popular in European trailers and increasingly available in the US.
- Dexter Axle Independent Suspension:
  - Dexter Axle also manufactures independent suspension systems, that are often used on a variety of trailers.
Air Suspension Systems:
- Air suspension systems are often integrated by RV manufacturers themselves, but components are supplied by companies like Firestone and Ride-Rite.
- These systems allow for adjustable ride height and provide excellent cushioning.
Disc Brakes:
- Disc brakes are often supplied by companies like Dexter Axle and Kodiak Disc Brakes.
- These companies provide complete disc brake assemblies for RV trailers.
Electronic Stability Control (ESC):
- ESC systems are often integrated into the trailer's braking system by manufacturers like Dexter Axle.
MorRyde SRE4000 and CRE3000:
- MorRyde also makes suspension enhancements for leaf spring suspension systems. The SRE4000 and CRE3000 rubber shear spring equalizers replace standard equalizers, and greatly improve ride quality on standard leaf spring suspension systems.

Why These Brands Matter:

Reputation for Quality: Brands like MorRyde have established a reputation for producing high-quality, durable suspension systems.
Improved Ride Quality: These systems significantly reduce road shock and vibration, enhancing comfort and protecting the trailer's contents.
Enhanced Stability: Independent suspension and ESC systems improve stability and control, contributing to safer towing.
Increased Durability: High-quality components and robust designs extend the lifespan of the suspension system.

An Ounce of Prevention is worth a pound of gain. That’s how I approach everything in life. Going into anything with eyes wide open and being willing take time to look at things yourself, do your own objective and unbiased research can go a long way when it comes to more happy and joy and less chaos and conflict.

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