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Timbren Silent Ride Suspension for Tandem Axle Trailers - 3" Round Axles - 35" - 7K
Timbren

Timbren Silent Ride Suspension for Tandem Axle Trailers - 3" Round Axles - 35" - 7K

Part Number: T34FR
$1,395.87
Retail:$1,550.97
You Save: $155.10
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Trailer suspension system replaces your leaf spring suspension to provide a stable ride. Walking beams keep weight distributed evenly between both axles. Pivoting arms help keep your trailer level on rough ground. Rubber springs absorb road shock. Great Prices for the best trailer suspension parts from Timbren. Timbren Silent Ride Suspension for Tandem Axle Trailers - 3" Round Axles - 35" - 7K part number T34FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Trailer Suspension Parts - T34FR

  • Leaf Spring Replacement System
  • Camper
  • Car Hauler
  • Utility Trailer
  • Round Axle - 3 Inch
  • Tandem Axle
  • 8000 lbs
  • Timbren

Trailer suspension system replaces your leaf spring suspension to provide a stable ride. Walking beams keep weight distributed evenly between both axles. Pivoting arms help keep your trailer level on rough ground. Rubber springs absorb road shock.


Features:

  • Suspension system provides a smooth, quiet, stable ride for your trailer
    • Replaces your existing leaf spring suspension
  • Walking beams with single pivot points create equalizing suspension for maximum stability
    • Keep weight distributed evenly between the axles
  • Pivoting arms help trailer stay level on uneven ground
    • Ensure all tires hug the road - even on rough, bumpy terrain
  • Double Aeon rubber springs absorb road shock and support the trailer's load
    • Compress and become stiffer and stronger as load increases
    • Act as return devices to minimize rattle and bottoming out
  • Fitted rubber bushings allow the control arms to be fully engaged, ensuring the springs are in use at all times
    • Constructed of tough and long-lasting rubber
  • Heavy-duty steel construction with durable, rust-resistant powder coat finish
  • Virtually maintenance-free
  • Bolt- or weld-on installation - some drilling required
    • Installation requires a 2" x 4" hollow steel crossmember with 3/16" wall thickness (not included)
    • Bolt-on installation requires Grade-5, 5/8" bolts (not included)


Specs:

  • Application: tandem-axle trailers with 3" diameter axles
    • 35" Axle spread
  • Weight capacity: 7,000 lbs
  • Quantity: 2 suspension units
  • 5-Year limited warranty
    • 10-Year warranty on rubber bushings and rubber springs


Dimensions of Loaded and Unloaded Suspension System

Installation Notes:

  • A hollow, 2" x 4" steel crossmember (not included) is required to connect the left-hand and right-hand units on this system.
  • The included axle seats must be welded to your axle beam. If you already have seats on your axle, you will need to grind or cut the welds off to remove those seats and replace them with the Timbren axle seats.

Ride on rubber springs with Timbren's Silent Ride suspension system. This suspension system consists of 2 rugged steel units that work with your trailer's existing axles and hubs to absorb road shock, minimize trailer bounce and rattle - regardless of load size - and help to protect your trailer's components and cargo. The Silent Ride system provides a stable ride by distributing the weight of your trailer evenly. The walking beam allows weight to be transferred between axles, ensuring a smooth ride even on unlevel ground.


Silent Ride replaces your trailer's existing leaf spring suspension to ensure that your trailer will ride smoothly and comfortably, no matter what road conditions you are faced with on your journey.


Timbren Silent Ride Suspension vs. Leaf Springs

The Timbren Silent Ride suspension system is a definitive upgrade over leaf springs. Although leaf springs deliver a stable ride when supporting a load, a trailer with leaf springs will often bounce and rattle when it's empty or supporting a light or off-center load. On the other hand, your trailer can bottom out on bumpy roads if the load is too heavy.


