bing tracking image
  1. Vehicle Suspension
  2. Timbren
  3. Rear Axle Suspension Enhancement
  4. Jounce-Style Springs
  5. Extra Heavy Duty
Timbren Suspension Enhancement System - Rear Axle
Special Savings on Select Timbren Items. See Cart for Savings.

Timbren Suspension Enhancement System - Rear Axle

Item # TNRNVHD
Retail:$468.32
Our Price: $398.07
You Save: $70.25
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.

Shipping Weight: 8 lbs
Add to cart
In Stock
Instant Rebate
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

Need help with installation?
Locate installers near me
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. Great Prices for the best vehicle suspension from Timbren. Timbren Suspension Enhancement System - Rear Axle part number TNRNVHD can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (6013)
  • Q & A (0)
  • Photos

Timbren Vehicle Suspension - TNRNVHD

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

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
    • Becomes more rigid as more weight is added for great performance when you're hauling a heavy load
      • Increases stability
      • Reduces vehicle sag
  • Works independently - side-to-side adjustment
    • Helps compensate for off-center loads
    • Reduces body roll when swerving and turning corners
  • Acts as shock absorber, taking the brunt of bumps and rough roads
    • Extends the life of your vehicle's suspension
  • Includes 2 Aeon hollow rubber springs, custom-fit brackets, and hardware for a simple installation
    • Installs directly onto frame
    • No drilling required


Specs:

  • Load-leveling capacity: 6,000 lbs
    • Timbren springs will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's recommended weight limit.
  • 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. 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 because the rubber has more travel.



NRNVHD Timbren SES with Aeon Hollow Rubber Springs - Rear Axle

Installation Details TNRNVHD Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Timbren Suspension Enhancement System - Rear Axle - TNRNVHD

Average Customer Rating:  4.7 out of 5 stars   (6013 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.

by:
Nissan

worked excellent on keeping the rear end up while towing. Did not change vehicle handling at all. Highly recommended. 2012 Nissan NV2500



by:

Seriously fast delivery!
Seriously the
easiest installation ever!
Jack up the truck, Remove two bolts, set into place the new bump stops, install two bolts, job done!
Start to finish, Botha sides 30-minutes.
Great ride height, even better ride quality!
Anyone considering this product should definitely go with Timbren.
The Best!



by:

Takes the sag out for a bargain, but not as good as real springs



by:

Great product would recommend and buy again. Instalation was a snap did it in about 2 hours front and rear.



by:

this fit perfectly on my 2016 nv2500. It really helped with my sag. would not hesitate to buy again.



by:
2021 Nissan NV 2500



by:



by:

I know it will be lovely when loaded or the trailer on. However,it rides like a wagon empty with brand new premium shocks and struts empty. Thud thud thud. You really cannot feel the shocks or suspension. Found exact same item plentiful for 60 bucks on eBay after I bought these for 250. I may cut these in half or put air bag on. I do not like the ride empty. No hard feelings. It is a good product maybe just not for me.



by:

About a 1/2 inch difference in gap at the bump stop perch but still within parameters. Truck sits perfect with trailer attached. Haven’t towed yet. After towing if they perform like they should will upgrade to a 5 star. Easy to install, definitely needed 2x4 and jack. 2011 Silverado ext cab with 30 ft Genisis 5th wheel.



by:

Was able to install these with a 15mm flex head ratchet wrench and lifted the rear of the truck to make it easier. 30 minutes to take off 4 nuts and put em back on. 2 minutes assembling the timbrens with the added spacer. I have a f350 with a salter and plow. Loaded with salt the lights shoot up and in the snow ?? it’s like hitting hyper drive and you’re blinded. These helped big time. Very happy so far.



by:

The pro: The longer, heavier bump stops worked great when hauling my mustang home from Chicago. The truck stayed level and handled great.
The con: I had to remove the bump stops for everyday use. They limited my suspension travel causing a stiffer ride.



by:

I am so glad I bought these for my truck. I was able to install them myself using a jack and jackstands. The ride is bit rougher now; but the suspension is totally awesome compared to before. I am able to haul a bit more weight when needed.



by:

Haven’t had it on long, but so far so good. 1999 F350 dually. Bolted up nicely. Total job took 10 minutes. Have hauled two gooseneck loads of hay and truck drives SO much better. Nice and level. Money well spent so far.



