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  1. Vehicle Suspension
  2. Timbren
  3. Jounce-Style Springs
  4. Rear Axle Suspension Enhancement
  5. Extra Heavy Duty
Timbren Rear Suspension Enhancement System

Timbren Rear Suspension Enhancement System

Item # TFPR001
Retail:$438.91
Our Price: $373.07
You Save: $65.84
Vehicle Suspension

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6,000-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 Rear Suspension Enhancement System part number TFPR001 can be ordered online at etrailer.com or call 1-833-496-1390 for expert service.
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Timbren Vehicle Suspension - TFPR001

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

6,000-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.


Features:

  • Improves suspension, handling, and safety
  • Provides additional support as needed, so you always get a smooth, comfortable ride
    • Allows the leaf spring ample movement and cushions light loads
    • Becomes more rigid as more weight is added
      • Increases stability - gives you great performance when you are hauling heavy loads
      • Reduces vehicle sag
  • Works independently - side to side
    • Helps to compensate for off-center loads
    • Reduces body roll when you have to swerve or execute a sharp turn
  • Acts as shock absorber, taking the brunt of bumps and rough roads
    • Extends the life of your suspension
  • Includes 2 Aeon hollow rubber springs, custom-fit brackets and hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required


Specs:

  • Capacity: 6,000 lbs
    • Do not exceed your vehicle's weight-carrying capacity
  • Limited lifetime warranty
  • Satisfaction guaranteed


An example of sag on a truck's rear axle under a heavy load. The Timbren Suspension Enhancement System levels the vehicle.

Whether you're hauling heavy loads in the cargo area or by pulling a trailer, you will often see the rear sag while the front end rises. In these cases, the rear axle is handling not only the weight of the cargo, but more of the truck's weight, as well. Because less weight is on the front axle, the front tires are making less contact with the road. Overall vehicle 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 has a custom-fit bracket that will be 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, 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 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 the truck 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 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 the truck. 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.


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.



FPR001 Timbren Rear Suspension Enhancement System

Installation Details TFPR001 Installation instructions

This Product Fits The Following Vehicles




Video of Timbren Rear Suspension Enhancement System

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




Video Transcript for Timbren Vehicle Suspension - Rear Axle Suspension Enhancement - TFPR001 Review

Today we're going to take a look at the Timbren Rear Suspension Enhancement System. Now this is a custom fit part. It is designed to fit the 1995 to 2011 Fiat Ducato and a 2014 and newer Dodge ProMaster 2500 and RAM ProMaster 2500 vehicles. Now on a custom fit part I always like to recommend for you to to go our website, use our fit guide, put in your year and model vehicle and it'll show you if this part will work for your application. Now this kit will improve the suspension, the handling and safety on your vehicle. Provides additional support as needed, so you always get a nice, smooth, comfortable ride, and it does allow the leaf spring ample movement, cushions any light loads, so it'll ride just as smoothly when you're not hauling a load. Now these do become more rigid as more weight is added so that'll increase stability, gives you great performance when you're hauling heavy loads, and it'll help reduce rear sag. Now these do work independently, side to side so they help compensate for any off-center loads, helps reduce body roll when you have swerve or execute a sharp turn.

They will also act as a shock absorber, taking the brunt of any bumps and rough roads, so it helps extend the life of your suspension. This part will include everything shown here on the table. Two aeon hollow rubber springs, the mounting brackets, and the mounting hardware for a nice, simple installation, and a nice set of detailed instructions that'll describe how to install everything. Now these are designed to replace your axle bump stops on your frame. There's no drilling required. Specs on this is 8,600 pounds, but you do want to make sure not to exceed your vehicle's weight carrying capacity.

These are designed to work with a suspension system that is in good working order. That should do it for the review on the Timbren Rear Suspension Enhancement System.

Customer Satisfaction Score:


Customer Reviews

Timbren Rear Suspension Enhancement System - TFPR001

Average Customer Rating:  4.7 out of 5 stars   (4683 Customer Reviews)

6,000-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.

by:

Fitment for Ram Promaster 3500 Thor Sequence 20k motorhome:
A suspension enhancement that should be installed on every Promaster 3500 camper conversion. Straight from Thor's factory, these campers wallow in wind and when semis blow by; scaring the daylights out of you.
Timbren's upgrade is easy to install and results in about an additional 1/2-3/4" clearance. Improvements in handling are immediately noticeable. Even driving around town. Rounding hard curves on the interstate used to be dreadful. Now I drive into them with confidence.
STILL, handling needs additional help. Helper springs will be my next purchase. Unfortunately, etrailer does not carry Hellwig EZ-990 HELPER SPRING KIT (part #9665) . It's design addresses some of the complaints voiced by buyers of etrailers option.
Additionally, I considered replacing the OEM NEXEN tires with ones with a higher load rating. Thinking they contributed to handling issues. BUT, after installation of Timbren's upgrade; it was clear that is not necessary. Timbren's product is ridiculously priced for what it is. Though the handling improvements alone are well worth it. Perhaps one day these will be stock on all Ram Promasters.


