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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
THIS ITEM IS NOT A FIT FOR
2020 Toyota RAV4
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Timbren

Timbren Rear Suspension Enhancement System

Part Number: TWRW22
In Stock
$496.65
Retail:$584.30
You Save: $87.65
Vehicle Suspension
Not Confirmed to Fit

2020 Toyota RAV4

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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 Rear Suspension Enhancement System part number TWRW22 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Vehicle Suspension - TWRW22

  • Bump Stops
  • Towing/Load Leveling
  • Timbren
  • Rear Axle Suspension Enhancement
  • Extra Heavy Duty
  • Suspension Only

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 when towing or hauling gear
    • Allows the leaf spring ample movement while cushioning light loads
    • 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 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 when loaded. 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 when loaded or towing because the rubber has more travel.



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

Installation Details TWRW22 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.7

3511 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.

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Fast Shipping



by:

These look like they will cure the evils of the heavy load God's. Easy to install and they look like they are quite stout. I will find out in a couple of weeks from now.



by:

Hitch fit great and the instructions were easy to follow.



by:

Shipping was so efficient arrived days before estimated. Order was placed and within an hour was shipped!!!



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I HAD THESE INSTALLED ON MY VAN OVER A YEAR AGO, I JUST CHECKED THEM OUT AND THEY ARE STILL IN GREAT CONDITION. THE FACTORY ONES I HAD PREVIOUSLY WERE COMPLETLY WORN DOWN. THE TIMBREN LOOK THE SAME AS WHEN THEY WERE INSTALLED.



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Install was easy. Raised our Thor Gemini up as product said it would. Great job etrailer!



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had this product before. left it on my old truck when I traded. Now I have to replace it, really like what it does for my towing a travel trailer. just have to find time to put it on. speedy delivery arrived undamaged, which is nice.



by:

They definitely reduced sway and lean when driving. But also seems like you really feel every bump and increase road noise?
I assume since vibration from axle can now travel directly to frame?
Might need to upgrade shocks?
Might soften liitle over time?
Might need to get softer onesv
Only have gone 80 miles with them so far.
Will give it another few hundred miles and see what feel then.

Overall pretty happy So far.

2017 Thor Gemini TX



by:

Strainer/basket is holding up well after one year of use in our RV, no issues.



by:

Works great on my 2016 town and country for hauling my pop up camper.



by:

Fast delivery. Disappointed with the instructions. Sense the item was ordered vehicle specific. The instructions said tighten bolts to manufactures specifications.



by:

Easy install & fast shipping! Works gre at!



by:

Works great on my Honda odessey !! Great customer service as always!



by:

Very fast shipping, had product in 2 days! Very easy to install. Hardest part was lifting the RV.



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The product first arrived in a damaged box with one of the washers missing, but ETrailer did resupply that. The hardest part was finding a shop able (needs the right tools to depress coil springs) and willing (a potential liability issue messing with suspension) to replace it for a reasonable cost. Eventually a local tire shop agreed to. This was for a 2014 Honda Odyssey, especially for pulling a pop-up. Took two camping trips last summer, one before and one after installation, and I have been pleased with the added stiffness in the rear suspension. It made about 1 to 1.5 inch of difference in resting position when fully loaded and towing and has helped smooth out bumps and humps in the road - both when towing and not.



by:

great product, truck does not squat as much when trailer is attached



by:

Have not driven yet, just installed. Added Monroe coil-overs as well, thanks etrailer.



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Delivery was fast, instal was quick & easy. Later today I will see how they work when I hook up to the 5th wheel. By all indications right now I believe they exceed my expectations.



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Price was good compared to other sites. Shipped very fast. Installation was very easy.



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Put them on and it is exactly what I need to keep truck level when hauling fifth wheel. Easy to install too



by:

I would recommend this product to anyone. I pull trailers with a 1/2 ton truck and will never have another one without this product on it.



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I put this product on my Trooper. The install was easy is you take the back wheels off. I towed this weekend and I did not bottom out. If they hold up over time, this is a great product.



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BIG difference in handling a load or trailer ... what a great product!!!



by:

Did my due diligence researching this product, including other customer reviews.
Can't wait to install them, but the Winnebago has been put to sleep for the season. I'll submit a performance report in the spring.



by:

15 mins to install and what a difference…. Went from a few inches of sag in the rear to only an inch and over 1000lbs tongue weight didn’t know the trailer was attached to the truck


25
3511
Show More Reviews

See what our Experts say about this Timbren Vehicle Suspension

  • 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...
  • SumoSprings For a 2005 Winnebago Voyage 35A on Workhorse W22 or W24 Chassis
    It appears your 2005 Winnebago Voyage 35A sits on Workhorse W22 or W24 chassis. These chassis will use the Front # SSF-280-47 and Rear # SSR-280-54-1 SumoSprings. I really do not like Timbren # TWRW22 being used as these springs are very stiff compared to the SumoSprings. This causes more shock to transfer through the suspension rather than being absorbed by it.
    view full answer...
  • Timbren Rear Suspension Enhancement System for a Food Truck on a 2005 Workhorse P42 chassis
    I have a great solution for you that will not require you to lift your food truck. I recommend the Timbren Rear Suspension Enhancement System item # TWRW22.These hollow rubber springs have an 8,600 lbs capacity and sit above the rear axle to help stabilize and level your food truck. They work independently from side-to-side to minimize sway and help compensate for off-center loads. We have had other customers, with food trucks, use these successful and write us back. We also have a set...
    view full answer...
  • 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 will...
    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 # RM-RBK22-RSSA...
    view full answer...

Do you have a question about this Vehicle Suspension?


Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Robert C
Installed by:
Robert C
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Mary K
Updated by:
Mary K
Employee Wilson B
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Wilson B
Employee Michael B
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Michael B
Employee Carrie F
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Employee Jonathan Y
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