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  1. Vehicle Suspension
  2. Timbren
  3. Jounce-Style Springs
  4. Rear Axle Suspension Enhancement
  5. Extra Heavy Duty
THIS ITEM IS NOT A FIT FOR
2010 Subaru Outback Wagon

Timbren Suspension Enhancement System - Rear Axle

Item # TFR250SDJ
Retail:$316.90
Our Price: $236.95
You Save: $79.95
Vehicle Suspension
Not Confirmed to Fit

2010 Subaru Outback Wagon

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Shipping Weight: 9 lbs
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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 Suspension Enhancement System - Rear Axle part number TFR250SDJ can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Vehicle Suspension - TFR250SDJ

  • Jounce-Style Springs
  • Rear Axle Suspension Enhancement
  • Extra Heavy Duty
  • Timbren

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
    • Allows the leaf spring ample movement while cushioning light loads
    • Becomes more rigid as more weight is added for a great performance when you're hauling a heavy load
      • Increases stability
      • Reduces vehicle sag
  • Works independently - side-to-side adjustment
    • Helps compensate for off-center loads
    • Reduces body roll when swerving and turning corners
  • Acts as a shock absorber, taking the brunt of bumps and rough roads
    • Extends the life of your vehicle's suspension
  • Includes 2 Aeon hollow rubber springs, custom-fit brackets, and hardware for simple installation
    • Installs directly onto frame
    • No drilling required


Specs:

  • Load-leveling capacity: 8,600 lbs
    • Timbren springs will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's recommended weight limit.
  • 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. 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 because the rubber has more travel.



FR250SDJ Timbren SES with Aeon Hollow Rubber Springs - Rear Axle

Installation Details TFR250SDJ Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Timbren Suspension Enhancement System - Rear Axle - TFR250SDJ

Average Customer Rating:  4.7 out of 5 stars   (5987 Customer Reviews)

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:

Wonderful product, was hoping theses would work so I didn't have to put air bags on truck and they exceeded my expectations.On my 2017 F250 before I installed the Timbren suspension enhancement system, my truck with stock rubber stops sit down over 3inches,but once I installed the Timbren suspension system with the same camper the truck only sit down around an inch or maybe a little less. Since I did this we traded campers with one that weight in just less than 15,000 lbs and the truck didn't change any. The truck sits level,I have no sway,braking comes from all wheels. Each time we travel (at least once or more a month)it's a joy to be to relax and enjoy the ride ,the camping and family



by:

The springs have worked wonderfully with the truck camper. Highly recommend this product

Mark

3/29/2024

still working! No complaints.



by:
2019 Ford F-250 Super Duty

Great product, gave my f250 a little more support. No sag at all when my 38 ft 5th wheel is hooked up. Etrailer got it to me in 2 days.



by:

Easy to install on a 2024 F250. They seem to do the job with no noise or fuss.



by:
Ford F-250 Super Duty

Purchased a 2023 F250 to accommodate an older Lance 815 we own. Was surprised how much "roll" this produced while driving. After the installation of the Timbren's it provided great stability and more confidence on the mountain roads.



by:
2017 Ford F-250 Super Duty

Delivery was on time. Product is a perfect fit.
I've had these before and they really helped with the extra load and reduced the rear end sway.



by:

The Timbren system was straight forward and easy to install. No doubt about it. Now to see if it dampens as all state it does. My issue wasn't Etrailer shipping it in the OEM box, it was the fact they did not even take the time to tape the tab that opens up the box. It was barely inserted when I received it and it could have had pieces fall out. Just take the few seconds to tape a box up.

Michael

5/28/2023

This product has worked very well to dampen and create a higher capacity rated frame stop over manufacturer OEM. Would certainly recommend it. We tow a fifth wheel with a rated 1700 lb pin weight but it is a bit more after loading. The Timbrens barely contact the frame.



by:

I am happy with the product. However not happy with etrailer. After I ordered my part the part went on sale before I received my order. etrailer would not work with me on the sale price, so I do not use etrailer anymore



by:

fast service

David B.