With Timbren's Silent Ride suspension, you'll enjoy a smooth ride whether you're towing an empty trailer or a hefty load. The Aeon progressive-rate rubber springs of the Silent Ride always deliver the same reliable performance, no matter the load size. If your trailer is carrying a light load, or no load, the springs will compress just enough to counteract any bounce. As more weight is added to the trailer, the springs compress and become stiffer, offering more support for heavy loads. And because they rebound in a more controlled fashion than metal leaf springs, the Silent Ride springs do a better job of absorbing road shock to keep your trailer from bouncing and rattling.


Each spring activates only when needed. This reduces body roll and delivers top-notch performance. When your trailer with leaf springs takes a turn, one side of the suspension compresses and takes on more weight, and the other side becomes looser and bounces. This causes rattle and can make the trailer lean to one side. But when a trailer with a Silent Ride suspension takes a turn, one side compresses and becomes more rigid to absorb the weight, and the other side expands to normal height to help steady the load and minimize bounce and rattle. The load stays better balanced, even if it is off-center.


The Silent Ride system also provides smoother load distribution between the 2 axles of your tandem-axle trailer. The equalizers on a traditional leaf spring setup transfer the load from one axle to the other as you travel over uneven ground, but the action is often clunky and jarring. The walking beam on the Silent Ride works to make this transition smooth by incorporating just one pivot point at the center of the unit. The suspension arms on either side of the walking beam are designed to freely articulate around this pivot point to avoid harsh movements and annoying rattle.


Timbren Silent Ride Suspension vs. Torsion Axles

The Silent Ride suspension system is a great alternative to torsion axles as well. While both systems allow either side of a trailer's suspension to operate independently, the Silent Ride suspension system also keeps the weight evenly distributed between both of the trailer's axles, even on unlevel terrain. The walking beam component of the Silent Ride functions like the equalizer in a leaf spring system by shifting the load from one axle to another as you drive over bumps or uneven ground. Torsion axles cannot do this, which can result in not only a rough ride, but also a higher risk of damage to your tires, wheels, and suspension components.


The Silent Ride suspension system also offers greater flexibility for off-road use because of its shock-absorbing springs. Not only do the Aeon springs in the Silent Ride units activate progressively to give just the right amount of support and shock absorption, they also respond immediately. Torsion axles have rubber inside the beam that counteracts shock using compressive resistance, but this doesn't happen until the bar inside the axle twists in response to one side of the trailer going over a bump, for example. This built-in resistance can be effective in maintaining a steady ride, but the design doesn't allow the system to absorb shock as well as the Aeon springs in the Silent Ride setup.


In addition, one frequent complaint about torsion axles is that they cannot be repaired in the event that something goes wrong. But the individual components of the Silent Ride suspension system can be repaired or replaced if needed.



SR7K35T02 Timbren Trailer Suspension - 3" Tandem Axle - 7K - 35" Axle Spread

Installation Details T34FR Installation instructions



Video of Timbren Silent Ride Suspension for Tandem Axle Trailers - 3" Round Axles - 35" - 7K

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for A Closer Look at the Timbren Silent Ride Suspension for Tandem Axle Trailers

Hi there, I'm Michael with etrailer.com. Today we're gonna take a quick look at this Timbren silent ride suspension system. These two rugged steel units are going to replace your trailer's existing leaf spring suspension system. It's going to allow you to use your trailer's existing axles and hubs to absorb road shock. So these are going to minimize your trailer bounce and rattle. And they're also going to help to protect your trailer's components in cargo.

From all the folks I've heard from, that have used these or similar models, they say it's a huge improvement. Brian put these on his cattle trailer. He said it rides so smooth, the cows think they're riding in a Cadillac. Carl put them on his pull-behind camper. He said it's the best suspension he is ever used.

He doesn't have to worry about all his stuff ending up on the camper floor. Arthur said that before he installed these, he bent an axle every six months or so. Now, he hasn't bent an axle in over two years, since he put these on. And that said, he doesn't have to dread hitting a bridge extension joint or expansion joint in his fifth wheel. And now it's no problem.

