bing tracking image
  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
2002 Chevrolet Suburban
Timbren

Timbren Rear Suspension Enhancement System

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

2002 Chevrolet Suburban

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

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 TFR1504D can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (6327)
  • Q & A (0)
  • Photos

Timbren Vehicle Suspension

  • 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
  • Includes 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required


Specs:

  • Capacity: 8,600 lbs
    • Do not exceed the vehicle's weight-carrying capacity
  • 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.



FR1504D - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Item # TFR1504D

Installation Details TFR1504D Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.7

3638 reviews
5 Stars
(2896)
4 Stars
(473)
3 Stars
(115)
2 Stars
(69)
1 Star
(85)
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.

by:

They went right on and all the hardware came with them.



by:

good customer service



by:

Easy installation. The truck sits well and feels better on the road



by:

Have not installed product yet,Christmas present for a friend.Box came damaged from postal service,tore open,hopefully all parts are there.



by:

When I called they were very knowledgeable about the products and made sure I ordered what was going to work on my truck.



by:

Very satisfied! Easy to install and use on my Nissan Titan. I didn’t even need to remove the wheel to install it. Now my truck does not squat when pulling a trailer or carrying heavy load.



by:

Worked better than I excepted. I have a old pickup with really tired suspension and this product made it better than new.



by:

Carrieann was awesome in helping try to solve a very difficult problem. The product installed easily just as the direction stated and the video you put on the website was very useful. Thanks



by:

Some soapy water, a short 2x4 and bouncing up and down on the bumper a few times and these were installed. From removal of the old ones til the new ones were in took about 30 mins.



by:

Easy install - took less than 30 minutes. The truck now sits level with the bed loaded.



by:

My rep Jamie is awesome! She confirmed the part for my truck and got it shipped immediately. The product looks strong and was an easy install.



by:

These are the hardest ride you could possibly get loaded or unloaded I would not recomend timbrens to anyone. Had to eat the cost and replace them with air bags. (Aweful product)



by:

fit was good installed in under 1/2 hrs. So far the worked great



by:

Product looks good. Now if only they came with an installer.



by:

Works well



by:

Easy to install on my 2022 RST Silverado, took approx 10 minutes start to finish.



by:

Easy install, test drive went well. Looks like the fix that was needed!



by:

Amazing service. Followed up by amazing shipping!



by:

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



by:

Fast shipping



by:

Great customer service!



by:

It took 3 hours from start to finish the old stops took the most time to remove once installed we went for a ride with the slide in camper it was amazing I would recommend it to others



by:

Happy with this purchase. Keeps the truck level and the ride smooth.



by:

Improved stability quite a bit on my Lance 815 Tundra combination.



by:

What a great product. This has made a night and day difference pulling a 5th wheel.