3/9/2024

Works great better than having the air bags



by:
2019 Ford F-250 Super Duty

These work great. I got them originally for a travel trailer and for loading down the bed of the truck. Since then we have gotten a 5th wheel, and these make a world of difference. I even talked a guy into getting a set of these for his truck at the snow plow shop (front, not the rears). Which reminds me, I have them on all 4 corners now. Even the RV store recommends Timbren, which I noticed yesterday.



by:
2022 Ford F-250 Super Duty

So easy to install. This is the 3rd pickup I have owned and installed Timbrins. Work really well

Edward

1/12/2024

Working 100 as advertised! Super easy install. No issues like airbags. Smoothed out the ride when hauling my 5th wheel camper



by:
2019 Ford F-250 Super Duty

I really like these Timbren bump stops. I think the best thing about them is the simplicity, both how they work and how easy the install was. I bought these when I added a dump insert (similar to a salt spreader) into my 2019 F-250. I have loaded this truck heavy before with dirt and the truck sagged tremendously and had a lot of body roll. To prevent this with the now added dump insert, I installed these. Super easy to install! Took maybe 30 min. It reduces body roll and seems to improve the ride depending on how loaded the truck is.

One unfortunate consequence to the install is that the Timbrens brought to light that I have a weak leaf spring on my passenger side, which was suspect previously.

Overall, I'm very pleased with this purchase and would buy again!



by:

Works great, easy install



by:
2022 Ford F-250 Super Duty

Works like expected. Keeps the truck looking level even under heavy loads.

Jeffrey M.

12/13/2023

Perfectly. Very pleased with this product and have shared it with friends.

Etrailer Expert

Mike L.

12/13/2023

@JeffreyM We're glad to hear that, thank you!


by:
2019 Ford F-250 Super Duty

Excellent quality. Easy to install. And work like a charm! Highly recommend this product to anybody that hauls heavy loads and doesn’t want their vehicle squatted down.



by:
2020 Ford F-250 Super Duty

Truck Squatting was reduced from 3" to 1" after the the install. The difference in ride quality while pulling my trailer is very noticeable. I did not give it 5 stars due to poor packaging and missing bolts.

Etrailer Expert

Jenny N.

6/7/2023

Fantastic news that it worked for you. Not so fantastic news that it was missing hardware. Customer Service will be in touch with you.



by:

Every thing was in the box nicely organized and I can’t wait to install them on my day off. I will add comments afterwards and pictures.



by:
2022 Ford F-250 Super Duty

just what i needed to eliminate about three inches of squat when i trailed my new fifth wheel the timbren's have about three quarters of an inch of clearance to the axle bracket so that there is no effect on the unloaded ride, only with the pin weight



by:

I have used these for over a year now and I am constantly amazed how this simple part works as well as it does. I have a 36 foot 5th wheel that has about a 1 1/2" squat when I hook it up. The load just feels much more stable and secure without so much wallowing. I had a set in my f 150 also and for the price on both vehicles, I see no downside. They are a very simple product that provides great benefits. I will buy them again for sure. I would put them on anything.

Jeremiah

2/8/2023

They still work great and i have no regrets purchasing them.



by:

Just installed but upon arrival, the item was definitely not “New” as the packaging was re-taped and missing one of the washers. Expected more from eTrailer.

Etrailer Expert

Katrina B.

6/15/2023

I deeply apologize for the condition that this package has arrived in. I can assure you that we do not sell used product. It is possible that our installation or content teams had opened the packaging for our website content. Let me get you over to our customer service department about that washer.



by:

Absolutely love them. They give you more suspension when you need it without the hassle of air bags. Installing them is a breeze.



by:

They made an immediate difference in ha ndling



by:
2024 Ford F-250 Super Duty

Easy install, works as advertised



by:
2021 Ford F-250 Super Duty

Added 1 inch spacer and it leaves 1/2 inch clearance. Perfect for my 2021 Ford F250 Tremor package (2 inch factory lift) with Lance 650 slide in truck camper to control roll on trips.



