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  1. Vehicle Suspension
  2. Timbren
  3. Bump Stops
  4. Towing/Load Leveling
  5. Rear Axle Suspension Enhancement
  6. Extra Heavy Duty
THIS ITEM IS NOT A FIT FOR
2018 Jeep JK Wrangler
Timbren

Timbren Rear Suspension Enhancement System

Part Number: TRESOS1
$510.60
Retail:$600.71
You Save: $90.11
Vehicle Suspension
Not Confirmed to Fit

2018 Jeep JK Wrangler

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8,600-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use. Great Prices for the best vehicle suspension from Timbren. Timbren Rear Suspension Enhancement System part number TRESOS1 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Vehicle Suspension - TRESOS1

  • Bump Stops
  • Towing/Load Leveling
  • Timbren
  • Rear Axle Suspension Enhancement
  • Extra Heavy Duty
  • Suspension Only

8,600-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.


Features:

  • Improves suspension, handling, and safety
  • Provides additional support as needed so you always have a smooth, comfortable ride when towing or hauling gear
    • 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
      • Reduces vehicle sag
  • Works independently - side-to-side
    • Helps compensate for off-center loads
    • Reduces body roll when swerving and turning corners
  • Acts as shock absorbers, taking the brunt of bumps and rough roads
    • Extends the life of your vehicle's suspension
  • Includes 2 hollow rubber springs, vehicle-specific brackets and hardware
    • Replaces axle bump stops
    • Drilling required for installation


Specs:

  • Capacity: 8,600 lbs
    • Do not exceed the vehicle's weight-carrying capacity
  • Limited lifetime warranty
  • Satisfaction guarantee


An example of sag on a vehicle's rear axle under a heavy load

Whether you're hauling heavy loads in your bed or cargo area or you're towing a trailer, you will often see the rear of your vehicle sag while the front end rises. In these cases, the rear axle is handling not only the weight of the cargo, but also more of the vehicle's weight. Because less weight is on the front axle, the front tires are making less contact with the road. Overall handling - traction, steering, and braking - is negatively affected. But the resistance from Timbren's Suspension Enhancement System works with your factory suspension to keep your vehicle level and improve your driving experience.


Diagram of the Timbren spring installed

The Timbren system comes with custom-fit brackets that are bolted onto each frame rail above the rear axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down to where the bottom of the spring sits, 1" 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 that 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 increases resistance, stiffening the suspension and keeping your vehicle level.


Timbren suspension system works to prevent body roll

Each hollow rubber spring works independently to support the driver's side or passenger's side of your vehicle. 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 you are hauling off-center loads.


An example of a trailers swaying

Because the vehicle handles better with the springs, less turbulence will be passed along to the trailer, and this helps to keep the trailer in line. Your driving comfort is further enhanced if the trailer does begin to sway (from a gust of wind or a passing semi), because the movement from the trailer is not transferred to your vehicle. This also works to make the sway subside more quickly.


An empty truck on a bumpy road without Timbren

Another great feature of the rubber construction is that the springs absorb most of the road shock, creating a smoother, more stable ride overall when loaded. Wear and tear on the factory suspension is also lessened because the rubber springs work to prevent bottoming out on rough roads.


Timbren Suspension Enhancement Compared to the Competition

Timbren's Suspension Enhancement Systems are much easier to install than air springs - there are no air hoses to run, no compressors or gauges to hook up, and no manual adjustments to make. The rubber construction makes Timbren's springs more elastic than similar products constructed of microcellular urethane. And more elasticity allows for a more comfortable ride when loaded or towing because the rubber has more travel.



RESOS1 - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Installation Details TRESOS1 Installation instructions

This Product Fits The Following Vehicles




Video of Timbren Rear Suspension Enhancement System
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for All About the Timbren Rear Suspension Enhancement System-TRESOS1

Hello everybody, this is Jeff at etrailer.com. Today we're gonna take a look at the Timbren Rear Suspension Enhancement System. Now this is designed to fit universal applications. It will fit medium duty vehicles that have five inches or less from the top of the frame to the top of your lead springe rear suspension. And on the product page for this part number if you go to the very bottom, it will list some of the vehicles that this will work on. Now, this kit will improve your suspension, your handling and safety, provides additional support, as needed, so you always have a nice, smooth, comfortable ride.

It will allow the least spring ample movement while cushioning any light loads, so it does not affect the empty ride of the vehicle and it becomes more rigid as more weight is added so it increased the stability which provided great performance while hauling heavy loads and it will even help reduce vehicle sag It will work independently side to side help compensate for any off center loads and will reduce body roll when swerving and turning corners. It will also act as shock absorbers taking the brunt of any bumps or rough roads helps extend the life of your vehicle suspension. Now this kit will include everything laid out here on the table the two Aeon hollow rubber springs the vehicle specific brackets and the hardware for simple installation. This does replace the axle bump stops and drilling is required for installation. Few specs on this: Capacity is 8,600 pounds.

