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2003 Lexus LX 470
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Timbren

Timbren Suspension Enhancement System - Rear Axle

Part Number: TFRSDE
7298 Reviews | 11 Questions
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$496.65
Retail:$584.30
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 Vehicle Suspension
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2003 Lexus LX 470

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timbren vehicle suspension towing/load leveling rear axle enhancement

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12,000-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 TFRSDE can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Vehicle Suspension - TFRSDE

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • 12,000-lb Load Support: Keeps your truck level under heavy loads for safer towing and hauling.
  • Smoother, Safer Ride: Hollow rubber springs absorb road shock and reduce body roll on turns.
  • Protects Suspension Parts: Takes the brunt of bumps to prevent bottoming out and reduce wear.
  • Handles Off-Center Loads: Each spring works independently to stabilize uneven cargo or swerves.
  • No-Drill DIY Setup: Bolts directly to the frame with custom-fit brackets and hardware included.

Features to know about

Keep the Truck Level When It Matters Most: 12,000-lb Load-Leveling Support

Heavy trailers, campers, or bed loads can make the rear sag and throw off steering and braking. The Timbren Suspension Enhancement System adds up to 12,000 lbs of load-leveling capacity to keep your truck level and confident under weight. The hollow rubber springs sit above the rear axle, adding support only when needed so your suspension stays smooth on light loads but firm and steady when hauling heavy.

Pickup truck showing rear sag under heavy cargo load before installing Timbren suspension system.

Smooth Out Rough Roads: Rubber Springs That Absorb Shock

Bumps, potholes, and washboard roads can beat up your suspension and cargo. These Aeon hollow rubber springs act like built-in shock absorbers, taking the brunt of the impact before it reaches you or your gear. The progressive design compresses easily at first for comfort, then stiffens as the load increases to keep your ride stable and controlled over rough terrain.

Truck on bumpy road demonstrating shock absorption improvement with Timbren suspension enhancement system.

Stay Steady in Crosswinds and Turns: Independent Spring Action

When a curve or a passing semi tries to push your ride around, these springs work independently on each side to cut down body roll and sway. Whether you’re taking on mountain roads or hauling an off-center load, each spring supports its side as needed to keep you level and in control.

Timbren suspension system preventing vehicle sag, roll, and sway during cornering and heavy load conditions.

Towing vehicle with trailer showing reduced sway using Timbren suspension system for improved stability.

Simple Bolt-On Setup: No Drilling or Air Lines to Run

Adding serious suspension help doesn’t have to be complicated. The kit includes custom-fit brackets and hardware that bolt directly to the frame above the axle—no drilling required. With no air hoses, compressors, or gauges to install, you can get it set up quickly with basic tools and hit the road with reliable, maintenance-free support.

Specs

Weight and Capacity

  • Load-leveling capacity: 12,000 lbs

Warranty

  • Lifetime warranty
  • Satisfaction guarantee

Note

Timbren springs will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's recommended weight limit.

Diagram showing Timbren suspension enhancement system installed above vehicle rear axle in loaded versus unloaded positions.

FRSDE Timbren SES with Aeon Hollow Rubber Springs - Rear Axle

Installation Details TFRSDE Installation instructions

This Product Fits The Following Vehicles






Customers Who Purchased This Vehicle Suspension Also Bought...



Customer Satisfaction Score:

Ratings & Reviews

4.7

7298 reviews
5 Stars
(5876)
4 Stars
(883)
3 Stars
(207)
2 Stars
(135)
1 Star
(197)
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by:
2023 Entegra Coach Accolade XT Motorhome
Accolade XT 35L - Timbren SES (TFRSDE - 12k support) loaded in the sweet spot.

These Timbrens should be used on F600 and F550 models. Do NOT use the spacers that come in the box. Just install the Timbrens without the spacers and you are good to go. When FULLY loaded (full gas/water and gear), the Timbrens should compress about 1/2”, which seems to be the sweet spot. The end results are as follows:
1. Better bump absorption and much better rebound. The inside chatter is more of a low sounding rumble and the suspension rebound is really quick.
2. Much better sway control and overall stability.
3. The drive feels more balanced front to rear. The rear drop was reduced by 1”. I think that allows the leaf springs and shocks to work in a more neutral position.

These are worth every penny and are a cheap “set it and forget it”way to improve your ride quality!
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2018 Ford F-550 Cab and Chassis
Installed on 2025 Ford F550. Installation was easy took about 2 hours to do front and rear bump stops. Used the supplied spacer ended up raising rear about a 1/2 inch which was the same as front. Purchased these due to truck sitting 1 1/2 inches lower on passenger side when Host Mammoth was loaded ( scaled at 18,600 lbs. with all tanks full). Didn’t have any excessive sway or bounce just not sitting as level as I would like. Did notice truck hitting bump stops a few times on both ends hoping theses smooth out the occasional bottoming out. Will update after I’ve loaded camper and made a few trips.
by:
Ford F-550 Cab and Chassis
These are amazing! Simple to install, easy to read instructions, very straightforward. Hardest part was taking off the factory bump stops, but I was lying on my back using hand tools.