by:

this is a lot better than having to add airbags because these only work when it is needed. It doesnt affect the ride when unloaded. Airbags is contacted all the time making for a rougher ride when unloaded


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Show More Reviews

See what our Experts say about this Timbren Vehicle Suspension

  • Best Timbren Suspension Enhancement For 2023 Ford F-250 Super Duty
    Timbrens are a really smart idea to add suspension enhancement to your 2023 Ford F-250 Super Duty, and the best option that fit your truck are the following part number: - Timbren Suspension Enhancement System # TFR250SDJ The # TFR250SDJ - which fit both the 2WD and 4WD models of F-250 - are the best because they are double-convoluted, which means they have more "give" in them than the single-convoluted Severe Service Kit # TFRTT350J. Those are for things like work trucks, and would give...
    view full answer...
  • How Tall are Timbren Springs that Fit 2020 Ford F-250
    There are two Timbren kits that fit your 2020 Ford F-250 we have the # TFR250SDJ which has an 8,600 pound capacity and fits 2- and 4-wheel drive models. And second we have # TFRTT350J which is rated for 8,000 pounds and also fits 2- and 4-wheel drive models. The springs in kit # TFR250SDJ are 4-1/2 inches tall and for kit # TFRTT350J they are 3-9/16 inches tall plus a spacer. So plus the mounting brackets that puts them at 6-7/8 inch and 7 inch.
    view full answer...
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  • Height of Timbren Aeon Hollow Rubber Springs for Rear Axle on 2022 Ford F-250 Super Duty
    The height of the Aeon hollow rubber springs on the Timbren Suspension Enhancement System - Rear Axle # TFR250SDJ is 4-1/2". The overall height for the Timbren system is 6-7/8". See the helpful diagram below which shows both measurements. I have also attached a review video for your reference.
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    Image 1 for
  • Which Timbren Suspension Kit for 2021 Ford F-250 Tremor Package
    The Timbren # TFR250SDJ is the correct Timbren suspension enhancement for your 2021 Ford F-250 Super Duty with the Tremor package and will work well for you. This will give you the support you are needing for carrying the weight you mentioned in the bed of your truck.
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  • Difference Between Timbren Suspension Enhancement for Ford F-250 and F-350
    The spacer like the # A25723-90AH00 is an optional part that can be used if you need it to achieve a 1/2" to 1-1/2" gap between the spring and point of contact. The # TFR250SDJ and # TFR350SDJ actually have a different overall height. The # TFR250SDJ is 6-7/8" tall while the # TFR350SDJ is 7-1/2" tall. Outside of that there is no real difference and they have the same capacity. Keep in mind, the # TFR250SDJ is designed to fit the F-250 and the # TFR350SDJ is for the F-350.
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    Image 1 for
  • Recommended Suspension Enhancement for 2022 Ford F-250 With Plow and Salt Spreader
    The Timbren Suspension Enhancement System # TFR250SDJ will work, but I recommend the # TFRTT350J instead. This is the severe service kit which is designed for applications like your salt spreader where the truck has a constant load. The difference is that the # TFRTT350J already has the springs compressed which will give you a better ride with the spreader. Normally I would recommend air bags like the # F95FV since you won't have a lot of weight in the truck outside of winter. These will...
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  • Height of Timbren Jounce Style Springs for 2020 Ford F-250
    The springs themselves included with the Timbren Rear Suspension Enhancement System # TFR250SDJ for your 2020 Ford F-250 measure 4-1/2" tall. When the mounting bracket is added you're looking at a total overall height of 6-7/8". I have attached an image to assist. Timbren does recommend that you have around 1/2" to 1-1/2" of clearance between the spring and contact point when the truck is empty. I have attached full installation manual below that you can also look through.
    view full answer...
    Image 1 for
  • Comparing Timbren and SumoSprings Suspension Enhancement for 2017 Ford F-250
