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  1. Vehicle Suspension
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  3. Bump Stops
  4. Towing/Load Leveling
  5. Rear Axle Suspension Enhancement
  6. Extra Heavy Duty
Timbren Rear Suspension Enhancement System
Timbren

Timbren Rear Suspension Enhancement System

Part Number: TFRSD
In Stock
$496.65
Retail:$595.98
You Save: $99.33
Vehicle Suspension

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

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

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.


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: 12,000 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.



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

Installation Details TFRSD Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.7

3503 reviews
5 Stars
(2784)
4 Stars
(458)
3 Stars
(113)
2 Stars
(67)
1 Star
(81)
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.

by:

Easy installation. 15 mins total time. Highly recommended if tow anything.



by:

Very easy to install. I got the product in two days. Love etrailer products. THANKS.



by:

nice ride with my 5th wheel



by:

Excellent communication and insane fast shipping!



by:

Just installed on 2008 Hyundai Entorouge seems to work well. Only problem was that I had buy new hardware because the supplied hardware was standard not metric.



by:

Product does not help rear swag with fifth wheel camper but a half inch. On brand new truck as well. Not happy with product. Called to return them and want me to pay 27.00 shipping and stated in email that was sent to me I couldn’t return if installed. I’m not understanding this ? Do not buy ! I won’t be doing any more business with etrailer . Not helpful at all



by:

Works like expected. Keeps the truck looking level even under heavy loads.



by:

Fast delivery and easy installation



by:

I received my order within days. It was exactly as I expected. The product works as advertised. I am a now a lifelong customer of etrailer.com.



by:

Great service and quick shipping



by:

Yes about one year ago i installed this product with excellent results so far.



by:

Installed in about 15 minutes,very easy.I pick up my new truck camper next week so I do not know how it works yet,but looks like it will work like its suppose too



by:

Simple installation and the cost is gre at.



by:

Very efficient and great to work with. Will definitely use your company again. Thanks



by:

Product arrived on time and does exactly what it describes. Little stiffer ride without a load but with a load it made my truck handle so much better at low and high speed.



by:

Just as overtired , they stiffened up the ride , plus no more sag in rear ended of truck .



by:

Just received them just install them looks like they work great etrailer is always right on spot



by:

Just what my truck needed to stop the sag when I hook up to my 5th wheel.



by:

Excellent customer service



by:

Excellent addition to my hd truck makes towing a lot easier



by:

Super fast to instal and make towing my 36ft camper a much smoother ride!



by:

Very quick delivery, earlier than I expected. Easy to install. Just what was needed for rear weight support when pulling a trailer.



by:

Easy to install and does not affect the ride till you have a load, then they help support the load. Good product!



by:

Great Product, arrived quickly and packaged well.

Will be buying from them in the future.



by:

Seamlessly easy


25
3503
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See what our Experts say about this Timbren Vehicle Suspension

  • Recommended Suspension Enhancement for 2000 Fleetwood Motorhome on Ford Chassis
    For your 2000 Fleetwood motorhome a little more information would help. A Ford F-550 chassis is a class C motorhome and a F-53 chassis is the class A motorhome. If you are just looking for shock absorption assistance that will help with body roll and stability, but sway control and steering are better addressed with other products. SInce you haven't hinted at that issue, I'll give you some recommendations for shock only. If you have the F-550 chassis motorhome, I recommend the Timbren...
    view full answer...
  • What Trucks Does Timbren Helper Springs FRSD Fit
    Timbren rear helper springs # TFRSD are designed to fit the following vehicles: 1999 - 2006 Ford F-350, 450, and 550 Cab and Chassis F-450 1988 - 1998 Ford F-450 and 550 Cab and Chassis F-450 1999 - 2006 Ford F-350, 450, and 550 Cab and Chassis F-550 1988 - 1998 Ford F-450 and 550 Cab and Chassis F-550 But no 2010 models. A cab and chassis model is what they make service and utility vehicles out of. You have probably seen them on lots with the cab and no truck bed. If you can tell me...
    view full answer...
  • Recommended Sway Control and Ride Suspension for 2004 Gulfstream Independence with Ford f-550 Frame
    For your 2004 Ford F-550 motorhome chassis, the Roadmaster Rear Anti-Sway Bar # RM-1139-143 is the correct fit for your motorhome if it is up to 34 feet long. It if it longer, then you will instead use # 1139-144. The rear anti-sway is the most help out of all components. You will likely need longer u-bolts # RM-590050-00 or # RM-590050-10. Next, the Front Anti-Sway Bar # RM-1139-148 is the next best step followed by the Roadmaster Reflex Steering Stabilizer with Mounting Brackets for...
    view full answer...
  • Difference Between the Two Recommended Timbren Systems for a 2003 Ford F-450 Cab and Chassis
    The difference between the two part numbers is the capacity of the spring or the amount of support it can provide. Both the part # TFRSD and the # TFFSD4B (not the part # tfrtt350f) are confirmed to fit your 2003 Ford F-450 Cab and Chassis. The # TFRSD has a capacity of 12,000 lbs so it would be for heavier duty applications whereas the # TFFSD4B is for 6k loads. You want to go with the one closest to what you would need since going to heavy would cause a harsh ride and too light would...
    view full answer...
  • Help Controlling Body Sway as a Motorhome Travels Down the Highway
    One of the biggest complaints the motorhome owner's have is controlling body sway. There are a couple of things that you can do that might help decrease the body sway the you are experiencing. First, installing an Anti-Sway Bars, like the Roadmaster Rear Anti-Sway Bar # RM-1139-143 and the front sway bar # RM-1139-148. Installing anti-sway bars will help minimize the side-to-side and will allow your motorhome to keep an level ride. Next, installing a suspension enhancement system, like...
    view full answer...
  • Recommendations to Reduce Sag Caused by Hauling Heavy Loads and Trailer Towing
    The Timbren Rear Suspension Enhancement System # TFRSD will absolutely make a big difference in reducing the sag and create resistance that works with your 2006 Ford F-550 dump truck's factory suspension to help level out heavy loads - without affecting your unloaded ride. Timbrens also can help provide weight distribution and sway control for applications where weight distribution systems cannot be used, like when towing 5th wheel or gooseneck trailers. Check out the attached FAQ for...
    view full answer...
  • Weight Distribution System for a 2002 Jayco Jayhawk
    To stabilize your car trailer behind your Jayco Jayhawk I recommend the Blue Ox TrackPro Weight Distribution w/ Sway Control item # BLU36FR. This weight distribution system has built-in sway control that limits side-to-side movement of your trailer. It has a tongue weight range of 200 lbs - 600 lbs and a maximum capacity of 6,000 lbs. This will do a far better job of addressing stability when pulling a trailer than the Timbren Rear Suspension Enhancement System item # TFRSD you were looking...
    view full answer...

Do you have a question about this Vehicle Suspension?


Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Installed by:
Jeff D
Employee Robert C
Installed by:
Robert C
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
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Employee Mary K
Updated by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
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Michael B
Employee Carrie F
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