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 # TFR1504E
lowest price pledge
Retail:$314.67
Our Price: $225.40
You Save: $89.27
Vehicle Suspension

Will this fit?

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

This item qualifies for Free Shipping
Shipping Weight: 12 lbs
Quantity: 
TFR1504E - Jounce-Style Springs Timbren Rear Axle Suspension Enhancement
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

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. Lowest Prices for the best vehicle suspension from Timbren. Timbren Rear Suspension Enhancement System part number TFR1504E can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (2261)
  • Q & A (75)
  • Photos
  • Why etrailer?

Timbren Vehicle Suspension - TFR1504E

  • Timbren
  • Jounce-Style Springs
  • Rear Axle Suspension Enhancement
  • 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 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: 6,000 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 truck's rear axle under a heavy load. The Timbren Suspension Enhancement System levels the vehicle.

When hauling heavy loads in the cargo area or by pulling a trailer, you will often see the rear of the vehicle 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 vehicle'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. The resistance from Timbren's Suspension Enhancement System works with the vehicle's factory suspension to keep the vehicle level and improve your driving performance.


Diagram of the Timbren spring installed

The Timbren system has a vehicle-specific 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 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 provides increased resistance, stiffening the suspension and keeping the vehicle 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 the 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 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 helping 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 passing of a semi) because the movement from the trailer is not transferred to the vehicle. This also works to make the sway subside quicker.


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 as 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 - no air hoses are needed to be run, no compressors or gauges to hook up, and no manual adjustments necessary. The rubber construction causes Timbren's springs to be more elastic than similar products constructed of micro-cellular urethane. More elasticity allows for a more comfortable ride because the rubber has more travel.



FR1504E - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Installation Details TFR1504E Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Timbren Rear Suspension Enhancement System - TFR1504E

Average Customer Rating:  4.7 out of 5 stars   (2261 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.

- TFR1504E
by:

Rear suspension pads work great. Ride is still like factory with no load unless driving over a big bump at high speed. When towing a 32 foot travel trailer the sag in back end of truck is greatly reduced with a lot more control. Easy to install. The downside is when truck is full with passengers and not towing anything the added weight makes the ride rougher. Shipped on time. 575558



- TFR1504E
by:
2016 Ford F-150

The Timbren TFR1504E fit my 2016 Ford F150 truck perfectly. It was easy to install using just a floor jack and a jack stand. I bought this enhancement system because my wife and I enjoy camping and pull a Rockwood travel trailer. Prior to installing the system I had noticed some squatting and body roll when towing. Not sure how much this system has helped because I have not towed the trailer since installation. 412158


Comments
It is working great.
Tom P - 07/29/2018

41637

- TFR1504E
by:
2018 Ford F-150

Great information and tracking ability. Package arrived on time as promised. Installed the kit the next morning, fit perfectly 567633



- TFR1504E
by:

Great product. Makes truck ride a little stiffer but it is worth it when loaded or hauling a trailer. No more sag and handles better when trailering. 651679



- TFR1504E
by:
2018 Ford F-150

Fairly simple to install. Did not have to Jack up my 18 f150, but would have probably made it easier. Install was pretty straight forward bolt on operation. I Haven't pulled my 28 ft camper yet. The bump stops I removed were 1/3 the size of the new ones. They should work real well. No noticeable ride difference with no load. Thanks. 641299



- TFR1504E
by:
2016 Ford F-150

Night and day difference while towing. This is one of the best additions to my truck. My camper is around 7k pounds. My back end doesn't sag as much and doesn't bounce as ki when towing. Not noticeable when unloaded. I recommend this to everyone e who tows. 613728



- TFR1504E
by:
2016 Ford F-150

I just completed installation of my Timbren Rear Suspension for my 2016 Ford F150. In 2012 I purchased this same product from etrailer for my Ford F150, which I upgraded to the 2016. I have a 5th wheel and the Timbren product allows my vehicle to be perfectly level in all situations. A great product!!! 274107


