1. Vehicle Suspension
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FITS 2010 Fleetwood Bounder Motorhome
Timbren Rear Suspension Enhancement System

Timbren Rear Suspension Enhancement System

Item # TWRW22
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Retail:$488.94
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Vehicle Suspension
Confirmed to Fit
2010 Fleetwood Bounder Motorhome

33U - Workhorse

35E - Workhorse

35H - Workhorse

35J - Workhorse

38P - Workhorse

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Call etrailer.com at 800-298-8924 for expert service. We are your Fleetwood vehicle suspension experts, and offer a lowest price guarantee. etrailer.com carries a complete line of Timbren products for your Fleetwood Bounder Motorhome 2010. Timbren Rear Suspension Enhancement System part TWRW22 from Timbren can be ordered online at etrailer.com. Complete vehicle suspension installation instructions and technical support.
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  • Reviews (2107)
  • Q & A (4)
  • Videos (2)
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2010 Fleetwood Bounder Motorhome - Timbren Rear Suspension Enhancement System

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

8,600-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your Fleetwood Bounder Motorhome. 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
      • Does not affect the empty ride of the vehicle
    • 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


Specs:

  • Includes 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required
  • Capacity: 8,600 lbs
    • Do not exceed the vehicle's weight-carrying capacity
  • Designed to work with a suspension system that is in good working order
  • Limited lifetime warranty - satisfaction guarantee


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 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.



WRW22 - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Installation Details TWRW22 Installation instructions

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 Front and Rear Suspension Enhancement Systems Review

Speaker 1: Today we're going to be taking a look at the Timbren line of suspension enhancement systems. Any time that we add weight to our vehicle, it's going to put a lot of strain and stress on the suspension, especially if we're towing a heavy camper, trailer, or we have a heavy load in the back.Tends to have the back end squat down, which again, it's going to put that strain and stress on the rear suspension because not only are we asking it to hold up the weight of the vehicle, but everything else that we add on to it. Which that can arise a lot of different issues. The front end is going to be getting pulled off, which will misalign our headlights, and our tires won't have as much contact, so our steering and braking is going to be diminished.But tat;s where timbrens are going to come into play. They're going to provide us that extra support so that when we do have those heavy loads, the back end doesn't sag down quite as much, and it's not putting so much stress on the back end. By doing that, the front end's not going to rise up, which means our headlights will be in line and our tires will have the correct amount of contact and pressure, so our braking and steering isn't affected.

And they're going to do that all while making our ride more comfortable with that extra load.Our timbrens are going to provide us the support we need by replacing our factory jump stops and mounting in between the frame and the axle. Now, yours may look different, so you want to double check inaudible 00:01:20 fit guide for your specific application.Now, each one of our timbrens is going to feature a steel bracket. They're all going to have black, powder coat finish on them to resist that rust and corrosion or any other kind of chemicals that may be on the road. They're going to have a hollow, rubber ayon 00:01:36 spring that's going to take a lot of that pressure and strain off of the rear suspension.Whenever we do load our vehicle down, the space between our frame and our axle is going to get smaller. That's where our spring is going to make contact with the axle, and it's going to start compressing.

Now, they are progressively rated, so if we have a small load or a light load, it's going to have a little soft engagement. But the further it gets compressed, the harder and stiffer it becomes, giving us the support we need with those heavy loads.And since they are rubber, they're going to have a lot of give to them, which means they're going to give us the support we need. But at the same time, they're going to give us some more cushion and absorb some of the road shock as we drive. And since the rear ones here aren't in constant contact with our aXle, it is going to provide us the same ride quality when it's unloaded.Our timbrens are going to work independently from each other from side to side. That way, if we have an off center load, it will help compensate for that, but at the same time, if we take an evasive maneuver or a really sharp turn, this is going to help reduce that body roll and some of that sway feeling that we get going on when we have a lot of added weight.Our timbrens for the rear are going to be a good enhancement for any time you're going to be adding weight to the back of your vehicle, whether it be a heavy trailer, a large load in the back or any other situation where you're adding a lot of weight to the back of your vehicle.Now, timbrens on the front are going to be a little bit different.

They're going to provide us that load-leveling support and make sure the front end doesn't get pushed down too far. However, these typically are going to be in contact all the time, which means it's going to give us that support and help reduce on that body roll all the time, all while absorbing that road shock, giving us a smoother ride.Now, some situations where you'd want that extra support on the front of the vehicle to keep it from getting pushed down too much would be if you have a snow plow or winch, if you flat-tow your vehicle, or if you have any other heavy accessory on the front. This is going to make sure that front end stays where it should be, and again, making sure our tires, braking and steering acts how they should.When comparing the timbrens to other suspension enhancement options like airbags, these are going to be a lot easier to install because we're not going to have to worry about running lines, maintaining air pressure, putting in switches or compressors or any of that. Once these are installed, these are going to be completely maintenance free. However, airbags are going to provide us with a lot more adjustability, whereas our timbrens are not going to have that.That'll finish up your look at the timbrens suspension enhancement systems..


