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Timbren Silent Ride Suspension for Tandem Axle Trailers w/ 3" Round Axles - 7,700 lbs

Timbren Silent Ride Suspension for Tandem Axle Trailers w/ 3" Round Axles - 7,700 lbs

Item # T89MR
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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. Rubber springs absorb road shock. Axle spread is ideal for small tires. Great Prices for the best trailer suspension parts from Timbren. Timbren Silent Ride Suspension for Tandem Axle Trailers w/ 3" Round Axles - 7,700 lbs part number T89MR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Trailer Suspension Parts - T89MR

  • Leaf Spring Replacement System
  • Camper
  • Car Hauler
  • Utility Trailer
  • Round Axle - 3 Inch
  • Tandem Axle
  • 7700 lbs
  • Timbren

Trailer suspension system replaces your leaf spring suspension to provide a stable ride. Walking beams keep weight distributed evenly between both axles. Rubber springs absorb road shock. Axle spread is ideal for small tires.


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 round axles
  • Weight capacity: 7,700 lbs
  • Quantity: 2 suspension units
  • Axle spread: 33"


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.



SR7733T02 Timbren Trailer Suspension - 3" Tandem Axles - 7.7K

Installation Details T89MR Installation instructions



Video of Timbren Silent Ride Suspension for Tandem Axle Trailers w/ 3" Round Axles - 7,700 lbs

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




Video Transcript for Review of Timbren Trailer Suspension - 7,700 lbs Silent Ride Suspension - T89MR

Hi there, I'm Michael with etrailer.com. Today, we're gonna take a quick look at this Timbren Silent Ride Suspension System. This is going to replace your trailer's existing leaf spring suspension with these two rugged steel units that work with your trailer's existing axles and hubs to absorb road shock, help minimize your trailer bounce and rattle, and to help protect your trailer's components and cargo. From the folks that I've talked to or heard from that have used this kind of system, they say it is a huge improvement. Some folks said that they installed it on their cattle trailer and they said the ride is great, the usual rattling and clanking of the trailer going down their gravel road is gone, the trailer body is so smooth that the cows think that they're riding in a Cadillac, I thought that was pretty funny reading that review. Another customer said that they've used both leaf suspensions and torsion suspensions on his pull behind campers, he said the Timbrens are without a doubt the best suspension he's ever used, he appreciates that he doesn't end up with stuff all over his camper floor.

And then one of our other customers did say that they used to bend an axle about every six months before they switched, now, he hasn't bend an axle in over two years. So these are gonna be a really nice improvement for you, should take away a lot of that movement and make it a much smoother ride. This kit is designed specifically for your tandem axle trailers with a three inch diameter round axle and with the 33 inch axle spread. The weight capacity for this set is 7,700 pounds, so you do wanna make sure that that's going to work for your trailer. We do have several components here that are working together to provide that nice, smooth, gentle, quiet, stable ride for your trailer.

So one of the components is our walking beam here, so you can see we've got the single pivot point that's going to keep the weight distributed evenly between the axles for maximum stability and a nice smooth ride. Then you have your pivoting arms here that are going to ensure that the tires hug the road even on rough, bumpy terrain, it's gonna help the trailer stay level on uneven ground. You do have the double Aeon rubber springs here on the inside, those are gonna absorb that road shock as that pivoting arm comes up, it's gonna help support the trailer's load. Those are progressive-rate springs, so they're gonna compress and become stiffer and stronger as the load increases, so the heavier the load, the stronger they're gonna get, and then if you have a light load, they're just gonna engage lightly for you, and they're also going to act as a return device to minimize the rattle and bottoming out that you get. Back behind these arms, we do have fitted rubber bushings.

You can see up here, those are going to allow the control arms to be fully engaged and ensure the springs are in use at all times, so it's gonna kinda force those arms back up, so that the rubber springs can engage. These are a heavy-duty steel construction, so they're gonna be very, very durable for you. You can see they have a rust resistant powder coat finish on them, so that it's gonna hold up well for you. All the the rubber components are very tough, long-lasting rubber, so there's gonna be virtually no maintenance involved with this setup, it's just going to install that first time. Once you get everything put together, it's gonna give you that consistent, smooth ride, taking away a lot of that jostling and wear on your trailer.

So to get these installed, it is gonna be a bolt-on installation, the mounting hardware is not included, you will need six 5/8 inch UNF bolts, lock nuts, and 5/8 inch washers to mount these onto your trailer. It is gonna require some drilling and welding, you'll need to weld the actual seats onto your axles. Another component that is not included, but will be required is going to be a two inch by four inch hollow steel crossmember that goes the span of your trailer width. You do wanna make sure that it has a 3/16 inch wall thickness, that can typically be picked up at your local hardware store in a welding section or something like that. So that's just gonna give you that extra reinforcement in between these. And so, like I said, this is gonna be a really nice system to smooth out your ride, make it a lot more comfortable for you and reduce the wear on your trailer. That's gonna complete our look for today. Again, I'm Michael with etrailer.com, thanks for watching..


Customer Reviews

Timbren Silent Ride Suspension for Tandem Axle Trailers w/ 3" Round Axles - 7,700 lbs - T89MR

Average Customer Rating:  4.7 out of 5 stars   (58 Customer Reviews)

Trailer suspension system replaces your leaf spring suspension to provide a stable ride. Walking beams keep weight distributed evenly between both axles. Rubber springs absorb road shock. Axle spread is ideal for small tires.

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:

Easy to install product is working well for my application



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:

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:

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:

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:

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:

Perfect replacement for my car carrier axles



by:

A more stable ride Wolf-Pup Forrester RV trailer.



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 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:

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:

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:

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:

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:

Probably the best upgrade I will ever do to our Roof Top Tent trailer. Rides absolutely amazing. I’ll never run leaf springs again.



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:

Placed these on my 24’ center console trailer. There was an immediate improvement in ride quality. I make several long hauls each year and want suspension parts I can count on. I believe this will be my first suspension that is reliable!



by:

Photo of installed product.



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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Info for this part was:

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Edited by:
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Employee Jameson C
Expert Research:
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