Comments
After 1 year heavy use, I still strongly recommend the Timbren shock as the perfect solution for a level towing, hauling ride.
Frank P - 07/20/2017

26379

- TFR1504E
by:
Ford F-150

Works perfectly, very easy to install does exactly what it said it would. Have 6000 pound 24 foot travel trailer truck sets perfectly level have F150 half ton 4 by 4. 600324



- TFR1504E
by:
2016 Ford F-150

Installed on 2016 F150 Platinum, without jacking it up, in 1/2 hour per side. One part has word "LEFT" printed on it, yet there is no diagram showing which is left. Seemed obvious it was driver side, but clarity of diagram would have helped. Stock bumpers had maybe 6" of gap. These have about 1.5" of gap. I was very concerned about the backend hopping when hitting small bumps (unloaded). Maybe 15 miles of driving and I simply have not noticed this replacement at all. Thats a great sign. Next month I will tow trailer, that is the important test and the reason for purchasing this upgrade. 521868



- TFR1504E
by:
2017 Ford F-150

got the product when stated , went on simple enough but used google to really see how things went together. Timbren doesn't give very good instructions with their product wish they would put diagram so as to be able to see how brackets go, but happy so far haven't put load on the truck yet that's coming up with a trip in august with my 30ft camper and truck loaded for trip guess will come back and let you know how the product works after the trip , but etrailer delivered when they said they would thanks will keep you in mind for future purchases. 544811


Comments
If you click the provided link, you an see a video of the Timbren Aeon spring being installed on a 2016 Ford F-150.
-- Mike L - 07/24/2018

41429
Comments
well its been almost a year and the timbren worked like i was hoping my truck had litlle to no sag pulling my 30ft camper and it helped with my anti sway hitch and the front of my truck didnt fill out of control well worth the money happy so far
russell w - 07/23/2019

58129

- TFR1504E
by:
2016 Ford F-150

Not sure if it was a returned product or horrible packaging on Timbren's part but the item was only about 75% painted when it arrived. It was pretty obvious the parts where banging together in the box which made a large portion of the paint chip off. Raw steel exposed to salt during the winter would eat these things alive. Not looking forward to spending several hours sand blasting and repainting a product that was suppose to come that way. 406297



- TFR1504E
by:
2016 Ford F-150

Product has done exactly what I wanted it to do while towing with the F150 (Limit the sag and porpoising). The only potential negative is that you will bottom out easier over speed bumps but you can avoid that by slowing down to a normal speed. Also after 6 months you rarely feel it. Great Product and worth every penny. 488710



- TFR1504E
by:

Very happy with these products. Super easy to install. 610949



- TFR1504E
by:
2016 Ford F-150

Ordered these (6,000 lb Kit) to cure getting too nose high when towing after installing a Bilstein 5100 Level Kit on my 2016 F150 SuperCrew 4x4 (front struts set on max 2.10" setting sitting nearly perfectly level). Tow a 29' overall length travel trailer (~5,500 lbs) and for work we use a 20'x8' enclosed trailer (~9,000 lbs when loaded). Use a WD hitch, but still get the nose up when pulling both. Install was easy. Read through the instructions and watched a video before they came in. Crawled underneath and installed in about 30 minutes after I received them. Didn't remove the spare or the heat shield like the video I watched showed. A lift would have made it easier of course, but can be done in the driveway if you like doing stuff yourself. Used the included spacer and have about a 1" gap, which falls in the advised .5" to 1.5" range from the instructions. I haven't gotten to use them with the work trailer, but I have pulled the travel trailer and they do exactly as advertised, cures the sag, and nose doesn't go up at all. May be slight nose up with the work trailer, but I wouldn't believe it will be like before. Driving while hooked up feels smoother, too, with less body roll/lean in turns. So, overall satisfied with the purchase. The only reason this is getting 4 stars is that, like others have stated, the parts that were painted left a lot to be desired. Very sloppy with some areas that were already flaking off and one part had a spot that was completely missed by paint. The piece that goes underneath the axle to secure the contact plate is not even painted, it's just raw metal. So, I'm curious about what that will look like after one salty winter here in MO. I may find some time before the winter hits and take everything off and do some painting myself, but for $215 you'd kind of think that wouldn't be something to worry about doing with a brand new part. 543563