    All of the jounce style suspension enhancement kits we offer work in the same way as they basically give the rear suspension additional support as the suspension gets compressed. The Timbrens like the part # TFR250SDJ that you referenced are the most popular option that we sell a lot. They are easy to install, lower priced, and provide really great support. They do have a tendency to make the ride a bit harsh when the vehicle is unloaded which is their biggest drawback. The other jounce...
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  • Will the Timbren Suspension Enhancement System Fit a Lifted 2019 Ford F-250
    In regards to the Timbren Suspension Enhancement System part # TFR250SDJ which is a fit for a 2019 Ford F-250, these will fit lifted applications but you'll need to add spacers to make up the difference. The Timbren Spacer part # TA25722-90P00 for 1/2" or part # A25723-90AH00 for 1". Please note, you'll also need to make a trip to the hardware store for longer bolts. We don't carry the Timbren Ford F-250 Spacer Kit at this time but it comes with the same spacers as the above.
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  • Choosing Correct Timbren Suspension Enhancement for 2023 Ford F-250 Towing 5th Wheel
    The # TFR250SDJ is the right choice for your 2023 Ford F-250. The # TFRTT350J has a different design for severe service which would be something like a slide-in camper or salt spreader you're keeping in the bed of the truck all the time. The regular Timbren Suspension Enhancement System # TFR250SDJ is what you want for support while towing your 5th wheel in the summer. I have attached an installation video below for your reference.
    view full answer...
  • Does Back End of Ford F-250 Need to be Raised to Install Timbren Suspension Enhancement TFR250SDJ
    Yes, you will need a deep well 15mm socket, though you do not need to lift the back end of your 2020 Ford F-250 to install the Timbren Suspension Enhancement System # TFR250SDJ.
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  • Can a Rear Sway Bar be Installed with Firestone Air Bags?
    There will be no issues at all installing a rear sway bar and air bag kit on your 2015 Ford F-250. As examples, the Firestone # F2597 will install in a different location than the Roadmaster # RM-1139-173-00. I included install videos of both of these products that show this as well. I do need to say that the # RM-1139-173-00 is specifically designed for vehicles that do not have a factory sway bar though. If you do currently have a factory one and are replacing it, you will need the #...
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  • What Is Best Suspension Enhancement for 2019 Ford F-250 with Truck Bed Camper
    If you were to use a Timbren kit for rear suspension enhancement for your 2019 Ford F-250 you'd want the lighter duty # TFR250SDJ as the 350 version would be very harsh and not comfortable. But if you want the best option I would highly recommend the RoadActive Suspension kit part # RAS3611-SLHD as this gives you adjustable suspension support that will actually improve your handling and ride quality unlike other options like the Timbrens that make the ride quality noticeable harsher.
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  • Can Timbren Suspension Enhancement System TFR250SDJ be Used on a 2021 Ford F-350
    The difference between the Timbren Suspension Enhancement System part # TFR250SDJ and part # TFR350SDJ is in the part number, the former is for F-250's and the latter is for F-350's. The version for F-350's is taller so they will engage sooner. I don't recommend using the version for F-250's on a F-350 as they won't work as well but they will fit.
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  • Timbren Suspension Enhancement 2020 Ford F-250 Severe Service Kit
    That is a fantastic question. The Timbren # TFR250SDJ is their standard use suspension enhancement system. This is best suited for general everyday use. The Timbren # TFRTT350J is their severe service kit. Per Timbren- We recommend Severe Service kits be used with a slide-in camper or salt spreader. In fact, any application that requires maximum stability (reducing roll and sway) calls for a Severe Service upgrade. While both will fit your 2020 Ford F-250 4x4 the one you choose will...
    view full answer...
  • Is The Timbren Suspension Enhancement System # TFR250SDJ Supposed To Spin
    Hey Frankie, The bracket for the Timbren Suspension Enhancement System # TFR250SDJ has a locknut in it that makes it feel like the bolt (part #4) is fully tightened when it's not. Their techs have stated that you just have to push past this point and keep going to fully pull the spring up and lock it in place.