by:

very good product ,received just in time and fit perfectly on my GMC savana 2000 .Be sure to clean the two receptacle thats help.
très bon produit , reçu dans les délais et s'ajuste parfaitement . Assurez-vous de nettoyer le receptacle cela facilite l'installation.



by:

The timbrens actually did what they were suppose to do. However, once I starter driving out west I notice the timbrens were riding on the axle which cause the speedometer to jump around depending on the road. I would recommend them if you are hauling or towing a camper or RV. I was going to contact etrailer about maybe removing a spacer for one set however the other set came as one unit. The bottom line is the Timbrens does stabilize your load for safe travels. I will be contacting etrailer soon to assist in correcting the problem...Road trip from Idaho,Colorado,Wyoming,and Utah were beautiful... Thank you etrailer



by:

Definitely a must have when towing..stiff without a load but night and day difference while towing my travel trailer, better traction, steering and braking. Easy quick install..only issue I had was with the long bolts they sent with the spacer kit (optional for lift) the bolt diameter was too wide to fit through the holes on the bracket..but a trip to the local hardware store took care of that.



by:

Pros: Cheaper and easier to install than airbags, do the job when load is enough to compress the shock, with added weight or towing, then it stiffens the rear very nicely.
Cons: Doesn't do anything until there is 2-3cm of compressed shock. It sits above the contact point, doesn't touch. Under normal driving, there is no benefit/improved stiffness/anti sway in rear or a leveling of the factory rear sag in a 2022 or newer Toyota Tundra.
If had it to do over, would have put some kind of spacer in between product and upper included bracket, the supplied bolt is long enough to accommodate, to eliminate the gap, and lift the rear 1-2 cm. Should do it anyway, maybe when swapping to summer wheels next month.



by:

I’d seen similar products rated in the 4,000 lb ratings but I went with these. I’m not a mechanic but I removed the factory bump stops and installed both these in 30 minutes or less. I used my rolling jack and lifted from the drop hitch and easily removed the old ones and soapy water and 1/4 twist and these were on. Placed a block of wood in the space between these coils and lowered the jacks then pressed it with my tractor to confirm full engagement. I carry a lot of tools on a 2020 Chevy 2500 I do feel a bit of butt bounce on large bumps but other than that I’m very pleased.



by:

The order with Will at etrailer was great. He was very helpful and knowledgeable, Installation was not easy but not too bad, The hardest part was removing the factory pieces I removed them from below which was a blind nut removal operation. This is on a 2017 Mercedes Sprinter motorhome. After removal of the factory pieces I discovered that access is much easier on top between the tire and the mud flap, I turned the front wheels inward and they didn't have to be removed. The front of the motorhome had to be raised quite a bit to get the Timbren piece jnserted. Also I learned to tighten the bolt and nut in the Timbren bumper as much as possible before installation because there is no access to the bolt head when tightening the top nut to keep the bolt from turning, preventing tightening the nut.



by:

First off the product was beat up with paint/power coating missing in several places on both. I was putting on a brand new truck with less than 800 miles on it so I elected to touch up before install. I’ve hear a lot about Timbren but never had them. I had airbags on my F350 but when I switched to a new Tundra I went with Timbrens. I’m a bit disappointed in the ride. Feels like I can feel a “bump” in the truck from the rubber pick hitting the axle when I go on a bumpy road. Thinking I should have went with airbags. As far as having a load on the truck and helping with the squat, they do as they are advertised.



by:

I bought these to prevent the "squat" of carrying a load in a Ram 1500.It took only 30 minutes to install. Now when carrying a load or towing a travel trailer the truck is a better position.
The only thing you will notice is the smoothness of the ride. It's not, it is stiff. I'd rather have the stiff than the nose pointing to the moon.



by:

These work great for giving you a solid towing experience when loaded heavy; however, when driving empty you definitely get the jounce bumper “into the air” experience when driving on moderate to rough roads. I have the recommended gap installed between the axle and the timbrens, but with terrible midwest roads and highways it doesn’t seem to be enough gap. Smooth roads it rides great. It’s driving 80mph on the expressway and hitting potholes or large cracks where these will hit causing uncomfortable harsh ride.