Comments
After 1 year, I’m still very satisfied. Have towed many times with them and the truck stays right at level. This will be something I order for every truck I get in the future. Improves towing without the cost of airbags. I didn’t have to wait more than a few weeks for the rust to appear, though. Had to take everything off and apply a couple coats with some industrial grade Rust-o-leum paint and have been doing good so far. Frustrating to have to do that, but at least I know to do it every time in the future.
Blake - 07/19/2019

57983

- TFR1504E
by:
2016 Ford F-150

I have a 2016 Ford F150 Regular Cab with 6.5 foot box and 5.0 engine, 6400 lb payload package, 9.75" ring gear with 3.73 gears with a locker. (Hard to find!) Ease of installation is easy, with even minor mechanical skills. I took my time and it was 40 minutes to install both sides. Took some measurement of the factory bump stop distances to the axle - 6.5 inch's approximately. (Would take a lot of weight to compress it that far!! Have hauled some rocks before, almost 1 ton and it was still 3 inchs from touching the axle!) After installing I took some measurement of the gap between the plates and the rubber that will come into contact with when the suspension compress's. Left side (Driver) was 1.25 inch. (Full gas tank.) Right side (Passenger) 1.50 inch. Have not driven it yet to see how the suspension will ride before these Timbren Rubbers will come into play. Purchased these to help when I haul a 700 Yamaha Grizzley ATV (750 lbs approx.) and tow a camp trailer with a 550 lb tongue wt. approx. Separately the truck would be level, but with both it was squatting it to much. I am hoping this helps in that situation & to help stabilize the ride. Gave a 3 for easy of installtion, but yet to be determined how well it will help when towing & or hauling ATV or both, and how the ride will be empty. 471198


Comments
I spoke with my Timbren representative, who tells me that its likely the full tank of gas is causing the 14 inch space differential between the driver/passenger Aeon spring and the axle. They do have spacers available that are as small as a half inch, but all that would do in your case is make the other side 1/4 inch closer to the axle. Any load thats capable of compressing the suspension so the springs contact the axle would cause both springs to contact at the same time, so that small differential wouldnt be anything to be concerned about. Let us know if youre interested in the spacer, Timbren will send you one if youre interested.
-- Mike L - 01/30/2018

33985

- TFR1504E
by:
2016 Ford F-150

Solid Product! Yeah it's a stiffer ride when loaded But that's the sacrifice made to have more control of the haul while underway. Definitely recommend to anyone wanting to stay more level with a heavy boat/trailer setup as in my case. Not that install is hard but removal of spare tire before install, may have helped with space if you don't have a lift. 511931


Comments
Still holding up great. Have a friend that went with airbags , and is constantly battling leaks
Cory - 05/22/2019

55674

- TFR1504E
by:

Product works great, 100% better when I’m towing. I have absolutely no complaints about the product. The only issue I had was the package was short 2 washers that the instructions called for. I didn’t contact the company, because I have Spare washers and it was a lot easier to use what I have versus contacting them. 574500



- TFR1504E
by:
2016 Ford F-150

Recently installed these on my 2016 F150 4x4 Supercrew. Product was shipped quickly and arrived on schedule, and boxed up nicely. Install was relatively quick - about a 1/2 hour (a ratcheting wrench was helpful). Towed the boat and gear again for an annual trip, and the sag I experienced last year was greatly diminished and the truck handled better. Ride is very comfortable while on the rubber. Unloaded, there is a bit of a jarring bump when the rubbers are contacted after the 1 1/2 inch gap, but its only noticeable if you remember how it rode before... They did their job, and I would purchase again. However, as others have pointed out, the finish on the metal parts leaves some to be desired - the paint was flaking off at several locations of the parts in the box. Since the install, rust is apparent on these locations. I will be removing, removing the rust, and refinishing to make it more durable... 526471