Comments
Thank you for your review! While dont carry the part you mentioned, we do carry the SuperSprings Custom Suspension Stabilizer and Sway Control Kit as an alternative. I attached a link to the part.
-- Etrailer Expert Brooke M - 05/11/2021
The Timbren Rear Suspension Upgrade has worked quite well in the year since it was purchased. I also added Hellwiggs helper spring kit and changed tires to Michelin Agilis Cross Climate. One can drive the Ram Promaster 3500 camper fully loaded with complete confidence, now.
Katherine E - 06/23/2022


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Have been recommending for years. Good quality product.




by:
2016 Ram ProMaster 2500

I have had the Timbrens on my 2016 Promaster Van (2017 Winnebago Travato) for a year now. They have made an incredible difference in the ride quality. No more swaying in the wind! It also raised the rear end of the van one inch - every little bit helps on a van converted into a motorhome. I highly recommend these to any Promaster owner. They are definitely money well spent!


Comments
Its still an awesome product. I am in a Facebook group for other RAM Promaster motorhome owners and I recommend the Timbrens all the time.
Pat S - 06/19/2018


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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


About a 1/2 inch difference in gap at the bump stop perch but still within parameters. Truck sits perfect with trailer attached. Haven’t towed yet. After towing if they perform like they should will upgrade to a 5 star. Easy to install, definitely needed 2x4 and jack. 2011 Silverado ext cab with 30 ft Genisis 5th wheel.




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I have used Timberns on 2 other vehicles, a Toyota 4Runner and an S10 Blazer with out complaint.

I transport RVs as a contractor for an RV transport company. My truck is 2021 Ram 3500 crew cab, 6.7 diesel.

Because the weight of the units is different with each unit I haul I wanted an easy, no maintenance solution to maintain as level a ride as possible. I haul both bumper pull and 5th wheel units. In addition to the weight of the unit I'm hauling I can carry 110 gallons of fuel with both the factory fuel tank and my auxiliary tank. Additionally, there is the weight of my Curt 25K 5th wheel hitch, Curt 14K equalizer hitch and bars, and approximately 300 pounds in tools.

I don't have to worry about airbags not inflating. The suspension settles about an inch before making contact with the Timberns. Squat while loaded is negligible. The ride empty is the same as it was before installation. The ride loaded is smooth and controlled even when hitting large bumps at highway speeds.

Installation was simple and straightforward. It took me about a half hour.




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


They definitely support and did lift my 2014 toyota tundra up about 1.5 inches.
This application with my weight has trunk riding on the cushions all the time.
That has teavel and bounce issues that do make some driving situations interesting.
I may go ahead and replace with airbags but for now support things well!




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Makes my truck feel better while towing a 5th wheel camper, especially over expansion joints of the expressway.




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I think I will be very happy with the ride when I tow our fifth wheel, it definitely needed the extra support especially on rough roads.I chose not to use the spacers because I like the softer ride when the truck is unloaded.




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


2022 Ram 3500, 30 minute install time, great product. Hooked up camper without sway bars and only squat 3/4 inch, where before 4 to 5 inches. Recieved product in 3 days with etrailer staff sending me numerous emails. Great job to etrailer staff. Thanks




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


The timbrens actually did what they were suppose to do. However, once I starter driving out west I notice the timbrens were riding on the axle which cause the speedometer to jump around depending on the road. I would recommend them if you are hauling or towing a camper or RV. I was going to contact etrailer about maybe removing a spacer for one set however the other set came as one unit. The bottom line is the Timbrens does stabilize your load for safe travels. I will be contacting etrailer soon to assist in correcting the problem...Road trip from Idaho,Colorado,Wyoming,and Utah were beautiful... Thank you etrailer




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I haven’t hooked up to the fifth wheel yet or else it might be a 5 star. Based on the 15 minute installation time and the price compared to air bags this appears to be a logical way to go. I will update this as I hook up and put a load on it.




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Haven’t had it on long, but so far so good. 1999 F350 dually. Bolted up nicely. Total job took 10 minutes. Have hauled two gooseneck loads of hay and truck drives SO much better. Nice and level. Money well spent so far.




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I have the timbren enhancement system on my 2020 canyon. I haul a trailer with Ranger that I pull about 250 miles to hunting camp. It tows great!




