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  1. Trailer Leaf Spring Suspension
  2. Timbren
  3. Boat Trailer
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Timbren Trailer Suspension Enhancement System Light-Duty Trailers 1,000 lbs

Timbren Trailer Suspension Enhancement System Light-Duty Trailers 1,000 lbs

Item # TTRA1702
Our Price: $252.45
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Trailer Leaf Spring Suspension
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Shipping Weight: 4 lbs
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Product Expert Kathleen M

Is this right for you? Product Expert Kathleen M says:

Yes, if you:

  • Max out your trailer's capacity and want something to help support the load more effectively
  • Have issues with lots of sag and roll in your camper and need to stiffen up the suspension

No, if you:

  • Sometimes tow your trailer empty and don't to feel the rubber spring engage with the axle when you hit bumps
  • Have issues with your wheels bouncing after hitting bumps and need something to control that rebound
  • Want to avoid drilling into your trailer frame
Designed for smaller utility and camping trailers. Hollow rubber springs sit above the axle, helping to stabilize and level the trailer while also absorbing road shock. Sway is reduced and trailer tracking behind the vehicle is improved. Great Prices for the best trailer leaf spring suspension from Timbren. Timbren Trailer Suspension Enhancement System Light-Duty Trailers 1,000 lbs part number TTRA1702 can be ordered online at or call 1-636-306-4830 for expert service.
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Timbren Trailer Leaf Spring Suspension - TTRA1702

  • Boat Trailer
  • Camper
  • Car Hauler
  • Snow Trailer
  • Utility Trailer
  • Leaf Spring Enhancement System
  • 1000 lbs
  • Single Axle
  • Rubber Springs
  • Timbren

Designed for smaller utility and camping trailers. Hollow rubber springs sit above the axle, helping to stabilize and level the trailer while also absorbing road shock. Sway is reduced and trailer tracking behind the vehicle is improved.


  • Improves suspension, handling and safety
  • Provides additional support as needed so you always have a smooth, comfortable ride
    • Allows the leaf spring ample movement while cushioning light loads
    • Becomes more rigid as more weight is added
      • Increases stability providing great performance while hauling heavy loads
      • Raises trailer ride height
  • Works independently side-to-side
    • Helps compensate for off-center loads
    • Reduces body roll when swerving and turning corners
    • Works to eliminate trailer sway
  • Acts as shock absorbers, taking the brunt of bumps and rough roads
    • Extends the life of your trailer's suspension


  • Application: typically used on light duty trailers utility and camping trailers
    • For tandem axle applications, use 2 kits
    • Designed to work with a suspension system that is in good working order
  • 2 Hollow rubber springs, mounting brackets and hardware are included for simple installation
    • Installs directly onto frame
    • Drilling required
  • Capacity: 1,000 lbs
    • Do not exceed the trailer's weight-carrying capacity
  • Spring Dimensions:
    • No load: 2-3/4" tall x 3-3/8" diameter
    • Loaded: 1-1/8" tall x 5" diameter
  • Limited lifetime warranty satisfaction guarantee

An example of sag on the rear suspension under a heavy load.

The resistance from Timbren's Suspension Enhancement System works with the trailer's suspension to keep it level, which improves driving performance for your vehicle. When hauling heavy loads, you will often see the rear of the vehicle sag, while the front end raises up. In this case, the rear axle is handling not only the weight of the cargo, but more of the vehicle's weight as well. Since less weight is on the front axle, the front tires are making significantly less contact with the road, reducing traction, which decreases the vehicle's steering and stopping performance.

Under pressure, hollow rubber springs are designed to progressively support the suspension.

The Timbren system has a custom bracket that will be bolted onto the trailer frame above the axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down to where the bottom of the spring sits one inch above the axle. The inch of clearance allows the existing factory suspension to operate normally under light loads and standard terrain, ensuring the smooth, comfortable ride you are used to.

Animation of a standard Timbren rubber spring

Timbren Suspension Enhancement Systems are designed to work progressively. When the hollow rubber springs are compressed, the convoluted design causes them to quickly collapse along the folds. Once the folds are compacted, the stacked barrel shape provides increased resistance, stiffening the suspension and keeping the trailer level.