The bucking has been dramatically reduced and all the doors and drawers of his fifth wheel stay closed. So it is going to be a massive improvement in your ride quality. This kit is designed for your tandem axle trailers with the three inch diameter round axles and a 35 inch axle spread. These do have a weight capacity of 7,000 pounds and there are several different components that are working together to provide that nice, smooth, quiet, stable ride for your trailer. We've got our walking beams here that have this single pivot point.

That's gonna keep the weight distributed evenly between your axles for maximum stability and a nice smooth ride. You've got your pivoting arms, that are going to ensure that all the tires hug the road, even on your rough bumpy terrain. That's gonna help the trailer stay level, even on uneven ground. You've got your double Aeon rubber springs that help you absorb your road shock and support the trailer's load. They've got a progressive rate spring, so designed, so it's going to help compress when you have a heavy load and it becomes stiffer, give you that extra support, it gives you more strength. And then, as it's lighter on the load, it's going to expand out and back to its original size. So it's gonna act as a return device to minimize your rattle and bottoming out. The fitted rubber bushings down here, those are going to allow for the control arms. Kind of hard to see it down there. There it is. Those fitted rubber bushings allow the control arms to be fully engaged, ensures the springs are in use at all times. This does have a nice heavy duty steel construction. It's got a durable rust-resistant powder coat finish, so it is gonna be very tough and long lasting. The rubber is also a very durable rubber, so this is gonna hold up really well for you for a long time to come. It's virtually maintenance free. You're not gonna have to worry about putting air and airbags or anything like that, and so it is going to be very easy to maintain. As far as getting it installed, it is a bolt on installation. The mounting hardware is not included, so you will need six 5/8-inch UNF bolts with lock nets and five 8-inch washers. You are gonna have to do some drilling and welding, will need to weld your axle seats to your axles, and you are going to need a two by four inch hollow steel crossmember to connect the two units together here. But overall, a pretty simple installation. Take some time, but it will give you quite a improvement in your ride quality. So that completes our look for today. Again, I'm Michael with etrailer.com. Thanks for watching.


Customer Reviews

Timbren Silent Ride Suspension for Tandem Axle Trailers - 3" Round Axles - 35" - 7K - T34FR

Average Customer Rating:  4.7 out of 5 stars   (60 Customer Reviews)

Trailer suspension system replaces your leaf spring suspension to provide a stable ride. Walking beams keep weight distributed evenly between both axles. Pivoting arms help keep your trailer level on rough ground. Rubber springs absorb road shock.

by:

This suspension was a game changer on my 2001 20' travel trailer. After multiple broken springs over the years, and loosing the rear axle on a bump heading out of town I bit the bullet and installed the Silent ride. What a difference in handling and overall feel, it's solid & quiet. No worries about road conditions, potholes, or gravel. I have had them on the trailer for a year and about 2500 miles. Towing is a little less stressful.



by:

I love this suspension its quiet and the handling and ride is the best I have ever used on a trailer. Gonna buy another set for my gooseneck trailer. Will never go back to leaf springs!



by:

Been great so far..fabbed removable axle system with the timbrens



by:

Hi, I install two of this part in one enclosed trailer 7x14 and other open trailer 7x14 with 8 lugs on both trailers and nowi drive very safe ,smooth and trusted not have nothing wrong with this part



by:

I installed this on a 2018 wildcat 383mb 5th wheel which has a GVWR of 14,059# and with a weeks worth of stuff for a family of 3 I have 10,700# on the campers axels per CAT scale so this is a perfect fit for the application. Now the hard part was figuring out what the ride height (bottom of my frame to the center of the axels) would be since Timbren's documents only show the unloaded ride height at 6.125", with the stock leaf springs my ride height was 9.375” so that is a 3.25” difference but that doesn’t account for suspension sag. I called timbren they said the ride height at 14,000# would be 4” so basically the suspension would sag 2.125" so I guessed my ride height at 11,000# would be 5” or 1.125” of sag. Based on those numbers I would need to make up 4.5” of ride height so I put a 4”x4” 0.25”wall square tube between the frame and Timbren suspension. Well the Timbren sagged more then I expected, and my final ride height ended up being 8.25”, a full inch lower than factory. I have a lot of overhang behind the rear axel and would drag on occasion at the stock ride height so this inch lower is going to make it worse. I’m going to make a few trips and see how much more the suspension settles then I might go back and add a 2” spacer to raiser camper.

