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Timbren

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

Part Number: T49UV

40 Reviews

$1,396.98

Retail:$1,552.20

You Save: $155.22

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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" Square Axles - 35" - 7K part number T49UV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.

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Timbren Trailer Suspension Parts - T49UV

Highlights

7,000-lb Capacity: Handles heavy tandem-axle trailers with consistent load support.
Double Aeon Rubber Springs: Absorbs road shock for a smoother, quieter ride on any terrain.
Walking Beam with Single Pivot: Keeps weight evenly shared between axles for stable towing.
Pivoting Arms: Help keep the trailer level and all tires in contact on rough or uneven ground.
Heavy-Duty Steel Build: Durable, rust-resistant frame designed for long service life.
Bolt- or Weld-On Setup: Installs on 3" square axles with a 35" axle spread (hardware not included).

Features to know about

Smooth Ride on Any Road: Rubber Springs Absorb Shock and Keep the Trailer Steady

Rough pavement or uneven ground can make a trailer bounce and rattle. The Timbren Silent Ride suspension system replaces the leaf springs with Aeon progressive-rate rubber springs that soak up road shock and keep the trailer level. These springs get stiffer as the load increases, so the ride stays stable whether the trailer is full or empty. The rubber also rebounds in a controlled way, cutting down on bounce and protecting cargo from harsh jolts.

Even Weight Distribution for Better Control: Walking Beams with a Single Pivot Point

When weight shifts unevenly between axles, handling suffers. The Silent Ride’s walking beam design keeps things balanced by using a single central pivot point that shares the load smoothly between both axles. The result is a steady ride with less body roll and sway, even when the ground isn’t level. Every tire stays planted so traction and braking feel consistent.

Built to Handle Heavy Loads: 7,000-lb Capacity and Heavy-Duty Steel Construction

This system is made for serious hauling. Each of the two suspension units is built from heavy-duty steel with a durable, rust-resistant powder coat finish, giving it the strength to handle up to 7,000 lbs of total weight capacity. The tough materials and simple mechanical design mean it’s virtually maintenance-free and built to last through high mileage and rough use.

Quiet Operation and Less Maintenance: Virtually Maintenance-Free Design

Metal-on-metal rattle is common with leaf springs, but the Silent Ride system runs quiet. Rubber bushings keep the control arms engaged and eliminate play that causes noise. With no metal springs to flex and squeak, it delivers smooth, near-silent operation and needs almost no upkeep once installed.

Flexible Installation for Custom Builds: Bolt- or Weld-On Setup

The system comes ready for either bolt-on or weld-on installation, giving flexibility for different trailer builds. It’s designed for tandem-axle trailers with 3" square axles and a 35" axle spread. With the required 2" x 4" hollow steel crossmember in place, it installs as a solid, reliable upgrade that transforms how the trailer rides and handles.

Specs

Application

Application: tandem-axle trailers with 3" square axles
Axle spread: 35"

Weight and Capacity

Weight capacity: 7,000 lbs

Quantity

Quantity: 2 suspension units

Warranty

Limited warranty: 5-Year
Warranty on rubber bushings and rubber springs: 10-Year

SR7K35T05 Timbren Silent Ride Trailer Suspension - 3" Tandem Axle - 7K

SR7K35T-Base and P067SR7K35T-Base and P015

4.6

40 reviews

5 Stars		(33)
4 Stars		(2)
3 Stars		(2)
2 Stars		(2)
1 Star		(1)

by: Eric 09/15/2026 One Year Later

We swapped the air ride on our helicopter trailer for this system and it is WAY better than air ride. No hoses, no compressor, minimal maintenance, and no adjusting for ride smoothness. One note is that dependent on your trailer setup this can be a pretty rigorous install that absolutely must be done correctly to ensure everything is square and tracks correctly.

by: Cody 03/26/2025 One Year Later

put these on a dump trailer with 8k axles. had to make an adapter to fit the 8k axles 3-1/2 tube. The ride is great compared to springs.it is a little bouncy when fully loaded but still no complaints.

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Victoria H.

3/26/2025

I'm glad these improved the ride for you Cody, and the install looks good too! What are you usually hauling?

by: Antonio 08/11/2026 One Year Later

Outstanding product. The only downside is that you guys made me look really bad with my client because y’all delivered me only half of the order first after waiting for 3 weeks and I was supposed to install it on a big project BBQ Pit trailer.

by: Luke 11/03/2026

System looks great! A big improvement from my locked up torsions. Seems well built and was not bad to install. Used on a older livestock trailer, looking forward to the improved ride!

by: Chad 01/10/2024 One Year Later

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.

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by: Matt.T 08/27/2019

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.

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by: Jeremiah 03/08/2024 One Year Later

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

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by: Ward 05/08/2021 One Year Later

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.

Ward One Year Later

5/9/2022

The new suspension is working perfectly. 100 recommend. No springs for me.

by: Bryan A 01/28/2020 One Year Later

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.

Bryan A. One Year Later

1/29/2021

So far all is great! The highways around here are in horrible condition. My trailer has the straight high brush fenders so you can see the tires and axles in the side mirror as you drive. Those tires are jumping like crazy on the rough pavement, but the trailer body is so smooth the cows think theyre riding in a Cadillac!

by: Chris 08/21/2022

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.

Chris One Year Later

8/22/2023

After a year and approximately 8k mi on the suspension, the Timbren Silent Ride seems strong. The silent aspect of this suspension is no longer silent after things have broken in but not nearly as squeaky as the leaf setup. My stock 2-38” axle beams are slightly bent up at the ends so I’m in the process of upgrading those to 3”. I would also like the next step up in springelastomer but can’t justify the price north of $500 for the 4 rubber springs. When loaded I only have about 1-34” up travel currently before axle bottoms out on frame. My only complaint or recommendation would be for future designs to enable more suspension articulation and up travel capabilities.

by: David 10/06/2022

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: Randy 07/08/2025

Fast shipping no issues.

by: Nick 09/27/2022

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: Arthur 08/12/2020 One Year Later

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: Howard M 06/03/2019 One Year Later

Photo of installed product.

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by: Mark 05/14/2020

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.

by: John 06/05/2024 One Year Later

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: Dorland Shaffer 10/16/2019 One Year Later

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: RV DEPOT 06/08/2021 One Year Later

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: Catherine 10/09/2022

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: N.C HOUSTON 05/22/2024 One Year Later

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: James 09/27/2018

I have not installed them yet, but by the looks of of them I am very pleased and expect my trailer will ride and handle much better. I won't have to worry about which spring is going to break on our next trip. They look very hefty and I'm inpressed with the engineering and how they look. After I get them installed I will give you an update with pictures.
Thanks
Jim

by: Dahlen 12/07/2024

Great service got them quickly but haven’t had a chance to install them yet. I purchased them to install on a gooseneck stock trailet

by: Heath 02/03/2024 One Year Later

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: Benjamin 11/06/2018 One Year Later

Pricey but well worth it no more bent axles and broken springs which means no down time

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Info for this part was:

Updated by:

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Written by:

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