- TFR1504E
by:
2015 Ford F-150

I have been towing a 7500lb camper with my 2015 Ford F-150. Prior to installing the Timbren suspension, the sag in the back was very noticeable. The F-150 also is known for having a softer suspension which translates into more suspension travel while under load, making for a very "boat in the waves" type ride. After installing the system, which took about half an hour, there is a noticeable difference. The rear end hardly drops once the camper is hooked up and the ride is much better. I would highly recommend this product to fellow F-150 owners as it makes towing a heavy trailer much easier. The installation was simple! I did not install the spacers and I did not even need to jack up the truck to install the product. I had plenty of room underneath the truck. It only leaves about an inch of gap between the timbren bag and the axle versus the wide gap of the factory product. You will notice it, while not under load, if you hit a large bump. Other than that it is pretty unnoticeable when traveling with no load on the truck. Thank you Timbren! Roger 514301



- TFR1504E
by:
2017 Ram 5500

Self Installed on my 2017 Super Cab F150 4x4. Stock unloaded ride height was 9 3/4" clearance from top of tire to bottom of rear fender arch. I pull about a 5500 lb travel trailer with WD hitch. This lowers ride height by 1.5" to 8 1/2" clearance. Installation was straight forward, only issue for me is that the lower bracket that goes around the differential/axle was unpainted raw steel. I shot some matt black enamel on it to help with rust before installing. I did not use the extra rubber disc, as there would of been only about 3/4" of axle travel unloaded and I did not want an overly harsh ride. A test drive unloaded, showed that the ride was only slightly more stiff, and not enough to make much of a difference of a stock ride without. There is about 2" of gap or free travel of axle to rubber stopper when the truck is unloaded. Loaded/towing my trailer, the ride was improved over stock -no Timbren. I have about 1 " of travel before contact is made with the rubber stoppers. This smooths out the 'bucking" or sway motion that you can sometimes get while towing on uneven surface roads at speed. I would only recommend adding the extra rubber spacer disc if you regularly carry a large payload. This is a good product for a great value, that will make your towing, or load carrying more comfortable and safe. I would've rated 5 stars except for two reasons: the unpainted brackets and the thread area on the rubber mounts that is fully loaded with paint and makes threading the rubber mount bolts more difficult than it should be. 472157



- TFR1504E
by:
2015 Ford F-150

Product arrived within a business week. Took a couple days for me to get around to installing it on my Ford 150 Lariat 4x4. Not bad to install, I had to do it laying on my back in my garage. Finally hooked up my 4th wheel to my Andersen hitch today. Truck was level, 5th wheel was level, and I was happy. Ready to rock 'n' roll. 420451



- TFR1504E
by:
Ford F-150

Great Addition to my F150. I occasionally carry a heavy load, and this really helps keeping the truck level. We also tow a camper and it helps stop sagging when going over bumps and valleys. 857029



- TFR1504E
by:

I towed a 26 ft. Travel trailer 600 miles last week with the new Timbrin’s in place. They kept my load level and helped stabilize sway. A good product overall! 851390



- TFR1504E
by:

I tow a travel trailer. I bought these to help the rear springs recover quicker over bumps. They work great. I feel much more in tune with the trailer now and less bouncing. The item shipped and arrived quickly. 845253



- TFR1504E
by:
Roadmaster

Easy to install , works as it should. The only issue I had was they interfered with my Roadmaster active suspension system so I had to remove it. I wish I could’ve kept both unfortunately on the newer Fords that’s not possible. 817625