Customer Reviews

Timbren Rear Suspension Enhancement System - TWRW22

Average Customer Rating:  4.7 out of 5 stars   (2107 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.

- TFRF53A
by:

Review from a similar Aeon Spring System in Vehicle Suspension


Delivery by etrailer was fast. Their advice as to proper application of the Timbrens saved me lots of money! 749745



- TDR3500CA
by:

Review from a similar Aeon Spring System in Vehicle Suspension


the timbren tdr3500ca were a very easy install on my 2018 ram drw 4x4. The included spacers were needed and left about 1/2 inch clearance. empty ride is same. Will load arctic fox 990 soon and expect great results. I elected not to reinstall my air bags, when trading trucks. I also have upper stable loads and will not miss the air bags. ordering was easy and free shipping was fast. 612456


Comments
With my af 990 camper installed they are fantastic. More stable than my previous airbags and the ride is better than empty. Trouble free and no hassle. Install and forget. Very happy.
curt g - 03/17/2020

71371

- TGMFK25S
by:

Review from a similar Aeon Spring System in Vehicle Suspension


I ordered timbrens for the front and rear of my chevy 2500. I have a 2000 lb truck camper and I wanted something to help carry the load a little better. I had no idea that my front bump stops had worn away to almost nothing until I installed these. They have worn well and performed well so far. 628835


Comments
Still working great. No problems. Really happy I didnt waste the money on airbags.
Josh - 04/16/2020

73355

- TDR3500CA
by:

Review from a similar Aeon Spring System in Vehicle Suspension


Ordered these from Etrailer.com and got them in three days. Super easy to install on Ram 3500. Didn't have to jack up truck. Assembled is 6.5" on Ram 3500, I had 7" to play with so plenty of room. Haven't added a load yet as 5th wheel is on order. Looking forward to it. 609612


Comments
A year after purchase and after 8000 miles on my fifth wheel, Id buy these Timbrens all over again. Work great! No squatting, no air maintenance.
Walt - 03/03/2020

70679

- TGMRYS4
by:

Review from a similar Aeon Spring System in Vehicle Suspension


So far they look great. I will put on this weekend and see how they work with my travel trailer. 476068



- TFRTT350F
by:

Review from a similar Aeon Spring System in Vehicle Suspension


These arrived as scheduled. The look good, well made. On my way out to install them now. The will get tested later today on the way to the lake. 703241



- TDR1500DS
by:

Review from a similar Aeon Spring System in Vehicle Suspension


Very happy with my timbrens and quick shipping. Added these to a 2013 2500HD 4X4. Quick and simple to install. improved ride quality and takes the squat out when pulling a gooseneck trailer. Very happy and would recommend to anyone wanting to improve quality of ride height. 493335



- TDRTT1500
by:

Review from a similar Aeon Spring System in Vehicle Suspension


Took longer to take it out of the box than to install them on my ram 1500... dish soap and twist and upward pressure with both hands(if your tough enough) and “presto” the job is done. About 1 1/2” clearance (bottom of new bump stop to top of axel) when empty and a little over 1 3/4” drop with a 16’ enclosed trailer weighing 4400#s totally loaded. Rides great and stabilized the truck. 771782



- TDR1500DS
by:

Review from a similar Aeon Spring System in Vehicle Suspension


Great product. 597716



- TFR250SDF
by:

Review from a similar Aeon Spring System in Vehicle Suspension


Fast shipping 400467



- TFR250SDF
by:

Review from a similar Aeon Spring System in Vehicle Suspension


I have a Timbren rear suspension system on my 1982 Chevy truck that I still own, and after 20 years they still work fine. This latest set installed easily on my 2001 F-250 and they work just as well with and without a load. 440182



- TFR1502D
by:

Review from a similar Aeon Spring System in Vehicle Suspension


I purchased these to help with the squat on my F-150 when towing my 32--foot travel trailer. I need to tweak the setup on my WDH, but otherwise am very pleased. Without the trailer, you don't even know they're there. 558730



- TGMRCK25D
by:

Review from a similar Aeon Spring System in Vehicle Suspension


I bought these for a 2012 GMC 2500 Duramax. The installation for these was much easier than I anticipated (I can't say the same for the front suspension system.) Just lift up your truck, pry out the stock bumper stops, line up the Timbren springs with a 2x4 underneath, and lower the truck. The weight of the bed/frame is enough to get the Timbren spring to seat correctly. This took me less than 10 minutes. Ride quality seems to have improved as big bumps on the road are less rough. These keep the truck from sagging underneath the weight from a trailer, too, though I didn't have much problem with that to begin. Overall, I like this addition. Easy. 48427



- TDR1500DS
by:

Review from a similar Aeon Spring System in Vehicle Suspension


The product worked great and was very easy to install. The delivery took a little bit longer than I had hoped for, however everything worked out fine. I would highly recommend this product for towing, or if you're putting your vehicle under any kind of a load. E Trailer was fantastic! 561603



- TFR250SDJ
by:

Review from a similar Aeon Spring System in Vehicle Suspension


You guys are great to work with. Thanks again 573793



- TGMRCK25D
by:

Review from a similar Aeon Spring System in Vehicle Suspension


I installed them on my truck yesterday. Very simple to put in. Won't be able to see how well they work until I hook up our 5th wheel next for a trip. 576508



- TFRTT1504E
by:

Review from a similar Aeon Spring System in Vehicle Suspension


Timbren Suspension Enhancement System - Rear Axle Item # TFRTT1504E Just had a chance to install the Timbren. Went on a short drive with no load and have not hooked up the trailer yet. About an hour to install, the instructions where not very good but going on line etrailer site and followed the video. Very good product! 734943



- TFR250SDG
by:

Review from a similar Aeon Spring System in Vehicle Suspension


Sold vehicle shortly after install,never got a chance to use it. But the install was very easy and product was high quality. 636794



- TFRTT350E
by:

Review from a similar Aeon Spring System in Vehicle Suspension


5 stars. Easy to install and made a big difference when pulling a 9k pound travel trailer. I would recommend it to anyone pulling a trailer. Kept it from sagging and level. 699184



- TFR250SDJ
by:

Review from a similar Aeon Spring System in Vehicle Suspension


These things work great. You never have to worry about air leaks or the air pressure like you do when you have bags. 601205


Comments
They are still working great.
Harold - 01/30/2020

65052

- TGMRYS4
by:

Review from a similar Aeon Spring System in Vehicle Suspension


The product worked out great... Did exactly what I needed it to do...Easy to put on.. 370797



- TDF25004B
by:

Review from a similar Aeon Spring System in Vehicle Suspension


I have a very heavy "Cattle Guard" on the front of my RAM 3500 and this combined with the heavy 4WD and diesel engine the extra support from the Timbren Front Suspension Enhancement System definitely keeps the front suspension from bottoming out. 644652


Comments
Working GREAT!!!!
Ron H - 05/24/2020

77424

- TGMRTT15S
by:

Review from a similar Aeon Spring System in Vehicle Suspension


Good product, good quality... 445617



- TDR1500DS
by:

Review from a similar Aeon Spring System in Vehicle Suspension


Works perfectly, easy install. Will be making another purchase for other trucks now that we were able to see how well they worked. 702944



- TGMRTT15S
by:

Review from a similar Aeon Spring System in Vehicle Suspension


When towing travel trailer, too harsh of a ride, like a log wagen. Bought air lift AL59565 and they ride great. 64976


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Ask the Experts about this Timbren Vehicle Suspension

  • Recommended Suspension Enhancement for 2007 Winnebago on Workhorse Chassis
    Based on my research, it looks like your 2007 Winnebago Voyage 33V was built on the Workhorse W20 chassis with 4-wheel drive. I do recommend verifying this information with your paperwork for the RV, as it looks like there were a few different models of that Winnebago. For suspension enhancement, I recommend the Timbren Front Suspension Enhancement System # TWFRW22 and Rear Suspension Enhancement System # TWRW22. These are jounce-style springs like the ones you were looking at that...
    view full answer...
  • Size of Bolt that Comes with Timbren Kit part # TWRW22
    The bolt size that comes with the Timbren kit part # TWRW22 is M10x60mm x 1.5. Basically just enough of the bolt comes through the assembly and frame to secure it with the nut on the truck frame.
    view full answer...
  • Is Weight Capacity for Timbren Suspension Kit # TWRW22 for Both Springs or Per Spring
    The capacity of the Timbren Rear Suspension Enhancement System # TWRW22 that you referenced is 8,600 lbs for both sides together. You should note that these kits give you additional suspension support but they do not add to the capacity of the vehicle. They only allow you to carry your current capacity in a safer way.
    view full answer...
  • Timbren Suspension Enhancement For 2003 Winnebago Adventurer 38G
    The Timbren Front axle Suspension Enhancement System part # TWFRW22 is a fit for the 2003 Winnebago Adventurer 38G on the GM Workhorse chassis. I recommend to also add the rear suspension part # TWRW22. The Timbren springs are a great option to level out the motor home and help with body roll when turning corners. If your Winnebago is on a Ford chassis, you need part # TFFF53B for the front and part # TFRF53A for the rear. You may also consider adding a steering stabilizer part...
    view full answer...




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Info for this part was:

Installed by:
Jeff D
Installed by:
Robert C
Expert Research:
Jameson C
Video Edited:
Jacob T
Updated by:
Mary E
Video by:
Jonathan Y

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