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Timbren Silent Ride Suspension for Single Axle Trailers w/ 3" Round Axles - 7,000 lbs
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Timbren

Timbren Silent Ride Suspension for Single Axle Trailers w/ 3" Round Axles - 7,000 lbs

Part Number: TSR7KS02
$764.14
Retail:$849.04
You Save: $84.90
Trailer Suspension Parts
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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Rubberized, pivoting trailer suspension system replaces your leaf spring suspension to provide a smooth ride. Pivoting arms help keep your trailer level on rough ground. Fitted rubber springs absorb road shock and eliminate bounce and rattle. Great Prices for the best trailer suspension parts from Timbren. Timbren Silent Ride Suspension for Single Axle Trailers w/ 3" Round Axles - 7,000 lbs part number TSR7KS02 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Trailer Suspension Parts - TSR7KS02

Highlights

  • 7,000-lb Capacity: Supports heavy single-axle trailers while keeping handling steady.
  • Rubber Springs Absorb Shock: Smooths bumps and protects cargo from bounce and rattle.
  • Pivoting Arms Stay Level: Keeps tires planted for stability on rough or uneven ground.
  • Progressive-Rate Aeon Springs: Stiffen as load increases for consistent ride quality.
  • Virtually Maintenance-Free: Rubber springs and bushings need no regular servicing.
  • Bolt- or Weld-On Install: Mounts to a 2" × 2" crossmember using 5/8" Grade-5 bolts (not included).

Features to know about

Smooth Ride on Rough Roads: Rubber Springs Absorb Shock and Eliminate Bounce

Leaf spring setups can make a trailer bounce and rattle, especially when empty or lightly loaded. The Timbren Silent Ride suspension replaces that with Aeon progressive-rate rubber springs that absorb road shock and keep the trailer stable. The rubber springs compress and stiffen under heavier loads for consistent support, so you get a quiet, controlled ride no matter the weight.

Stable Handling and Level Tracking: Pivoting Arms Keep Tires on the Ground

Uneven terrain can make one side of your trailer sag or lift a tire off the road. The Silent Ride’s pivoting arms let each side move independently to keep all tires planted. That helps the trailer stay level through dips, turns, and rough ground, reducing body roll and keeping cargo secure.

Built to Last: Heavy-Duty Steel with Rust-Resistant Finish

Road grime and corrosion can ruin suspension parts over time. Each Silent Ride unit is built from heavy-duty steel and finished with a durable powder coat that resists rust. The rubber components are equally tough, with a 10-year warranty on the rubber bushings and springs for long-term reliability.

Simple Upgrade from Leaf Springs: Bolt- or Weld-On Installation for 3" Round Axles

Switching from leaf springs to a modern suspension doesn’t have to be complicated. This system is designed for single-axle trailers with 3" diameter axles and a 7,000-lb capacity. It mounts to a 2" x 2" hollow steel crossmember with 1/4" wall thickness (not included) and installs with Grade-5, 5/8" bolts if you choose the bolt-on method. Once in place, it’s virtually maintenance-free and ready for years of smooth towing.

Specs

Application

  • Application: single-axle trailers with 3" diameter axle

Weight and Capacity

  • Weight capacity: 7,000 lbs

Quantity

  • Quantity: 2 suspension units

Warranty

  • General warranty: 5-Year limited warranty
  • Rubber bushings and rubber springs warranty: 10-Year

Installation and Specifications

Technical diagram of Timbren Silent Ride Suspension system for single axle trailers with 3-inch round axle, showing both suspension arms, rubber springs, and mounting points for installation reference.


SR7KS02 Timbren Silent Ride Trailer Suspension - 3" Single Axle - 7K

Installation Details TSR7KS02 Installation instructions



Video of Timbren Silent Ride Suspension for Single Axle Trailers w/ 3" Round Axles - 7,000 lbs
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Timbren Silent Ride Suspension Review

Today we're going to be taking a look at the Timbren line of silent ride suspension systems. Now, these systems have been designed to work for trailers with capacities anywhere from 2000 pounds all the way up to 14,000.Now, the silent ride system from Timbren is really one of the best upgrades you can make to a trailer suspension. This is going to give you excellent handling out of your trailer. You're not going to have so much of the side-to-side. You're also going to feel it less as you haul it.As our suspension system works here up and down, whether you're got your trailer loaded to capacity or empty, you will hear any feel a noticeable difference in the ride quality on your trailer. Now, I really appreciate that, because we haul a lot of trailers around here, and it's just aggravating, always hearing that noise, and always hearing that rattle behind you.

This has almost completely eliminated it on this trailer.This is also going to be very important when it comes to car haulers. You've got cars in here, sometimes race cars, expensive cars. You don't want them being beat up, your tools that are in there. You don't want them shaking around a whole lot. This is also going to work out really well for our camper trailers.

We've got dishes, we've got stuff in there that's important. We've got our tools stored in there. We just don't want them getting beat up.Installing a suspension system like this is really going to smooth all of that out for you.Now, the setup we have here today is the single axle configuration. You can see, we've got or 2x2 cross tube here, our axle here. This is also going to be available in a tandem axle configuration.