25
3638
Show More Reviews

See what our Experts say about this Timbren Vehicle Suspension

  • Timbren Spacer Kit Recommendation for 2014 Ford F-150 with a 6" Lift
    Hey Steve, thanks for reaching out and providing all of your details! The Timbren Rear Suspension Enhancement System # TFR1504D that fits your 2014 Ford F-150 measures 8-5/8" tall so you really only need the Spacer Kit # T48AV which comes with some 1" spacers and some 1/2" spacers, which is enough to get you within the 1/2" - 1-1/2" range that Timbren recommends. This helps your OEM suspension control up to 8,600 lbs so you will definitely see an improvement in control and ride quality...
    view full answer...
  • Recommended Suspension Enhancement for a 2014 Ford F-150 To Help Weight Distribution System
    Jacques, it would definitely be a good idea to use the Timbren Rear Suspension Enhancement System # TFR1504D to release some pressure on your WDS while also helping reduce sag. This system has an 8,600 lb capacity, includes the vehicle specific mounting brackets and hardware, and requires no drilling.
    view full answer...
  • Rear Helper Springs for a 2012 Ford F-150 4x4 and Forest River Stealth Model 1913
    Timbren rear helper springs # TFR1504D for your 2012 Ford F-150 4x4 will definitely help with the sag you are experiencing when towing your Stealth toy hauler. But when not towing or carrying a load in the truck bed you will likely experience a stiffer ride, more jarring on bumps than the stock suspension. For a similar option that features a softer spring style we have SumoSprings # SSR-117-40 rated at 1,000 pounds, or # SSR-117-47 rated at 1,500 pounds. These springs will have more give...
    view full answer...
  • Can Timbren SES be Used in Place of Weight Distribution System?
    A Timbren Rear Suspension Enhancement System such as # TFR1504D which fits your 2013 Ford F-150, does not take the place of a weight distribution system. The Timbren systems will help reduce body roll and absorb shock but will not transfer the load of your trailer and distribute it across the axles of your trailer and F-150 in the same manner is a weight distribution system. The Timbrens will also not help to either prevent or reduce sway the way many weight distribution systems will. I...
    view full answer...
  • Recommended Suspension Enhancement To Reduce Sag When Towing Trailer With 2012 Ford F-150
    If you have sag at the back of your 2012 F-150 when towing a load that stays pretty consistent then the best way to help with that is by installing suspension enhancement like part # TFR1504D for a 4-wheel drive or part # TFR1502D if you have a 2-wheel drive truck. These are rubber springs that do not effect the ride of your truck when it is not under load but when towing will become more rigid to help add additional support. Air springs like part # F2525 are a better for your truck when...
    view full answer...
  • Can Timbren Rear Suspension Enhancements Be Used With Weight Distribution On 2008 Ford F-150
    The use of rear suspension enhancement along with a weight distribution kit is not recommended. They will tend to work against one another. If sag on your 2008 Ford F-150 is caused by a load or a fifth wheel or gooseneck trailer then suspension enhancement is the way to go If your F-150 is a 2-wheel drive I recommend part # TFR1502D. This system helps provide additional support to give you a smooth, comfortable ride and will not affect the ride when your truck is empty. It will become...
    view full answer...
  • Installation of a Timbren Vehicle Suspension on a 2014 Ford F-150
    Most likely there is a bolt holding the factory bump stop on your 2014 F-150. You simply raise your truck up off the ground and use a 13mm socket to remove the bolt. Take a look at the video I included to see the removal of the bump stop and installation of the suspension, even though it's on a 2010 F-150 and different Timbren suspension # TFR1504D. Once done, you will be ready to install the new Timbren rear suspension enhancement # TFR1502D you referenced. Ideally, the amount of space...
    view full answer...
  • Rear End of 2011 Ford F-150 Still Sags Even with Weight Distribution
    The problem that you are experiencing is a common issue with 1/2 ton trucks like your 2011 Ford F-150. The rear suspension on 1/2 ton trucks will still allow some sag even when using weight distribution. While making some adjustments to the set up of the weight distribution system might help ultimately you will likely need some rear helper springs to eliminate the sag. The helper springs don't have to be air bags. You could use Timbren Rear Suspension Enhancement System Item # TFR1504D...
    view full answer...
  • Will the Timbren System # TFR1504D Work to Help Level a 2014 Ford F-150 XLT 4x4