Timbren suspension system works to prevent body roll

Each hollow rubber spring works independently to support the driver's or passenger's side of the trailer. This is helpful when you swerve or make sharp turns. Each spring is activated when it is needed, so body roll is greatly reduced. The independent action also works well when hauling off-center loads.

An example of a trailers swaying without Timbren SES

Timbren Suspension systems help compensate for all of the probable causes of trailer sway from unbalanced loads to gusts of wind from passing vehicles. Installing Timbren will make your trailer track better behind your vehicle and provide a safer more comfortable towing experience.

An example hauling a heavy load with and without Timbren.

When hauling heavy loads, the resistance from Timbren's hollow rubber springs will work with the trailer's suspension to raise the trailer's ride height. This is will take additional strain off of the hitch components and help the trailer ride easier.

TRA1702 Trailer Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Installation Details TTRA1702 Installation instructions

Customer Satisfaction Score:


See what our Experts say about this Timbren Trailer Leaf Spring Suspension

  • How Much Does a 1977 22 Foot Ideal of Idaho Travel Trailer Weigh
    The best way to determine the weight of your 1977 Ideal of Idaho travel trailer is to take it to a truck scale, weigh station, or place where they sell bulk gravel and ask to weigh the trailer. I have included a link that should help. From what I could find (I could only go as far back as 1980) but in that year on a 22 footer the weight was about 4,000 pounds. If the weights and capacities are not on a plate on the trailer frame somewhere then to know for sure you are going to need a scale.
    view full answer...
  • Trailer Suspension Upgrade For a Jayco Swift 145R Single Axle Camping Trailer
    The Timbren Trailer Suspension Enhancement System, part # TTRA1702 is designed for light duty trailers. This system has a weight capacity of 1,000 lbs. You do not want to exceed the trailers weight carrying capacity. Also, this system is for trailers with a suspension system that is in good working order. If this system meets the weight requirements for your Jayco trailer, then it will fit your trailer if there is room on the frame, above the axle, to drill holes and install the rubber...
    view full answer...
  • Compatibility of Timbren Suspension for Light Duty Trailers on 1957 Cardinal Travel Trailer
    The Timbren Trailer Suspension Enhancement System Light-Duty Trailers 1,000 lbs # TTRA1702 will be a great help in reducing body roll and helping dampen the bounce. Based on your measurements this will immediately take on load and stabilizing while still having room for suspension movement and further assistance so it is a great option for you.
    view full answer...
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  • Timbren Suspension Enhancement Recommendation for Bottoming Out Trailer
    I would recommend the part # TTRA1702 for your trailer as it will provide you with additional suspension support so that your suspension stops bottoming out harshly and would not raise the suspension. Since your trailer is a tandem you would need two of these kits. That being said I have to recommend you lighten up the load you carry with your trailer as you are exceeding the axle capacity and could potentially damage things or hurt another driver. This is actually the root of your problem.
    view full answer...
  • Solution for Reducing Sag When Loading Barbeque Pit Onto Trailer
    Replacing the leaf springs on your trailer with higher capacity springs may not resolve the sag you are seeing when the BBQ is loaded onto the trailer. I do not recommend going this route, as higher capacity springs will result in a stiff ride (which may lead to damage on your BBQ pit) and may also require a completely new hanger orientation and size. I also recommend checking to make sure that you are not exceeding the weight capacity of your trailer. Adding aftermarket products to the...
    view full answer...
  • Timbren Trailer Suspension Installation for Trailer with Narrow U-Bolt Plate
    The Timbren Trailer Suspension Enhancement System # TTRA1702 doesn't have to fit between the u-bolts of the trailer axle. All that is required is that the plate attaches to the frame and the rubber spring touches the axles so you could mount is so that the rubber spring contacts the axle to the inside or the outside of the u-bolts on the axle if needed.
    view full answer...
  • Suspension Enhancement on a Trailer that Bottoms Out