I put these on my F550 wrecker and they alleviated the squat I was experiencing when towing trucks.

In the photo you can compare the factory bump stop with the Timbren.

In my truck I did not use the extra spacer that is included in the kit. If I had jacked my truck up higher I could have used it. As it is right now the Timbren's are always in contact with my axle. In my opinion my unloaded ride is better as well.

I HIGHLY recommend these for tow trucks.
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by:
No what I was expecting I have to remove I installed factory back
by:
Increased the ride height 1/2”-3/4” with the spacer. Really stiffened up the front by eliminating the sway.
by:
Ford F-450 Super Duty
These work great on my F450 with towing my 21k lb 5th wheel. Also help the ride when unloaded. A cheaper alternative to airbags, and it took me about a hour and a half to install both sides. Very happy with this product
Robert profile picture

Robert

10/2/2022

I like the Timbrens more. I am in the middle of a cross country adventure 4500 miles so far and the Timbrens are preforming great. And I am not a interstate rider, we take the rig back country, up and down 8 grades, twisty roads and bumby roads. Could not be happier.

by:
2019 Ford F-550 Cab and Chassis
We purchase the Timbren Suspenstion Ehahancement System for our 2021 Ford 550 plumbing truck. The F 550 plumbing truck has a full height 6'x 12' custom made enclosed steel service body. At the time of the purchase our salesman explain that Ford makes 2 versions of a F550 cab and chassis. one F550 light duty 17,500- heavy duty 19,500. We purchased the F550 light duty thinking we did not need that much carry capacity and lowering the overall purchase price.
Once the truck body was custom made and we drove it around for a few months we notice that the light duty suspension was a little soft due to the max weight we sometimes are hauling.
This is when we look into purchasing the Timbren Suspension Enhancement System. Once we installed this system we right away notice a big difference in the stability and handling of the F550 truck and are very impressed due to the cost and simplicity to install the product. Now after 1 year with the Timren Suspension we are very extremely happy that it is performing as well as the day they were installed. We have had no issues and would purchase this product again without any hesitation.

Thank you for a very well made suspension product that meet are need.

D-Extreme plumbing
Duane J.
by:
perfect parts and fit! quick shipping as well!!
by:
Fast shipping
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2015 Ford F-450 Super Duty
Can't wait to try them out thx
Kenneth profile picture

Kenneth

4/20/2024

Timbren suspension enhancement system works great love it. Thx

by:
Ford F-450 Super Duty
Springs hold up good really helped out with the problem. My F450 squats less than before.
by:
2019 Ford F-550 Cab and Chassis
A great product and great service again.
by:
Both people that I spoke with were extremely willing to help. Item ordered actually arrived quickly.
by:
2015 Ford F-550 Cab and Chassis
Showed on time and easy installation. This is why I continue to be a loyal customer.
by:
2020 Ford F-550 Cab and Chassis
Easy install, can’t wait to road test with a load
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2026 Ford F-550 Cab and Chassis
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2020 Ford F-450 Cab and Chassis
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I'm suitably impressed with the difference i feel.
I have about 250 lbs. of static load with my topper and Decked cargo system. This put my install gap with no spacers just under the reccomended 1 inch minimum.Then add a couple hundred more pounds hauling music gear 100 shows a year, and the stop is resting on the axle.
I feel the absorption of the Timbren material is better than the flimsy stock bump stops. More cushion.
Where i really feel the difference is in the stabilty of excessive side sway when turning while loaded.
I have a gig coming up that will involve some unpaved mountain roads to get there so I think i will have a real goid idea of how these Timbren's will perform.
Instalation took me about an hour at 11 p.m.
The product it of the highest quality in design and build.
And Etrailer is a company that I would not hesitate to buy from in the future.
Thanks Dee Dee.
You rawk!!
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Christopher H. profile picture
Etrailer Expert

Christopher H.

8/14/2026

Love hearing this! Really appreciate the detailed feedback and photos. That extra stability when you're loaded up can make a huge difference. And installing them at 11 at night—that's commitment. Hope they treat you just as well on those mountain roads. Safe travels and we'll definitely make sure Dee Dee gets the shoutout.

Adam R. profile picture

Adam R.