The install took me 2 8hr days with the first day being removing the stock leaf spring setup and prepping the axels/removing the leaf spring pads. The hardest and most time-consuming part was removing the spring hangers off the frame man they did not want those to come off. The instructions don’t tell you where to set the axel camber/arch so it set it to the same angle as the suspension arm when unloaded, 19deg which when loaded and on level ground turned out to be perfect. The instructions also tell you weld the axle to both sides of the axle seat well you can’t get to the inside axle seat since it’s so close the rubber spring.

Now as for the ride what a major difference I used to dread hitting bridge expansion joints now it’s no problem, the bucking has been drastically reduced. We would always have open doors and draws when got to a location now they all stay closed. Items in cabinets are still where we left them, cereal boxes are still upright.



by:

Easy to install product is working well for my application



by:

they have worked great as i pull my trailer daily . until one the axle u bolts broke for some unknown reason. and you can not purchase them from any parts supply house



by:

Installation was a bit more intensive than I anticipated. At the end of our first 6000mi trip, I lost a wheel and the weight of our 7500lb toy hauler was on 3 wheels for up to 60 mi without me even knowing. The suspension and remaining upgraded wheel/tire handled the weight, I doubt the stock leaf suspension would have done the job.



by:

Ok, probably overkill and certainly makes for a premium utility trailer. But compared to other trailers, there’s zero rattling and bouncing around. Install went better than expected too. Did have to weld quick to keep the heat down since the rubbers are right on the other side!



by:

My worries about my trailer have been removed. I am very happy with the suspension system and would recommend these suspension systems.



by:

Awesome product, awesome smooth, awesome load handling. So awesome I'm back ordering jounce-spring helpers from Timbren for my truck. Item # TGMR15MR



by:

I have had both leaf suspensions and torsion suspensions on pull behind campers. I decided to try these when I had to replace my torsion axles. The Timbrens are without a doubt the best suspension I have ever used. The trailer rides much smoother as it creates an independent suspension for each wheel. The rubber pad absorption design adds to the smoothness. The camper is also much more stable when towing and I don,t end up with stuff all over the floor of the camper from a rough ride. I am extremely satisfied and highly recommend this suspension system.



by:

This system is a 100 times better then the spring system that was on it new. We put about 5000 miles on our 5th wheel per year. It is a 2015 Columbus and we love it but the suspension was the typical junk under most RV’s. Springs that are as wide as the frame so the perch mounts stick out past the frame. Basically they are like what you would buy at [generic retail]. They sheared off at the frame and the axle cocked. Over a short amount of time the tire blew and wiped out the side of the RV. The suspension I bought from etrailer was great and fixed all the problems the original suspension had. It was a bit of a trick to figure out ride height of the new suspension. You have to add spacers under the original frame to achieve original ride height. Sounds hard but it is pretty easy.



by:

I used these to replace the leaf springs and equalizers on a 20’ gooseneck cattle trailer that I rebuilt. The ride is great and the usual rattling and clanging of the trailer going down the gravel road is gone. So far I am very happy with the ease of installation and the performance of the suspension. I guess only time will tell about the durability of the rubber components in the long run.



by:

Perfect replacement for my car carrier axles



by:

Worth the money! Super nice ride loaded and empty.



by:

Seems like a great product and service was excellent. UPS lost one of the three parts and was a week long in delivering it, and then said that it was because it was packaged poorly from etrailer. I used a 4x6 steel rectangular tube spacer to get my trailer back up to the original height. Seemed pretty straight forward, but it would be nice if the system could be designed so the user doesn't have to cut the mounting brackets off the axle and re-attach the Timbren brackets.



by:

A more stable ride Wolf-Pup Forrester RV trailer.



by:

Disappointed beyond belief in both Timbren and etrailer. I not only lost a 20plus year customer I also lost a good friend ontop of being out of pocket the entire cost of this silent ride suspension setup and 8 hrs of Labor .I don't even know what to do with the suspension now because its going to cost me $200 plus to ship it back but the original boxes were thrown so doubtfully it will be accepted and lets not forget about the restocking fee per etrailer I will have to pay as well For what ultimately was their mistakes and lack of honesty that caused all off this.. I paid full price plus expedited shipping costs for complete suspension setup that once again(as it seems by other reviews) was missing all the hardware upon arrival..Then it took 3 more weeks to get that totaling 5 weeks when I paid for and was guaranteed by etrailer to have in 1 week..



by:

Photo of installed product.



by:

This system is well worth the money. By eliminating the steel on steel contact when my trailer bottoms out on bad city streets, my axles have not been bent in over two years, where before I had a bent axle every six months. No rattles, bangs, or noise loaded or empty. This is on a 14k tandem flat trailer used to haul an 8k forklift (7k dexter drop axles).



by:

In my honest opinion this is absolutely the only way to go to upgrade your suspensionI have installed the 10K and the 14 K models there’s less resistance while towing and the trailer tracks much better it is smoother the bumps are almost not noticeable highly recommend it



by:

As far as etrailer, service was quick and delivery was also fast. As for the product itself, I would rate it a 1. Even after speaking to a sales rep at Timbren, the suspension has not performed as was hoped and assured that it would. (Although Timbren has attempted to make things right.)

As stated, this is no reflection on etrailer, and would use the company again if needed.



by:

Great suspension system. Some of my customers require an air ride system, but some of them have accepted this system as they do provide the smoother ride that their tools need. Well worth the price, plus there is no spring hangers to wear out ever. Overall great system thanks.



by:

This is a very nice outfit for a dual axle conversion. The only problem I had is that the axle saddles and u-bolts either got lost or didn't ship out. Gave e-trailer a call and they answered right away and were very friendly and helpful. They sent me the parts that I needed and they arived in 2 days. As far as the suspension goes, they seem to be very well made and I can't wait to put these under my boat. Looks to be very little fabrication to change from single axle to this dual axle walking leg suspension. It will definitely be easier and cheaper than than dual leaf spring suspension, and should be a lot better.


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See what our Experts say about this Timbren Trailer Suspension Parts

  • Spring Compression Measurement for the Timbren Silent Ride Suspension System
    I was able to get ahold of Timbren and they said that the suspension compression will be about 1 3/4 inches (static deflection at normal rated load), but you are going to have to take into account dynamic loads as well. You will also have to be aware that the equalizer articulates quite a bit especially on uneven roads, and especially so with the longer version of the suspension # T34FR, you have to allow for good fender clearance above the suspension, It is recommended to have 3 3/4...
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  • Best Suspension Upgrade for a 2018 Northwood Arctic Fox 5th Wheel 32-5M
    The best option to upgrade the suspension on your 2018 Northwood Arctic Fox 5th Wheel 32-5M is to use the Roadmaster Comfort Ride. It creates an independent suspension system that uses center hanger boxes to isolate the leaf springs. It also has additional shocks that will give you a smoother ride than the Lippert Center Point item # LC1565391 and the Timbren Silent Ride item # T34FR. Which Roadmaster system you need is going to depend on your axle size and diameter. I am getting conflicting...
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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Kathleen M
Updated by:
Kathleen M
Employee Wilson B
Updated by:
Wilson B
Employee Manda E
Updated by:
Manda E
Employee Kristina F
Written by:
Kristina F
Employee Michael B
Installed by:
Michael B

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