    The Timbren Rear Suspension Enhancement System # TFR1504D is a great product to use for your 2014 Ford F-150 XLT 4x4. It will help to support up to 8,600 lbs and you can forget about them after the installation. They come with a limited lifetime warranty and a satisfaction guarantee. Even though these have an 8,600 lb capacity they will not increase the weight rating of your F-150. Suspension enhancement systems are designed to work with a suspension system that is in good working order. If...
    view full answer...
  • Timbren vs. Firestone Ride Rite
    The Timbren Rear Suspension Enhancement System # TFR1504D is designed to engage when a load is put upon your 2013 Ford F-150. The picture shows the basic fundamentals of how the Timbrens work so you can see that when your truck is not loaded, the Timbrens are at full size and when a load is put upon your truck the Timbrens compress. My technical contact at Ride-Rite confirmed that the psi should be set between 5 and 10 which should not alter your ride or raise your truck when not loaded....
    view full answer...
    Image 1 for
  • How To Upgrade the Factory Trailer Hitch On a 2010 Ford F-150
    The factory trailer hitch on your 2010 Ford F-150 has a class III rating. This will be sufficient to tow your boat and trailer but if you would like to upgrade to a class IV then the only option for this is the TorkLift SuperHitch Hero Trailer Hitch Receiver part # TLF1005H. The other options for your F-150 will not work because the bumper brackets are all integrated into the trailer hitch which was pointed out by the dealer. Please note, due to the weight of your trailer you will want...
    view full answer...
  • Installing Timbren Rear Suspension Enhancement on 2013 Ford F-150 with 10 Inch Frame to Axle Gap
    The Timbren Rear Suspension Enhancement System # TFR1504D referenced in your question is confirmed to fit your 2013 Ford F-150. I spoke with my contact at Timbren regarding the 10 inch gap you measured between the frame and axle on your truck. He stated that the total height of the spring, bracket, and included spacer will be about 7-1/2 inches. He recommended adding an additional Spacer # A25723-90AH00 to get the system up to the desired height on your truck. This will allow for a 1-1/2...
    view full answer...
  • Are Timbrens Better Than Air Bags for a 2011 Ford F-150 Because of Higher Weight Capacity
    The Timbren Rear Suspension Enhancement System part # TFR1504D is an excellent option for a 2011 Ford F-150 that does indeed offer the highest weight capacity at 8,600 lbs. That said, this is only for payload/tongue weight and does not need to be equal to the weight of the trailer. The drawback of this option is that they can sometimes affect the unloaded ride quality. The best option to retain factory unloaded ride quality would be to use air bags, the Air Lift LoadLifter 5000 Air Helper...
    view full answer...
  • Compatibility of Timbren Suspension Enhancement with 5th Wheel Hitch on 2013 Ford F150
    The Timbren Rear Suspension Aeon springs for 4WD vehicles, part # TFR1504D will be compatible with your existing mounting brackets for your Pullrite SuperGlide. The Timbren springs simply take the place of the factory bump stops mounted to the underside of the frame members directly above the rear axle. If the brackets from your hitch did not interfere with the bump stops, they will not prevent the Timbren springs from being installed. I have confirmed this with my Timbren representative. I...
    view full answer...
    Image 1 for
  • How Tall Is The Timbren Rear Suspension Enhancement TFR1504D For 2014 Ford F-150
    I had our warehouse measure the Timbren Rear Suspension Enhancement # TFR1504D you were looking at for your 2014 Ford F-150, and the overall height is right at 8-5/8". With that measurement in mind and your 9" clearance, you do not need to add a spacer. I included a video of the # TFR1504D for you to take a look at.
    view full answer...
  • Will Timbren's Work with a B&W Gooseneck Hitch on a 2012 Ford F-150
    Yes, the Timbren Rear Suspension Enhancement System part # TFR1502D for 2WD or part # TFR1504D for 4WD will work with the B&W Turnoverball Underbed Gooseneck Trailer Hitch part # BWGNRK1104 you have installed in your 2012 Ford F-150. The mounting brackets do not interfere with one another as one mounts underneath the frame (Timbren's) and one mounts on the side of the frame (B&W). The Timbrens will provide excellent support when using your truck to pull your gooseneck trailer. In addition...
    view full answer...
  • Will Timbren Springs Work With Weight Distribution Hitch on 2014 Ford F-150?
    Yes, you can absolutely use the Timbren Rear Suspension Enhancement System # TFR1504D on your 2014 Ford F-150 with a weight distribution hitch to pull your camper. The Timbrens will not interfere in any way with your weight distribution system as they simply sit above your truck's rear axle so you're fine using both.
    view full answer...
  • Will RAS for 2013 Ford F-150 Work With Skyjacker Leaf Springs