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


The Timbren rear suspension enhancement system helped with the truck swaying side to side when the slide in camper is on the truck.
The photos show right and left rear with Timbren’s installed (2 photos), with slide in camper on the truck (2 photos) and when the camper was removed (2photos).




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Installed these with only one issue, which was on the driver side rear axle. The axle had a ABS sensor cable bracket on the axle that need to be readjusted and trimmed down. The BumpStock was hitting this bracket on one edge. So actually, it's not and exact fit. But this issue is really a FORD placement issue of that cable. So just be aware that some extra work may be needed to install them. Passenger rear side install perfectly. Next is the drive to see how much better the coach drives, heard great reviews on that




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Great product, it works perfect on my truck. Sometimes I tow up to 30k lbs including my trailer and my truck stays level. No more high beam flashing in my eyes from drivers going in the opposite direction on the road.




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Worked great on our 2019 Honda Odyssey Elite to the East coast.Fully loaded with 4 people and a car top carrier,the Timbrens kept the van stable and level.
Sold the 2019 but took the Timbren system out and put them in our new 2022 Elite. Very easy to install, highly recommend.




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I used this on my Isuzu tow truck. The blocks in and of themselves are fine, they support the weight. Here's the problem: They are pre-loaded, meaning that they always touch between the frame and the rear axle. As you load the vehicle this puts more pressure on the frame in this 5" area where the blocks are. The springs have not yet taken as much weight as they normally would. Now, all this upward pinpoint pressure bends the frame. This is what happened to me on my rollback tow truck. After many hours and now double plating the frame all is well again, but a tremendous amount of work. Yes, the blocks are fine, but the result of installing this product resulted in a bent frame. The vehicle was not overloaded and was within the GVWR.


Comments
I have reached out to the manufacturer who will be reaching out to you.
-- Etrailer Expert Jenny N - 01/20/2022


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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


I will say they are perfect for towing but when your not towing cause they are so close to the bottom it feels stiffer when not towing! They should make long enough so that it touches besides that these are perfect




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Too early to give a ride review but I received the TFFF53B fronts and the TFRF53A rears for my 2019 Fleetwood Southwind 35K while at a campground this week. Easy enough to change out while there. It is about.a 2 hour job to change out all 4. The front right took me the longest and you have to reuse the existing bolt. A washer should be provided because the hole in the bracket is almost as large as the bolt head. I will be placing a large flat washer there. The rears took less time to change.. I used the first and third slots in the mounting brackets and they actually put the unit more over the center of the axle than the original bump stops. Same was true in the front. No clearance issue or interference with my trac bar.


Comments
Have had these on my RV for over a year nowhere and I am completely satisfied. The fact that these always maintain contact with the axles greatly reduce body roll on turns and uneven roads.
Patrick - 11/07/2022


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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Very simple to remove and install. I took all of 15 minutes without even removing the wheels




by: 08/20/2022

Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Easy r&r on our NV200
Attached photos
show the stock bumpers
alongside the newly installed Timbrens,
which exceeded my expectations. Use photos as
you wish. JW




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Review from a similar Timbren Aeon Spring System in Vehicle Suspension


Couldn’t be happier with way they operate. I haul a 12,000lb 5th wheel trailer and helps tremendously with the handling and keeps my vehicle from sagging in the rear. Great idea and very reasonably priced.


Comments
Excellent, use them on a regular basis and still holding up great. They’ve been a great addition and also had a couple relatives add them to their vehicles.
Mike M - 08/27/2022

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See what our Experts say about this Timbren Vehicle Suspension

  • Suspension Enhancement Recommendation for a 2017 Winnebago Trend on a ProMaster Chassis
    I recommend adding the Timbren Rear Suspension Enhancement System # TFPR001 to your 2017 Winnebago Trend. This will give your OEM suspension some extra help in regards to handling the load, both with sway and with squat. We actually have someone who left a review about this same kit and how they love using it with their 2017 Winnebago Travato which is also on a ProMaster chassis.
    view full answer...
    Image 1 for
  • Suspension Enhancement Recommendations for 2017 Winnebago Trend
    I recommend starting with one of the two types of suspension enhance that you mentioned for your motorhome. Sometimes two suspension enhancement systems can work against each other and almost feel like it makes these issues worse. For your 2017 Trend I recommend starting with the Timbren Rear Suspension Enhancement System # TFPR001 because they will help stop the body roll of your motor home as well as help prevent sagging at the back of your motorhome. One customer who has a 2017 Travato...
    view full answer...

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Info for this part was:

Employee Tyler C
Written by:
Tyler C
Employee Jeff D
Installed by:
Jeff D
Employee Robert C
Installed by:
Robert C
Employee Jacob T
Video Edited:
Jacob T
Employee Mary E
Updated by:
Mary E
Employee Wilson B
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Employee Anna W
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