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    Image 1 for
  • Comparing the Timbren SES Part TFR350SDJ and Part TFR250SDJ for a Ford F-250/F-250
    The Timbren Suspension Enhancement System part # TFR350SDJ is correct for your 2017 Ford F-350 whereas the Timbren Suspension Enhancement System part # TFR250SDJ is for a 2017-2019 Ford F-250. The brackets on both of these systems are the same so you can use one on the other but the F-250 kit has a 4-1/2" tall spring whereas the F-350 kit has a 5-3/16" tall spring. Therefore, the F-250 kit will not engage as soon as the F-350 kit when used on a F-350. The later engagement will equate to...
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  • Which Timbren Suspension Kit for 2017 Ford F-250
    There are 2 Timbren helper spring kits for the 2017 Ford F-250. First we have # TFR250SDJ which has an 8,600 pound capacity and fits 2- and 4-wheel drive models. And second we have # TFRTT350J which is rated for 8,000 pounds and also fits 2- and 4-wheel drive models. The higher weight capacity and the fact it's not as popular as the lower rated kit is why there is a price difference. I prefer to recommend the lower capacity kit as it will give you a smoother unloaded ride quality.
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  • Comparing Timbren TFR250SDJ and TFR350SDJ for a Ford F-250/F-350
    The only difference between the Timbren Suspension Enhancement System part # TFR250SDJ which is for a Ford F-250 and the Timbren Suspension Enhancement System part # TFR350SDJ which is for a Ford F-350 is that the latter comes with a 1/2" spacer, the spring and bracket are the same. If you want to go with the former and purchase the spacer separately then you'd need the Timbren 1/2" Spacer for Raised Frame Vehicles part # TA25722-90P00.
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  • Best Non-Air Lift Suspension Enhancement for 2022 Ford F-250 Super Duty 4WD
    To give your 2022 Ford F-250 Super Duty some additional support, both of the Sumo Springs and Timbrens would be great options. The Sumo Springs Solo Custom Helper Springs - Rear Axle # SSR-127-54 are made of a durable, high-density microcellular urethane and have a 2,800 lbs weight capacity, though they will not increase your vehicle's weight-carrying capacity. With the microcellular urethane the # SSR-127-54 will give you a smoother ride. The Timbren Suspension Enhancement System -...
    view full answer...
  • Choosing the Correct Timbren Suspension System For a 2019 Ford F-250 Super Duty
    With towing a 12,000lb trailer with your 2019 Ford F-250 the Timbren Suspension Enhancement System # TFRTT350J is the better choice. Your trailer will likely only add 1,200-1,800lbs of tongue weight to your truck. So you will only be using the Timbren to help reduce rear end sag from the trailer. The Timbren # TFR250SDJ is their severe service springs. These are designed for trucks that always have a large amount of weight added to their bed. Generally used with slide in campers, tool...
    view full answer...
  • Height Difference Between Timbren Kits FR250SDJ vs FR350SDJ for 2018 Ford F-350
    The Timbren # TFR250SDJ and the # TFR350SDJ that you referenced use the same bracket so the overall height difference is what you mentioned of 7-9/16 inches for the taller 350 and 6-7/8 for the shorter 250.
    view full answer...
  • Does Timbren Suspension Kit for 2023 Ford F-250 Fit with B and W Turnoverball
    Yes, the Timbren suspension kit part # TFR250SDJ that fits your 2023 Ford F-250 does also fit with the B and W Turnoverball hitch part # BW73FR.
    view full answer...
  • Height of Timbren Suspension Enhancement Springs with Bracket # TFR250SDJ
    The combined height of the Timbren Suspension Enhancement System - Rear Axle # TFR250SDJ is 6-7/8 inches. I went out to our warehouse to measure them for you and also have attached a photo for you to see where the measurement was taken.
    view full answer...
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Info for this part was:

Employee Leah B
Edited by:
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Employee Mike L
Expert Research:
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Employee Andrew K
Video by:
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Employee Jonathan Y
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Employee Jeff D
Installed by:
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Updated by:
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