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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
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2003 Ford Excursion
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Timbren

Timbren Suspension Enhancement System - Rear Axle

Part Number: T57CR
In Stock
$269.36
Retail:$316.90
You Save: $47.54
Vehicle Suspension
Not Confirmed to Fit

2003 Ford Excursion

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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
8,600-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. Becomes more rigid as more weight is added for great performance when you're hauling a heavy load. Great Prices for the best vehicle suspension from Timbren. Timbren Suspension Enhancement System - Rear Axle part number T57CR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Vehicle Suspension - T57CR

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • 8,600-lb Load Support: Keeps your truck level and steady when hauling or towing heavy loads.
  • Better Steering and Braking: Prevents rear sag so your front tires keep solid road contact.
  • Smoother, Safer Ride: Rubber springs absorb bumps and cut down on sway and body roll.
  • Handles Off-Center Loads: Each spring works independently to balance uneven cargo weight.
  • No-Drill Install: Bolts to frame with included brackets and hardware for quick, simple setup.

Features to know about

Stay Level and Confident Under Heavy Loads: 8,600-lb Rear Suspension Support

When you’re hauling a heavy trailer or a full bed of gear, rear-end sag can throw off your steering and braking. The Timbren Suspension Enhancement System adds up to 8,600 lbs of load-leveling capacity, keeping your ride level and stable under serious weight. The hollow rubber springs mount above the rear axle to help share the load with your factory suspension, improving handling, traction, and braking when your truck is working hard.

Pickup truck with heavy bed load showing rear axle sag before installing Timbren suspension enhancement system.

Diagram comparing vehicle rear suspension loaded vs unloaded with Timbren Suspension Enhancement System installed above rear axle.

Smooth Ride and Less Bottoming Out: Progressive Rubber Springs

Rough roads and uneven loads can make a truck bounce or bottom out. Timbren’s Aeon hollow rubber springs act as shock absorbers, soft at first then firming up as weight increases. The progressive design compresses along its folds to absorb bumps and stabilize the vehicle as the load rises. No more harsh jolts when you hit uneven pavement—just a smoother, more controlled ride that keeps your suspension from taking a beating.

Animation showing Timbren hollow rubber spring compressed to demonstrate progressive load support and increased stiffness.

Truck on bumpy road illustrating shock absorption benefits of Timbren suspension enhancement system.

Stay Steady in Crosswinds and Turns: Independent Spring Action

Sway and body roll can make towing or hauling stressful, especially in curves or gusty wind. Each of Timbren’s springs works independently to support one side of the vehicle when it’s needed most. That means less leaning through turns and less trailer sway when a semi passes or when you hit uneven ground. The result is steadier control and a more comfortable drive even with an off-center load.

Diagram showing Timbren suspension reducing vehicle sag, roll, sway, and squat during turns or off-center loads.

Illustration showing reduced trailer sway due to improved stability from Timbren suspension enhancement system.

Install It Once and Get to Work: Simple Bolt-On Fit

Setting up extra suspension support doesn’t have to be complicated. The Timbren system bolts directly onto the frame above the rear axle using custom-fit brackets—no drilling required. There are no air lines, compressors, or gauges to deal with, just reliable rubber springs that get straight to work every time you load up. With durable hardware and a lifetime warranty, it’s built for years of hauling without hassle.

Specs

Weight and Capacity

  • Load-leveling capacity: 8,600 lbs

Note

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

MBRSP25B Timbren SES with Aeon Hollow Rubber Springs - Rear Axle

Installation Details T57CR Installation instructions

This Product Fits The Following Vehicles




Video of Timbren Suspension Enhancement System - Rear Axle
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 Review of the Timbren Suspension Enhancement System-T57CR

Hi, everybody, Andy here with etrailer.com. Let's take a look together at this Timbren Rear Axle Suspension Enhancement System. Now this system is designed to fit your 2007 to 2009 Dodge Sprinter 2500, your 2007 to 2015 Freightliner Sprinter 2500, your 2010 to 2015 Mercedes-Benz Sprinter 2500, your 2016 to 2021 Freightliner Sprinter 2500, both two and four-wheel drives, then finally, your 2016 and newer Mercedes-Benz Sprinter 2500, both two and four-wheel drives. On custom fit parts such as these springs, I do recommend taking advantage of our vehicle fit guide. Enter the year, make, and model of your vehicle and our fit guide will confirm if these will work for you or if we have something comfortable that will work for you. Now, these hollow rubber springs have a capacity of 8,600 pounds, and they're going to sit above your rear axle to help stabilize and level your vehicle.