    We don't offer airbags, like what is normally installed on a tow vehicle, for trailers. We do have jounce-style helper springs that may work for you. The Timbren Trailer Suspension Enhancement System # TTRA1702 install onto your trailer's frame and help support the existing suspension. They are likely to help you from bottoming out when crossing the creek however they will make every day driving pretty rough. So if this is the route you go I recommend installing them when you're going...
    view full answer...
  • How to Improve a Rough and Bumpy Ride on a 2,000 Pound Fruefoff Trailer
    I do have some suggestions. First off, make sure that the tongue weight is not too heavy or light. Typically tongue weight should be 10 to 15 percent of the gross trailer weight. A tongue weight that is too heavy would cause the rear end of the trailer to be more bouncy. Getting the trailer loaded properly will be the first thing you can do. As far as aftermarket suspension enhancement using a system like # TTRA1702 would help but it is only rated for 1,000 pounds for the set. All the...
    view full answer...
  • Timbren Trailer Suspension Enhancement Options
    It sounds like you may need to look into the state of the suspension on your trailer. If there is so much movement that it has caused the tires to damage the fenders then something is not quite right. The Timbren springs like # TTRA1702 are designed to be installed on a trailer that has a suspension system that is in good working order so making sure yours is good would be the first step. I have included a link to the installation instructions for you to view. These springs are 2-3/4...
    view full answer...
  • What Trailer Suspension Enhancement is Best for Preventing Axle From Contacting Trailer Frame
    If your trailer suspension is in good working order and your trailer has not been overloaded the axles should not contact the frame at any time, even on bumpy roads. However we do offer suspension kits in various ratings that can help prevent axle-to-frame contact. The link provided will take you to our product page showing five Timbren trailer suspension enhancement products that are compatible with both double-eye and slipper spring suspensions. These hollow rubber springs install on...
    view full answer...
  • Recommended Rubber Springs for Suspension Enhancement on a Trailer With 800 lbs Max Load
    If you are wanting to use rubber springs then I recommend the Timbren Trailer Suspension Enhancement System for Light-Duty Trailers, part # TTRA1702. These springs have a capacity of 1,000 lbs and measure 2-3/4 inches tall and 3-3/8 inches diameter with no load, and 1-1/8 inches tall and 5 inches diameter when loaded. Even though these do not fit the height and diameter that you want, they are the best solution for improving your trailer's ride because they were specifically designed...
    view full answer...
  • Dimensions of Timbren Trailer Suspension Enhancement System
    For suspension enhancement on your trailer you'll want a Timbren spring for trailers like # TTRA1702 which measure 2-3/4 inches high. I've also linked our selection of Timbren springs for trailers for you.
    view full answer...
    Image 1 for
  • Will Timbren Trailer Suspension Enhancement System Work With Concession Trailer
    The Timbren Trailer Suspension Enhancement System, part # TTRA1702 is designed to be installed directly on the trailer frame. It has a weight capacity of 1,000-lbs. As the instructions state, on trailers the springs will be in constant contact with the trailer frame so that is expected and the springs will work well for you. When under a load the springs will compress to a height of 1-1/8 inches so you will need a little more than that when no load is on the springs.
    view full answer...
  • Will Timbren Trailer Suspension Enhancement System TTRA1702 Work On Utility Trailer With 2000lb Axle
    The Timbren Trailer Suspension Enhancement System Light-Duty Trailers 1,000 lbs # TTRA1702 have a combined rating of 1000lbs, and not 1000lbs per spring. Since your leaf springs are supporting the weight on the axle, suspension enhancement like this does not need to meet the exact rating of the axle, and is just designed to help the suspension out. Keep in mind suspension enhancement will not increase the load ratings of your trailer. These springs will work perfectly on your trailer...
    view full answer...
  • Diameter of Bottom of Timbren TTRA1702 Aeon Springs
    The bottom portion of the Timbren # TTRA1702 Aeon spring that would contact the axle beam measures 2-3/8 inches in diameter, according to my contact at Timbren. I've linked to a product description video featuring the # TTRA1702 Timbren Aeon springs.
    view full answer...
  • Can The Timbren TTRA1702 Work On A 48 x 96 Harbor Freight Haul Master Utility Trailer
    As the max working load of your 48" x 96" Harbor Freight Haul Master utility trailer is 1,720 pounds, the Timbren Trailer Suspension Enhancement System Light-Duty Trailers 1,000 lbs # TTRA1702 will have no issue working with it. However, this does need to have at least 3" of clearance as this will be the overall height of the spring and bracket once installed. I was unable to find the clearance listed anywhere so thought it was a good idea to let you know.