    The RoadActive Suspension Custom Leaf Spring Enhancement Kit part # RAS3611-YHD which is a fit for a 2013 Ford F-150 is designed for use with factory leaf springs. If you have aftermarket leaf springs I recommend jounce style enhancements, the Timbren Rear Suspension Enhancement System part # TFR1504D. If the vehicle is lifted you'll need to add spacers, the Timbren Spacer part # A25723-90AH00.
    view full answer...
  • Can Timbren Suspension Enhancement Fit 2013 Ford F-150 with Roadmaster Active Suspension Installed
    The Timbren kit part # TFR1504D which fits your 2013 Ford F-150 can install with the RAS kit part # RAS3611-Y you already have installed. You should make sure you aren't overloading your truck though as normally having to have two suspension enhancement kits on a vehicle would indicate it being overloaded. Should also note that these kits cannot allow you to tow beyond the capacity of your truck. I attached an install video link for the Timbren for you to check out as well.
    view full answer...
  • Will the Timbren Springs # TFR1504D Fit on a 2015 Ford F-150 with Custom 5th Wheel Brackets
    Yes, the Timbren rear suspension system # TFR1504D you referenced will work with the Reese fifth wheel frame brackets # RP56034-53 or # RP50087-58 on your 2015 Ford F-150 with a 5-1/2 foot bed. The reason is the Timbren springs # TFR1504D installs on the bottom and inboard side of the frame and the Reese base rails # RP56034-53 and RP50087-58 mount on the outboard side of the frame. See figure 1 item 1 and 2 in the alternate instructions I linked for you. I also included a video review...
    view full answer...
    Image 1 for
  • What To Do When A Weldnut Breaks Off In The Frame While Installing A Timbren SES
    Hi Jay, It sounds to me like the weldnut in the frame broke free and is allowing the bolt to spin. You're going to have to get into the frame to put pressure on the weldnut to remove the bolt. From some pictures I've seen it looks like there should be two smaller slots on the outside of the frame that you could possibly stick wrenches or a skinny pry bar in to press against the nut. If that's not an option you'd need to drill a small hole in the frame to do this. Once you get the bolt...
    view full answer...
  • Suspension Enhancement for a 2013 Ford F-150 with Draw-Tite Gooseneck Trailer Hitch Installed
    Firestone Ride-Rite kit # F2542 is designed to work ONLY on trucks that have a B and W hitch installed. Since you have a Draw-Tite hitch we can scratch this one off and look at kit # F2525. Kit # F2525 has brackets that mount to the outsides, bottoms, and a little on the insides of the truck frame rails on your 2013 Ford F-150. The Draw-Tite gooseneck hitch for your truck also has brackets that mount to the outsides of the frame so kit F2525 will not work with the hitch installed. A different...
    view full answer...
  • Suspension Enhancement Recommendation for 2000 Ford F-250
    For your 2000 Ford F-250, I recommend using the Timbren Rear Suspension Enhancement System # TFR150SDE. This is a confirmed fit for your truck, won't be an issue with your underbed B&W gooseneck hitch, and will provide some shock absorption and load support. These will also give you independent side to side support. If you prefer air bags, there are some models not compatible with B&W hitches but the Air Lift LoadLifter 5000 Ultimate Air Helper Springs with Internal Jounce Bumpers...
    view full answer...
  • 5th Wheel Towing Capacity of a 2014 Ford F-150
    The fifth wheel or gooseneck towing capacity of a 2014 Ford F-150 can vary from 5,500 lbs to 11,300 lbs depending on options such as engine size, axle ratio, cab type etc. If the towing capacity of the vehicle exceeds the loaded weight of the trailer then yes so you can tow it but you will need to verify your exact towing capacity since there are so many options. In order to tow a fifth wheel trailer, you will need a fifth wheel hitch, fifth wheel hitch brackets/rails, and an in bed wiring...
    view full answer...


< Previous
123. . .4



Do you have a question about this Vehicle Suspension?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Adam R
Expert Research:
Adam R
Employee Lori W
Expert Research:
Lori W
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Andrew K
Video by:
Andrew K
Employee Jonathan Y
Video by:
Jonathan Y
Employee Jeff D
Installed by:
Jeff D
Employee Cole B
Installed by:
Cole B
Employee Robert C
Installed by:
Robert C
Employee Jacob T
Video Edited:
Jacob T
Employee Andrew L
Video Edited:
Andrew L
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Mary K
Updated by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Anna W
Updated by:
Anna W
Employee Michael B
Updated by:
Michael B
Employee Carrie F
Updated by:
Carrie F
Employee Lincoln B
Updated by:
Lincoln B
Employee Andrew S
Test Fit:
Andrew S
Employee Shane H
Test Fit:
Shane H

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


<