34
2574
Show More Reviews

Ask the Experts about this Timbren Vehicle Suspension

  • Suspension Enhancement to Reduce Sag on Lifted 2018 Ford F-150 When Towing
    The best way to fix the sag you are getting on your lifted 2018 Ford F-150 when towing a trailer is to use the Timbren Rear Suspension Enhancement System # TFR1504E which is designed for this exact situation - reduce the amount of sag on a truck when it is towing. The Timbrens will get more rigid with the more weight put on them and ensure your '18 F-150 does not sag as you tow. The issue is that you have a 6" lift, and assuming it is a suspension lift (and not a body lift) you can add...
    view full answer...
  • Best Way to Stop Trailer Sway for 2016 Ford F-150 Towing 9,000 lb Trailer
    Suspension enhancement like the SuperSprings Custom Suspension Stabilizer and Sway Control Kit # SSA28 and the Timbren Rear Suspension Enhancement System # TFR1504E that fit your 2016 Ford F-150 can help sway to a degree, but to truly solve the problem the best option by far is a weight distribution system with sway control. The reason for this is these systems work to prevent sway on the trailer before it starts while the suspension enhancements you referenced are designed to reinforce...
    view full answer...
  • Using the Timbren Suspension Enhancement System On a Lifted 2015 Ford F-150
    We have both front and rear Timbren Suspension Enhancement Systems for your 2015 Ford F-150. For the front of your truck you will want to use part # TFF150G and for the rear you will want to use part # TFRTT1504E. Timbren recommends a distance of 1" from the bottom of the bump stop to the top of the contact point. You can achieve this distance on trucks that are lifted using increments of the Timbren 1/2" Spacer part # TA25722-90P00 and the Timbren 1" Spacer part # A25723-90AH00 until the...
    view full answer...
  • Comparing Timbrens and SumoSprings for 2019 Ford F-150
    For all out support the Timbrens part # TFR1504E are the best option for your 2019 Ford F-150, but they have a reputation for being a bit harsh when unloaded. So in my opinion the best solution is the SumoSprings part # SSR-117-47 since it's a better balance of suspension support and ride quality. Only way I would go with the Timbrens is if the vehicle is going to be almost only driven when towing. I attached an install video for the SumoSprings on a similar 2017 Ford F-150 for you...
    view full answer...
  • Recommended Suspension Enhancement System for 2018 Ford F-150 Dropped 4 Inches
    The Timbren Rear Suspension Enhancement System # TFR1504E is a fit for a factory height 2017 or 2018 Ford F-150. To drop the truck height will require custom fabrication as you stated. There isn't a spacer, just the brackets and the jounce spring, so this may not be the best option for you. My recommendation is to use a system that doesn't require that extra fabrication. You can use the Roadmaster Active Suspension Kit # RAS3611-B which will give you a mechanically active system to...
    view full answer...
  • Can Timbren Front Suspension Enhancement Install on Lifted 2018 Ford F-150
    You can install the Timbren front suspension kit part # TFR1504E on a 2018 Ford F-150 with a lift kit but you'll need to use spacers to take up the additional space created. Timbren recommends a distance of 1" from the bottom of the bump stop to the top of the contact point. You can do this by using increments of the Timbren 1/2" Spacer part # TA25722-90P00 and the Timbren 1" Spacer part # A25723-90AH00 until the 1" of space is acquired.
    view full answer...
  • Recommended Rear Suspension Enhancement System for Occasional Towing with 2020 Ford F-150
    Since you're not planning on towing all the time, I recommend going with the Timbren Rear Jounce-Style Springs # TFR1504E because they install very easily and the system is basically maintenance free. Since there are no air bags to fill, there are no lines to run and no extra parts, like a compressor, to possibly buy. This system has a capacity of 6,000 lbs and will do a great job at cushioning your ride by absorbing road shock and preventing your 2020 Ford F-150 from bottoming out.
    view full answer...
  • Timbren Suspension Enhancement Kit Recommendation for 2020 Ford F-150