Now these Timbren springs will not increase your vehicles weight carrying capacity so you do not want to exceed the manufacturer`s recommended weight limit. And these are designed to work with a suspension system, that is in good working order. But that should do it for the review on the Timbren Rear Suspension Enhancement System.

Ratings & Reviews

4.7

3500 reviews
5 Stars
(5484)
4 Stars
(825)
3 Stars
(190)
2 Stars
(116)
1 Star
(183)
Review sort icon
8,600-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.

by:

I have used this before and it works very well



by:

Works great on my Honda odessey !! Great customer service as always!



by:

The product first arrived in a damaged box with one of the washers missing, but ETrailer did resupply that. The hardest part was finding a shop able (needs the right tools to depress coil springs) and willing (a potential liability issue messing with suspension) to replace it for a reasonable cost. Eventually a local tire shop agreed to. This was for a 2014 Honda Odyssey, especially for pulling a pop-up. Took two camping trips last summer, one before and one after installation, and I have been pleased with the added stiffness in the rear suspension. It made about 1 to 1.5 inch of difference in resting position when fully loaded and towing and has helped smooth out bumps and humps in the road - both when towing and not.



by:

Very fast shipping, had product in 2 days! Very easy to install. Hardest part was lifting the RV.



by:

Fast delivery. Disappointed with the instructions. Sense the item was ordered vehicle specific. The instructions said tighten bolts to manufactures specifications.



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Fast Shipping



by:

BIG difference in handling a load or trailer ... what a great product!!!



by:

I put this product on my Trooper. The install was easy is you take the back wheels off. I towed this weekend and I did not bottom out. If they hold up over time, this is a great product.



by:

A simple, passive approach when you need a little less sag, like towing a trailer.



by:

Have not driven yet, just installed. Added Monroe coil-overs as well, thanks etrailer.



by:

Delivery was fast, instal was quick & easy. Later today I will see how they work when I hook up to the 5th wheel. By all indications right now I believe they exceed my expectations.



by:

Put them on and it is exactly what I need to keep truck level when hauling fifth wheel. Easy to install too



by:

Price was good compared to other sites. Shipped very fast. Installation was very easy.



by:

This is a excellent product. I had them in my F-250 and when I bought my new RAM it was the first accessory I added. Best bang for the buck suspension product on the market today!



by:

This product was delivered quickly and efficiently. The quality of the product is excellent and look forward to seeing how they work when we are towing our trailer.



by:

Fit and functions as described. Installation was simple on my '05 Silverado.



by:

It took longer to move the floor jack under the truck then to install them. Maybe 10 minutes total. Thanks Rex



by:

Excellent quality, good prices and great shipping ! Thanks



by:

15 mins to install and what a difference…. Went from a few inches of sag in the rear to only an inch and over 1000lbs tongue weight didn’t know the trailer was attached to the truck



by:

Noticed a significant decrease in the sag on my 250. Pulled great and would definitely recommend these to anyone on the fence about purchasing



by:

Holding up good a year after purchase, work great for pulling my camper



by:

Great product, great service. No more blinding oncoming traffic when I’m loaded or pulling my boat. Truck stays nice and level



by:

Fast delivery about 3 days easy to install and seems to work fine. Ride is a little stiffer with loaded trailer but not bad.



by:

Received item ordered after short delay - wrong number on address - Support was helpful and to the point - Information rang true and item was delivered when expected - Good quality product and changed the character of my vehicle - More than I expected - Well worth the money



by:

Timbrens are an awsome product!


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See what our Experts say about this Timbren Vehicle Suspension

  • Availability of Air Bags for 2000 Blue Bird TC2000
    Hello Josue; I'm sorry to say we don't carry any air bag kits for a 2000 Blue Bird TC2000. The only suspension enhancement options we have are the Timbren SES # TBBFTC2000 (front) and # TRESOS1 (rear). If you have air bags on it already, and they're Firestone, we may have replacements but I would need the part number off of the air bags. If you prefer air bags over the Timbren I would contact Firestone directly to see what they have under their heavy-duty systems for a bus.
    view full answer...
  • Recommended Timbrens for a 2006 Freightliner FC70 Chassis
    Hey Jim, welcome back! I checked with Timbren and found a couple of options for rear and front suspension support that will work with your 2006 Freightliner FC70 Chassis. For the rear end we have the Timbren Rear Suspension Enhancement System item # TRESOS1 with a 8,600 lbs capacity and the item # TURMDH with a massive 16,000 lbs capacity. Unless you're towing a heavy trailer, I recommend the item # TRESOS1 with a 8,600 lbs capacity. For the front end we have the Timbren Front Suspension...
    view full answer...

Do you have a question about this Vehicle Suspension?


Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Robert C
Installed by:
Robert C
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
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Dustin K
Employee Chris R
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Employee Mary K
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Mary K
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