Rear Suspension Aids For Towing – Pneumatic suspension, more commonly called air suspension, has been around since its first patented design in the early 1900s. There are many questions about its existence and how it relates to drag. We’ll only be able to scratch the surface of the material, but hopefully this will provide insight into the benefits of a properly designed airbag and air supply system.

First, it’s important to identify your vehicle’s towing and towing capacity, which will vary depending on the exact utility vehicle you’re driving. Inside the driver’s door box is a sticker that identifies the VIN and the Gross Vehicle Weight Rating (GVWR), which is the maximum weight of the truck that you can safely carry. This rating, along with your truck’s towing capacity, is determined by many factors, including engine size, gear ratio, wheel and tire package, cab and bed configuration, transmission and axles, for example. It’s important to note that most manufacturers typically advertise their highest towing capacity for a given vehicle, which is generally a work-specific configuration not common to the average consumer, but the truck is rated for considerably less capacity. Make sure your load is within the manufacturer’s specifications for your vehicle.

Rear Suspension Aids For Towing

Rear Suspension Aids For Towing

Your truck’s original suspension design allows for safe towing, towing and handling. When fully loaded, however, the weight can shift rearward, pointing the headlights skyward, bottoming out the rear suspension, and making steering lighter and braking more unpredictable. Adding airbags, or auxiliary air springs, to the system can make all the difference to the towing experience day and night, reducing the aforementioned towing shocks by adding support to the load. The result is better overall control of the vehicle. There are many systems available that add auxiliary air springs to your existing suspension, or completely replace your truck’s suspension platform (full air travel). An average system places airbags and corresponding mounts over the rear axle or leaf spring. Versions are also available for spring mounts that help stabilize from within the inner diameter of the spring.

Suspension Advice To Deal With Squatting While Towing A 4300 Pound Trailer?

Once inflated, the assist bag assembly allows you to add air to the system to level the vehicle and add much-needed stability, placing all four tires evenly on the ground. This makes a big difference – even when you’re well within your vehicle’s towing capacity. These systems can also help offset the negative effects of sagging springs or worn shocks that lead to poor towing performance. An added bonus is the ability to adjust the height of the tow truck when hooking up a trailer. Companies like Air Lift and Ride-Rite offer many additional air suspension systems that can add stability, safety and ease to your towing experience.

Can adding airbags to your existing suspension allow you to carry more cargo or tow heavier trailers? The simple answer is, no! It’s important to remember that adding any airbag system does not add more payload or towing capacity to an existing vehicle. You must take into account that other systems on your truck – including braking and cooling – are rated for specific performance. Exceeding these ratings is not safe and can be a very costly mistake, even with the addition of an airbag system that is theoretically capable of carrying the extra weight.

Since an air spring acts like an inflatable (and deflating) balloon and requires high air pressure to function effectively, you need the ability to inflate. Generally, more air (higher pressure) cushions and smooths the ride on a loaded down rig, and less air (lower pressure) returns an empty rig to a factory feel. Onboard air systems are the answer to adjusting air pressure and come in many different variations based on the system’s operating cycle. At the lighter end, a simple inflation valve can be installed on the lines that connect to the airbags. They are filled exactly like tires and work well for extended periods where static, non-adjustable air pressure is adequate. They can be fitted together or with individual lids. The advantage of individual valves is the ability to balance the vehicle side by side to compensate for uneven loads. The next step is to add electric or mechanical air valves, a compressor and an air tank to allow the pressure to be adjusted on the fly with switches in the cockpit. There are many options for a setup like this, including a 12 valve air compressor, a CO2 system, or a motorized compressor. With a little creativity, compressors and air tanks can be placed so that no bed space is compromised. A desirable side effect of having air on board your suspension is the ability to inflate tires and run air tools if the system is powerful enough.

If we looked at the suspension and air system design of a big rig, we’d find a multi-link setup with air bags fed by a highly efficient gear-driven engine compressor, tank and valvetrain. The system is pressure controlled and maintains a required ride height determined by a valve mounted on the chassis. This valve is actuated by a lever connected to the rear end; if the vehicle is loaded and the rear end leans down, the valve opens and adds more air to the airbags until the load returns to normal ride height. This arrangement allows for a light and tolerable ride when unloaded and an equally capable vehicle when fully loaded. Many aftermarket systems are available from companies such as AccuAir to mimic the large rig design using controls and valves that can be manually operated to raise or lower the vehicle to the desired height.

Ras Suspension Bolt On Towing Support For Leaf Spring Trucks

So how long do these airbags last? When properly installed and maintained, they will last as long as any other rubber product on your vehicle. Since the air spring is flexible and can be damaged by rubbing or scraping, it is very important to have a good amount of space between the bag and any mounts throughout the travel range. Any contact with the airbag will significantly shorten its life. It is also important to keep the airbags sufficiently inflated to maintain their shape even when you are not towing. Excessive wear can occur if the bag is under or over inflated. By keeping air in the bags, the vehicle can also be placed on a lift for a short time for servicing. If the vehicle needs to be on a lift for a while, it is best to release the airbags if they are the limiting suspension component. One final note about the airbags is to be aware of their maximum pressure rating to avoid premature failure.

Airbag installations, both OEM and aftermarket, have come a long way in design and functionality. With truck manufacturers jumping on the aero bandwagon, it’s clear we’ll be towing compressed air clouds in the not-so-distant future.

1. Factory flight? You weather! An optional rear air suspension system was introduced on ’14 Ram heavy-duty trucks. On the 2500, an air bag replaced the coil suspension, just like the Ram 1500. Carrying capacity is not sacrificed, and in fact the ride and handling become even better. The air suspension is also capable of equalizing loading, where load or load on the rear suspension from the trailer is automatically detected and anticipated. While the 3500 still has the Hotchkiss leaf spring system at the rear, it received an additional air suspension system on one double rear wheel. By adding airbags, the leaf springs were softened, allowing more movement of the unloaded suspension.

Rear Suspension Aids For Towing

2. Kelderman offers a different approach to the air suspension assist game with their two-stage kits that replace the rear chain hanger assembly. Instead, a new assembly that houses the air suspension connects to the leaf suspension. This design allows the initial harshness of a shock to be absorbed by the bags before being transferred to the leaf springs. The result is a very smooth ride when unloaded and capable of a normal heavy truck when fully loaded. This allows for easy day-to-day use of a large truck’s rear suspension, which is normally unyielding. Kelderman also offers linkage systems that completely replace the suspension components for an even smoother ride.

Weight Distribution Hitch Vs Air Bags Vs Roadactive Suspension(ras)

3. Some custom vehicles want a front-up, rear-down position for night driving; this is not one of those cars. This configuration benefited from the leveling capability of the auxiliary airbag installation. GBP 10.94 (approx. US $13.29) Express shipping to Germany via the international shipping program. This amount includes Seller’s stated domestic shipping cost plus applicable international shipping, handling and other charges. This amount may change until you pay. For more information, see the Global Shipping Program terms and conditions. See shipping information

Estimated GBP 7.92 Amount Confirmed at Checkout This amount includes applicable duties, taxes, handling and other charges. This amount may change until you pay. If you live in an EU country other than the UK, import VAT on these purchases is not refundable. For more information, see Global Shipping

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