    The Timbren suspension enhancement kit I recommend for your 2020 Ford F-150 is the Timbren Rear Suspension Enhancement System # TFR1504E which is a fit for both 2WD and 4WD models of F-150. The reason this is the best one is because the spring in this kit is designed for use on passenger trucks like yours, while the other kit has a more rigid spring that is meant to be used on tow trucks and service type vehicles. The Timbrens will improve your truck's handling and performance due to...
    view full answer...
  • Does Timbren Rear Suspension Require Spacer on 2018 Ford F-150
    While the Timbren Rear Suspension Enhancement System # TFR1504E may be able to technically fit without using the spacer, it will likely not offer you the best performance. It is supposed to be pretty tight and without the use of the spacer, the Timbrens will have to travel more, so they won't be quite as good without it. I highly recommend trying to get the spacer on the system to get the most out of the system.
    view full answer...
  • Suspension Enhancement Recommendation for 2018 Ford F-150 Towing Heavy Trailer
    For your 2018 Ford F-150 I recommend the Timbren suspension enhancement kit part # TFR1504E because it will give you the support you are looking for when towing your heavy trailer and will not be as high maintenance as an air bag kit. The install is also much simpler too. Basically you replace your current bump stops with this kit and you have a rubber spring that activates when there's a lot of weight on your truck's suspension that helps provide the support needed to prevent sag. I attached...
    view full answer...
  • Sway Prevention for Jayco Jay Flight SX7 Towed By 2020 Ford F150
    As kind of a rule of thumb, suspension enhancement like helper springs or Timbren Aeon springs are most effectively used to suspend loads carried in the truck bed, but they're not the best choice for suspending a trailer's tongue weight. For instability caused by a trailer (or more specifically, crosswinds and turbulence from oncoming or passing traffic acting on the trailer), a weight distribution system that's been properly tailored to the as-towed tongue weight of your Jay Flight...
    view full answer...
  • Timbren Suspension Kit Recommendation for 2016 Ford F-150 4x4
    Both of the kits you mentioned are a fit for your 2016 Ford F-150. The difference is that the part # TFR1504E has a 6,000 lb capacity and the part # TFRTT1504E has a 7,000 lb capacity. You would want to go with the lower rated spring as it will be a smoother ride quality. The higher capacity will be harsher. A 13 mm socket will be used to remove the bolt that holds your current bump stop in place. You basically will then need to use the attached diagram to assemble all of the Timbren...
    view full answer...
  • How to Reduce Sag and Increase Stability on a 2017 Ford F-150
    Yes, the Timbren Rear Suspension Enhancement System part # TFR1504E will do a good job of compensating for the additional weight of the wheelchair and cargo carrier on the back of your 2017 Ford F-150. They will provide you with both additional support and reduced body roll. They are an upgraded bump stop designed to replace the factory bump stops. Once you install them you are good to go as they will not require adjusting. The installation is extremely straight forward so even if you decide...
    view full answer...
  • What Timbren Kit Fits 2017 Ford F-150
    In 2015 Timbren had to release a new fit for the Ford F-150 so what you have from a 2014 will not fit a 2017. What you'll want is the part # TFR1504E which is a confirmed fit and will work well. I attached an install video for kit for you to check out as well.
    view full answer...
  • Timbren Suspension Enhancement Recommendation for 2019 Ford F-150
    For your 2019 Ford F-150 the Timbren Rear Suspension Enhancement System # TFR1504E is a great option because they will improve your truck's handling and performance when you are towing but will not affect your regular, unloaded ride. When your F-150 is towing or you have a load that causes the rear end to sag a bit, the rear of your truck will disproportionately be affected so that the front of the truck rises a bit. This means your F-150 won't handle as well because the front tires...
    view full answer...
  • Timbren Suspension Enhancement Recommendation for 2015 Ford F-150