These springs are also going to give you additional support as needed so you're always gonna have a smooth, comfortable ride, allowing the leaf spring ample movement while cushioning light loads. They're going to ride just as smoothly when you're not hauling a load. They're gonna become more rigid as more weight is added for great performance. When you're hauling a heavy load, increasing stability and reducing vehicle sag. They are gonna work independently, adjusting side to side, helping compensate for off-center loads and reducing body roll when swerving and turning corners.

These springs also serve as shock absorbers, taking the brunt of bumps and rough roads, extending the life of your vehicle suspension. So this kit is going to include everything that you see here. You're gonna get two Aeon hollow rubber springs, you're gonna get the hardware that you need to successfully install these, along with instructions, and I do have the hardware installed here just so you can kind of see what it's going to look like when you have this together. Now, I mentioned at the beginning of our time together that the capacity is 8,600 pounds, it is important to note, however, that these Timbren springs will not actually increase your vehicle's weight-carrying capacity, so you wanna make sure that you're not exceeding your manufacturer's recommended weight limit. And these do have a lifetime warranty from Timbren.

Well, that's gonna wrap up our look today. I do hope that our time together was helpful for you. Again, my name is Andy. Thank you for joining me.

Customer Satisfaction Score:

Ratings & Reviews

4.7

7260 reviews
5 Stars
(5849)
4 Stars
(875)
3 Stars
(207)
2 Stars
(134)
1 Star
(195)
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8,600-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. Becomes more rigid as more weight is added for great performance when you're hauling a heavy load.

by:

Great upgrade when pulling our 6500lb travel trailer. Helps with sag and control on the road on our Ram 1500. Change the stock shocks and if you choose, upgrade your stock springs, and you'll get the most out of your half ton.



by:

Added these to my F250 Super Duty. I carry a golf cart on a Diamond back bed cover. Can be a little top heavy. Perfect addition to my suspension- greatly reduced the sway.



by:

1.5" gap... it came with 1 spacer for each side. if i buy the spacer kit, what size are they ? i have a 2026 f350.



by:

Helps prevent about 1/2" of sag with my 175lb-tongue weight trailer and easy to install.



by:

Easy to install using basic hand tools, and stopped the "sag" when I hook up my Casita travel trailer



by:

Easy install took about 20 minutes on my 2017 Ram 3500 SRW. Had about 1/2 inch clearance as recommended. Loaded up my 5th wheel (2350 hitch weight) and about 200 lbs of gear in the bed. Just got back from a 800 mile camping trip through mountains of TN. You can really feel the difference around those sharp corners and uneven surfaces. The truck felt firm and controlled not hard and jarring as some have mentioned. Going over those overpasses with the wonderfully smooth (Not) joists was greatly improved. The truck would squat and rebound again, with a firm controlled response. Driving without a load felt the same as before without them. I would highly recommend these! Ordering from etrailer continues to be my go to option!



by:

Great product. The ride and body roll at the rear axle are notceably improved (1989 Ford E350 Class C RV , 27 ft). I give it 4 stars because the installation was slightly complicated due to the rear brake lines needing to be slightly bent to provide clearance for the U bolts supplied in the kit. Great product and wish it came in a 5000 lb version.



by:

2,000 miles in on a trip from the east coast to the Canadian Rockies these work great while loaded and towing. Close to zero bounce while towing, I love them. Unloaded, however, the ride in my 2026 Tundra has gone south. There is a noticeable, abrupt stop of the units hitting the axle when going over any kind of bump. When I get home and back to regular driving, I may just take them off, its that bad.



by:

I've had these on our tow rig for a year now and I added buy them again today if I needed them.these have worked much better than airbags for our coil spring rear suspension to handle the tongue weight of our trailer. The SUV sits level when the trailer is on and it handles bumps and sway better than the airbags did providing much more comfort to us in the vehicle. Unloaded, we don't really notice they are there, unless, we have all the kids and some friends loaded up and you will fell them work when going over bumps.i do all my maintenance on the vehicle's and inspect these regularly and I cant see any wear so far even though we've gone on 6 trips with our trailer with about 5000 miles doing so.
I cant say these are the best for every truck or SUV, but for ours it is the best and I definitely would recommend to others.



by:

Well they are exactly what I thought it would be. Hard for me to say it's what I needed yet.
I installed them on a homemade trailer from a salvaged 2001 base model tacoma. Once I get finished building it out and have some weight in it I'll have a better idea. But from what I've seen so far on a couple test drives they should come into effect when needed.
For reference I building an Tacoma based trailer with an ARE Contractor topper with a Naturnest roof top tent on the very top. So to counter and sway these should be very helpful. At least I hope so. I'm not an engineer but I did stay at an Holliday Inn once.



by:

The Timbren SES is a simple solution for rear squat when towing. When hitched to my 30' Airstream Globetrotter (8800 GVWR) with a tongue weight around 1200 lbs, my Silverado 2500HD had a bit more squat than is ideal. I shopped airbags but didn't want to spend ~$2K for the set up and didn't want the hassle of installation and forever chasing air leaks. The Timbren SES literally installs on the Silverado in about 15 minutes. So simple. No bags, no compressor, no wiring, no air lines, no leaks. And WAY less expensive to boot. Just returned form a 600+ mile trip and it towed flawlessly.



by:

A very simple and straightforward installation once you get the oem bumper stops off (had a shop do that)
Timbren worked with me as I had a non OEM frame height (vehicle was lower than stock) to recommend the proper kit. Highly recommend contacting timbren if you are unsure of the proper kit to use. Ride is more stable. It does feel stiffer and less bouncy but am looking forward to seeing how it performs with my truck camper. Truck is a 1998 dodge ram 2500. Brake line over left side of axle needed to be secured to prevent damage.



by:

The Timbren overload spring/bumper was east to install and did what it was supposed to do when I hitched up a camp trailer. These did not negatively affect the ride by any means and I don't have to worry about the troubles with air bags.



by:

Stiffens and corrects kneel in rear end of 2023 Chevy Silverado 1500. You will notice a stiffening of the rear end suspension while unloaded, but it’s a fair trade off to prevent sagging and porpoising while towing. I found it easier to pull the rear wheels and work from the side than underneath the vehicle while installing.



by:

The timbres bump stop is exactly the right height to meet the axel when the trailer is connected with all its weight onto the hitch. I have an Andersen weight distribution hitch and it levels out perfectly. The day picture is with the coach (Winn 2100bh) with factory equipment. The night picture is after the timbres are in place. Looks good.



by:

It has been almost a year since I installed Timbren Suspension Enhancement Systems (DVF350 and DVR350R) on the front and rear of my 2003 Dodge RAM Van 3500. These bumpers replaced the OEM bump stops that were on my van. I like the Timbren bumpers much better than the OEM bump stops because they provide a progressively cushioned response for suspension compression when traveling over significant humps like speed bumps in a parking lot, or curb ramps into driveways. I did not like the abrupt stop the OEM bump stops provided when traveling over the same objects. I installed the Timbren rear bumpers first, and after a few months of use, I decided to add them to the front. In both cases, the front and rear Timbren bumpers were easy to install once the OEM bump stops were removed. Installation required reuse of the factory hardware. On my van, the Timbren bumpers are not always engaged. Under normal load and travel conditions the bumpers are relaxed and about 1/2” away from the suspension landing points. However, their presence is much appreciated and very noticeable when the van is carrying heavy loads or handling significant humps.



by:

Absolutely Pleased with the TIMBRENS. They were easy to install, and took less than an hour to install both. I noticed a slight stiffness in the ride as the rear bounced over a bad roadway. Towing is great, with a nice level and smooth ride. I am glad that I did not order the heavier duty Timbrens, than what was recomended for my truck. I believe the ride would have been too stiff. If you look at the photos showing the timbrens, the truck is still lifted in the rear, so what you see is a big gap between the rubber, and the steal plate. When the truck is lowered, there's 1" of space as it should be. BTW, I have been purchasing from etrailer for years now, and I have to say that I have never had any issues with any orders. They are my go to folks for all of my vehicle suppension stuff and trailer stuff. You can't go wrong with buying from them.



by:

My F53 was like driving a waterbed down the road. With the Timbrens, it’s a different vehicle. Should have installed them years ago. Etrailer is my go to for anything trailer. FAST shipping and prompt responses to questions or concerns.



by:

2022 F250 Super Duty. Super easy to install. I have about 3/4" gap between the spring and the plate. Time will tell how they impact the ride quality and how much sag they mitigate with my 5th wheel hooked up.



by:

Timbren Spring Helpers were exactly what I needed on my Tundra plus a spacer kit since I have a 3” TRD lift. They were packaged neatly, with proper hardware, and excellent instructions! They absolutely do exactly what they are supposed to do! Truck rides much better and helps level out the load!



by:

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!!



by:



by:

So happy. Instantly made a difference!



by:

Difficult to get in but they work great! First side took 3 hours to devise a way to install. Rubber is quite stiff and nearly impossible to manipulate into the factory receiver. Had to take a c clamp and squeeze rubber into a U shape with one end in receiver and massage in with screwdriver and grease. Second side took ten minutes once I had method down. Very gratifying upgrade so far. 2016 Sprinter 4x4. I would consider the 11,ooo pound version if I did it again.



by:

Thank you works well, easy install


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See what our Experts say about this Timbren Vehicle Suspension


Info for this part was:

Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Matthew S
Written by:
Matthew S
Employee Daron K
Edited by:
Daron K
Employee Andy C
Installed by:
Andy C

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