8/14/2026

@ChristopherH Dee Dee was great. Tell her I owe her a coffee!????
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See what our Experts say about this Timbren Vehicle Suspension

Do you have a question about this Vehicle Suspension?
  • Looking for Timbrens for 2023 Entegra Accolade XT 35L
    Hey David, since you want a better ride quality the better Timbren option is the part # TFRSDE which is a fit for your 2023 Entegra Accolade XT 35L as it's a better blend of support and ride quality than the Severe Service options. RV looks great though! They sure do make them a lot cooler looking than back in the day.
    view full answer...
  • Will Timbrens for 2023 Entegra Accolade XT 35L be Engaged at all Times
    Hey David, the Timbren kits like the # TFRSDE that you ordered are designed to have a small gap without a load on the tow vehicle like what you had on your F-350 when it was unloaded and then once loaded they will be engaged or at least touch the axle. So since your Super C is loaded they would be at the very least touching. The exact amount of compression though is hard to say. How does your Entegra handle currently? By the way your camper Jeep and SXS look sick!!
    view full answer...
  • Suspension Enhancement for Thor Four Winds SD35 on 2016 F-550 Chassis
    Hey Gary! The answer to your first question is both. I would use the higher rated Timbren SES # TFRSDE in the rear and then the SumoSprings # SSF-111-60 in the front. With all of the weight in your motorhome the Timbren will do a better job supporting the rear, absorbing road shock, and cutting down on sway. The SumoSprings are still rated pretty high at 4,000 lbs, and they will give you a better ride quality up front compared to the Timbren. Where are you headed once you get these...
    view full answer...
  • Best Suspension Enhancement for 2026 Ford F-550 Dump Truck
    Hey Roy, that is quite the truck! Since it is a dump truck you will want the higher capacity from the Timbren Suspension Enhancement System # TFRSDE. This gives you up to 12,000 lbs of additional support to handle those heavy loads and reduce that rear sag you have now so you stay level. Air bags are nice for a standard pickup, but the Timbren SES is the better option here. They will engage right away, and you also don't have to worry about maintenance or adjusting the air pressure. What...
    view full answer...
  • Front Suspension Enhancement for Thor Magnitude RS36RV on 2022 Ford F-600 Chassis
    Hey Don, welcome back! With all of the weight in the front of the F-600 I would choose the higher capacity Timbren SES # TFF550SDE. SumoSprings are great when you're throwing them on the back of a vehicle and worried about unloaded ride quality. The Timbren SES excels with heavier applications like yours. These will help absorb that road shock and cut down the vibration. As you mentioned, you will also get sway reduction since they act independently and will push back as the vehicle moves...
    view full answer...
  • Recommended Suspension Upgrades for a 2022 Thor Omni Motorhome
    The Timbren item # TFRSDE you were looking at are confirmed to fit the 2022 Thor Omni motorhome that is built on a 2021 Ford F600 4WD chassis. These have a 12,000 lbs capacity that will provide more load support and stability when you are driving your motorhome. They act as a shock absorber by taking the brunt of bumps and rough roads. There will be no issues using Timbrens in the rear of your motor home and SumoSprings for the front end. For your Thor Omni's front end you will want...
    view full answer...
  • 2022 Thor Omni RS36 Motorhome Jounce-Style Suspension Enhancement Recommendation
    We do have a specific product like the SumoSprings that fits your 2022 Thor Omni RS36 on the Ford F-600 chassis; the Timbren Suspension Enhancement System for Front # TFF550SDE and Rear # TFRSDE. This installs similarly to the SumoSprings and is simply a different brand - it doesn't look like SuperSprings has a fit for this chassis as of yet (April 2022). This kit replaces your factory bump stops so you'll get better support for your motorhome.
    view full answer...
  • Installation of Timbren Springs On A 2016 F-450 With DANA S130 Square Tube Axle
    The Timbren Rear Suspension Enhancement System # TFRSDE is a confirmed fit for your 2016 Ford F-450. The only thing the instructions state is to make sure that the Aeon Spring does not come in contact with the brake line. The springs are designed for and confirmed to fit your vehicle with the brake lines routed in this area with your Dana axle. None of the installations have required moving brake lines but the brake lines do come close. I reached out to my contact at Timbren and they...
    view full answer...
  • Suspension Enhancement System For A 2016 Ford F-450 Cab And Chassis
    The Timbren Suspension Enhancement System # TFRSDE is confirmed to fit your 2016 Ford F-450 Cab and Chassis. Using the Timbren system will improve the suspension, handling, and safety of your vehicle. The springs work independently with side-to-side adjustment. The system acts as a shock absorber, taking the brunt of bumps and rough roads and will extend the life of your vehicle's suspension. They will directly install to your trucks frame with no drilling required. The system has a...
    view full answer...
  • Recommended Suspension Enhancement System for 2017 Ford F-450 with 5th Wheel Hitch
    For your 2017 Ford F-450, the Air Lift options as you pointed out are not compatible with a 5th wheel or gooseneck hitch. The manufacturer states that none of their current options for your vehicle will work with the 5th wheel hitch installed although they can work with other vehicle models. My recommendation is to instead go with the Timbren Suspension Enhancement System - Rear Axle # TFRSDE. These aeon rubber springs absorb shock and increase in support as the load increases to give...
    view full answer...
  • Suspension Enhancement for 2020 Entegra Odyssey 26D
    We have a Timbren solution for the front and rear suspension of your 2020 Entegra Odyssey 26D but we do not have a SumoSpring kit that fits at this time. The Timbrens are a very similar design and would work well to improve suspension support and stability. So for that you'd want the part # TFRSDE for the rear and # TFF550SDH for the front.
    view full answer...

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