    For your 2015 Ford F-150 4x4 you would want the part # TFR1504E which is a confirmed fit.
    view full answer...
  • Suspension Enhancement Recommendation for 2016 Ford F-150 Carrying Sand in Truck Bed
    To reduce the sag you are experiencing with your 2016 Ford F-150 when you have the truck bed loaded you would want to use the Timbren kit part # TFR1504E that you referenced. This will provide you with the suspension support you are looking for and won't affect your unloaded ride quality.
    view full answer...
  • Will Timbren Increase Towing Capacity 2018 Ford F-150
    Our suspension enhancement kits like the Timbren part # TFR1504E that you referenced will not give you more towing capacity than what the vehicle came with from the factory. It will just allow you a safer and more stable way to continue towing within the capacity. If you are currently under the capacity for your 2018 Ford F-150 the Timbren kit part # TFR1504E will work well for you and will be a great way to get additional support.
    view full answer...
  • What Is the Correct Size Timbren Spacer for a 2018 Ford F-150
    The Timbren Rear Suspension Enhancement System for your 2018 Ford F-150 is part # TFR1504E which uses an M10 bolt to attach the spring to the bracket. Therefore, you will need to use the Timbren Spacer part # TA25722-90F00 for 1/2" or part # TA25723-90AD00 for 1" which both have a 1/2" bushing.
    view full answer...
  • Best Solution for Reducing Rear Suspension Sag of 2018 Ford F-150 When Loaded
    Yes, for your 2018 Ford F-150 a Timbren like the part # TFR1504E (which is a custom fit for your truck), is exactly what you need. This will give you the rear suspension support you need to greatly reduce sag when you have your truck bed loaded or if you are towing a trailer. What's great too is that unlike air bag kits which do a similar thing you don't have to worry about maintaining air pressure in the bags, ever worrying about air leaks, plus you have an easier install. The picture...
    view full answer...
  • Installation Of Timbren Rear Suspension Enhancement System On 2016 Ford F-150
    There should be clearance when using the Timbren Rear Suspension Enhancement System # TFR1504E without load in the truck on your 2016 Ford F-150. I recommend removing the spacer. The empty ride of your vehicle is not to be effected by the system meaning that the axle shouldn't engage the spring unless there is an applied load. The only reason I recommend removing the spacer is because having the springs engaged all the time will increase the rigidity of your unloaded ride. When used...
    view full answer...
  • Will Timbren Rear Suspension Enhancement Improve Bucking on Ford F-150 with 5th Wheel Trailer
    A lot of the bucking and feedback issues you are having when towing your 5th Wheel with your 2016 F-150 may be happening as a result of the 8 inch Ranch Hitch Offset # AM3139 you referenced in your question. The offset you are using pushes the tongue weight of your setup further back, which can result in a lot of the movement you are experiencing. Other than switching to an actual 5th Wheel Hitch, such as the B&W Companion w/ Slider, part # BWRVK3400-5W, which is an adapter hitch that...
    view full answer...
  • How To Reduce Rear Sag With Equal-i-zer Weight Distribution System and 2019 Ford F-150
    The Timbren Rear Suspension Enhancement System 2019 Ford F-150 part # TFR1504E will help to reduce the rear sag on the Ford F-150. However, I do recommend to take a look at the weight distribution setup first to make sure the system is not under-adjusted. If there is not enough weight being transferred to the front axle then rear may sag. You may need to add spacer washers or raise the L-brackets. I recommend to take a look at the "weight distribution adjustment" section of the installation...
    view full answer...

Do you have a question about this Vehicle Suspension?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality vehicle suspension for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate vehicle suspension information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Jeff D
Installed by:
Robert C
Video Edited:
Jacob T
Video by:
Kathleen M
Video by:
Jonathan Y
Test Fit:
Randy B
Updated by:
Mary E
Written by:
Sarah W

At etrailer.com 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.