I’ve resorted to installing and then subsequently removing these anytime I use my travel trailer for longer trips (30minute removal time). I tow a 7000lb loaded travel trailer with an f150 and just needed something to make the soft half ton suspension from porpoising too much on bad-roads. Mission accomplished when towing as I said these things work great for heavy loads. It almost rides better with heavy loads…. I was going to give airbags a try but the reviews from others have scared me from those because even with airbags at the lowest setting you still get the jouncing on bumpy roads.



by:

They do exactly what I wanted them to do. They support my boat trailer and when not towing, they don’t touch the bumpers everything’s great.



by:

Easy install took about 20 minutes on my 2017 Ram 3500 SRW. Had about 1/2 inch clearance as recommended. Loaded up my 5th wheel (2350 hitch weight) and about 200 lbs of gear in the bed. Just got back from a 800 mile camping trip through mountains of TN. You can really feel the difference around those sharp corners and uneven surfaces. The truck felt firm and controlled not hard and jarring as some have mentioned. Going over those overpasses with the wonderfully smooth (Not) joists was greatly improved. The truck would squat and rebound again, with a firm controlled response. Driving without a load felt the same as before without them. I would highly recommend these! Ordering from etrailer continues to be my go to option!



by:

So just got them installed today 3/27/24 haven't hooked up the 5th wheel yet but will be this weekend so we'll find out if they are good as everyone claims they are fingers crossed. Install was crazy simple took about 30min(had to find a wrench) have about 1/2in gap between the axle, really excited to test them. Will update the review after this weekend.


25
3507
Show More Reviews

See what our Experts say about this Timbren Vehicle Suspension

  • Suspension Enhancement Options For 2020 Nissan NV 2500
    Seems like you're needing some suspension enhancement! I recommend using the RoadActive kit # RAS3614-T. This will help your suspension from 0 to 100% travel. It's also adjustable to get the right amount of support. If that's not enough, get some helper springs # SSR-210-47 in the rear, these will only engage when your vehicle sags enough to hit the bump stops. If you're only looking to help the last half of your suspension travel and not hinder your smooth ride when you're not hauling,...
    view full answer...
  • Recommended Suspension Enhancement For 2020 Nissan NV 2500
    I have another suspension enhancement option for you, but at this time there is not a Firestore or Air Lift Air Helper Spring Kit that is confirmed to fit your 2020 Nissan NV 2500. While you are correct that the 5.6l V8 engine is the same engine used in the Nissan Titan, the suspension is different between the two. For your NV 2500 I recommend the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3614-T as it offers 2000lbs of support for your suspension, but also due to it...
    view full answer...
  • Does Timbren Suspension Kit Increase Towing Capacity of Vehicle
    Hey Kyoung, so the Timbren suspension kit part # TNRNVHD does provide an additional 6,000 lbs of suspension support but it does not actually increase the vehicle's towing capacity. Instead it basically just beefs up the suspension so that it doesn't sag as much which helps create a safer driving experience when loaded.
    view full answer...
  • Is There An Air Bag And Compressor Available For A 2017 Nissan NV 2500
    Though I may have another option, I checked with Firestone and Air Lift and, unfortunately, neither currently make a kit that will fit a 2017 Nissan NV 2500. With that being said, the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3614-T is a highly recommended product. These do a very good job of helping with squat issues as well body roll and sway. The install is pretty quick and easy, and as long as you can jack your vehicle up by the frame, it is also pretty easy to...
    view full answer...
  • Suspension Enhancement that Fits 2014 Nissan NV 2500
    We have suspension enhancement kits that fit your 2014 Nissan NV 2500 like the Timbren part # TNRNVHD but we do not have any air bag kits that fit.
    view full answer...
  • Recommended Suspension Enhancement System For 2015 Nissan NV 3500
    The Firestone System, part # F2430 you mentioned is not a fit for your 2015 NV 3500 but i do have a solution that will work for you. I recommend the Timbren Suspension, part # TNRNVHD. This is a simple installation by replacing the bump stops on your vehicle. These do not effect the ride when your Nissan is not under load. As more weight is added these springs act independently to act as a shock absorber and give you a much smoother ride. No drilling is required when adding these springs....
    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 Jeffrey L
Expert Research:
Jeffrey L
Employee Jacob T
Video Edited:
Jacob T
Employee Mary K
Written by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Updated by:
Michael B
Employee Carrie F
Updated by:
Carrie F
Employee Bethann B
Updated by:
Bethann B
Employee Jonathan Y
Video by:
Jonathan Y

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.