    view full answer...
    Image 1 for
  • Recommended Way to Improve Ride of Travel Trailer With 2,000 lb Axle
    There are options made specifically to address trailer suspension and smooth out the ride, though I can't see a longer, higher-rated leaf spring being the answer. I just can't see this working out as a solution, so I think the best option is a Timbren system that fits below the frame: - Timbren Trailer Suspension Enhancement System Light-Duty Trailers # TTRA1702 The Timbren # TTRA1702 sits above the axle (or leaf spring if they are above the axle) and takes the brunt of the weight to...
    view full answer...
  • How To Determine If Timbren Trailer Suspension Enhancement # TTRA1702 Will Fit Single Axle Trailer
    The Timbren Trailer Suspension Enhancement System # TTRA1702 is 2-3/4" tall with no load on the spring. This particular system is designed to mount to the frame with the included bracket(see image) and when the suspension compresses the axle will push into the spring. You will need to measure the distance from the top of the axle to the frame to determine if this is an option for your trailer. It is okay to have the spring touching the axle or being compressed up to roughly 1/2". If your...
    view full answer...
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  • Recommendation of Timbren Trailer Suspension Enhancement System for a 3,000-Lb Utility Trailer
    I would recommend to use the Timbren Trailer Suspension Enhancement System , part # TTRA1032, on your 3,000-lb utility trailer. This enhancement system is for medium-duty trailers. It has a weight capacity of 7,000 lbs. This does not mean that you will be able to carry more weight than what your trailer is rated for, but it will help reduce sag and sway when you put the load of your equipment on the trailer. It is always better to have more weight capacity than not enough weight capacity....
    view full answer...
  • Small Popup Trailer Leaf Spring Suspension Enhancement
    The Timbren # TTRA1032 is a great help to a trailer. For your small trailer you will want the Timbren Trailer Suspension Enhancement System Light-Duty Trailers 1,000 lbs # TTRA1702. It sounds like this is exactly what you are seeking.
    view full answer...
  • What Welding is Required to Install Timbren Trailer Suspension Enhancement System
    To install Timbren helper springs # TTRA1032 the included bolt will need to be tack welded to the top plate, the top plate then gets welded to the bottom of the frame above the leaf spring stack. The 3 lower brackets will need to be welded together to get 3 inches of space (unloaded) between the lower plate and upper frame bracket. Then the lower disc assembly gets welded to the u-bolt plate. I have included a link to the installation instructions with more information and diagrams. You...
    view full answer...
  • Rear Suspension Enhancement System For a 2007 20 Lark Tandem Axle Enclosed Trailer
    Before you select a suspension enhancement system for your 2007 20 Lark tandem axle enclosed trailer you should verify the gross trailer weight of your trailer. Once you have determined the overall weight of your trailer when fully loaded, you can choose a suspension system that will effectively reduce sag and sway and provide a more comfortable ride. The Timbren Suspension Enhancement System for Light-Duty Trailers, # TTRA1702, that you referenced will not mount to an I-beam style trailer...
    view full answer...
  • Suspension Enhancement Recommendation for a Fifth Wheel Trailer
    For suspension enhancement for a trailer we have a similar setup to an air kit, but it's actually a rubber spring instead. For a 1,000 lb axle kit you would want the part # TTRA1702. For a 7,000 lb axle kit you would want the part # TTRA1032. For a 10k axle kit you would need the # TTRA15252. Timbren's Suspension Enhancement System has hollow rubber springs that absorb the brunt of the force on the trailer's frame, helping to reduce sag and sway ensuring better handling and tracking behind...
    view full answer...
  • Recommended Timbren Suspension for Trailer With Roughly 1000-lb Load
    Usually when a trailer is bouncing around a lot behind tow vehicle, it starts with an improperly loaded trailer that has too much tongue weight and weight that is not properly distributed. Typically a trailer should have 10-15% of the total weight on the tongue of the trailer; you can measure your trailer's tongue weight with a tongue weight scale like the Sherline # 5780. Your tongue weight should be in the 200 to 270-lbs range using the 10-15% guideline (when fully loaded). When it comes...
    view full answer...

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