This body here becomes a little bit longer, we're going to have one of these off the back, we're going to have one of them off the front. Basically, you're going to have the same cross tube, but it's going to be 2x4, and it sits between them. Right up flush against here and the other side. All in all, it's going to give us a really good solution.Basically, the way this system works, we're going to mount the upper bracket to our trailer. We've got our lower arm here, that's free floating.

We've got an Aeon rubber spring here, and also here. This one is constantly trying to expand out slightly, and it's applying upward pressure on our arm. This one's applying downward pressure on our arm. As we hit a bump, of course, this is going to go up, as this goes up, this is going to expand. This one wants to pull it back, wants it get it back to its normal configuration. This one pushing out wants to get it to its normal configuration.If we think about a regular leaf spring style suspension, it's just sitting there in the middle. It's just going to wiggle when we hit bumps and stuff like that. Where, this is fighting to remain nice and steady and calm, over all those different bumps.Now, let's take a look at our conventional leaf spring suspension, versus our Timbren suspension. As you can see, there's a lot less movement, the trailer doesn't bounce up nearly as much, so it's generating a lot less noise. Overall, it's going to offer a much smoother and more controlled ride.Now, let's take a look at just the silent ride system, as we go through our test course. You can see as we're hitting the different bumps, you're not seeing as much movement as what we're used to with a conventional suspension system. It recovers very quickly. Now as we're just doing some maneuvering around our parking lot, you can see there's no trailer roll side to side. With them working independently, it helps kept everything level.These are also going to offer a variable spring rate. If we load our trailer with a light load, these are going to be compressed slightly, and that's all the effort they're going to have to put out, so it's not going to stiffen up our ride tremendously. As our load gets heavier and heavier, these compress more and more, they're going to get stiffer and stiffer, so they're almost going to adjust for the load that you put on, to maximize your ride quality.Now, the brackets we have here, of course, these are going to be heavy duty steel construction. They've got the black finish on it, help resist any kind of corrosion or issues like that for a long time to come.Now, on your tandem setup, there's a huge advantage in how the Timbren system equalizes the weight equally across your axles. With this single setup, we're going to have our upper bracket, we're going to have our base arm. With the tandem setup, we're still going to have our upper bracket, we're still going to have our base arm, but there's a walking leg that goes in between those. It's going to have a single pivot point right here in the middle, so as the tire gets pushed up in the back, it forces that front tire down. As the tire in the front gets pushed up, it forces that rear tire town. It maintains equal load across both axles at all times. That's something we don't see in leaf spring suspensions, even with equalizers installed. They just don't transfer that properly.Now, one thing to keep in mind when installing this system is that we need to reuse your existing axle. Where it meets the silent ride here, they provide us with this axle seat, so essentially, you're going to remove your old axle, you're going to grind those spring seats off of it to get it nice and flat. Get everything pre-assembled, place it up here, and you'll lay that weld across the back.Now, once we've decided where we're going to be positioning the silent ride, I've marked my holes in center punch. You can see here. You can leave the silent ride clamped into position, as if when you we're setting it up, and use those holes as the guide, if you want to do it that way, that's going to be completely up to you. What we need to wind up with a 5/8th inch diameter hole, we're going to use a step bit. We're going to 3/16ths, go up to a 3/8th, just slowly work up to that 5/8th. Generally, that's the easiest way to drill through this steel.We're going to get both our holes drilled out on this side, and do the same thing on the other side. Now that we got our holes drilled, we're going to take our hardware, get it put in place, we're using 5/8th diameter bolts, you want to use at least grade five, these happen to be grade eight. On to backside, we're going to put a flat washer on. Put a lock washer on. Also, our nut. Now we can snug out hardware down, ours takes a 15/16th, as long as yours is standard 5/8th, it should be the same. All right, now we'll torque those down to the specifications, which are listed in the instructions.Now, we've got our axle up in position. We've got our perches, our spring perches here on the bottom. Now, we had our welder take care of this, we had it all mocked up. We had him pre-weld this, although in your application, you're just going to have to out a bead across this side, and right up here. In the instructions, they tell you just to weld this up after you've got everything bolted up, so you might want to do it that way. It's going to be up to you.We just want to make sure we get our axle centered. You measure from your brake flange here, out to here, or to the center of your trailer, whatever you want to do. You want to make sure that's equal on both sides. Now, we've brought our U bolts down and around. You can see here, each one of those gets a washer, and a nut, and we're going to use a crisscross pattern, get those snugged down, and then we're going to torque them per the instructions.Now, here we've installed our crossmember. This needs to be a 2x2 inch squared piece of tubing. You can see it's 3/16th of an inch thickness. We want it 2x2, 3/16th inch wall. We've got our holes, we got one here, one here that we need to drill. Now, those are going to go in, all the way through, and then they need to come out that upper bracket. I'm going to mark my bottom here. Just using a center punch.Now, for our upper hole location here, it's going to be really tough to get anything in there to mark it. I'm just going to use a right angle pick. I'm going to go all the way around that elongated hole. Then we can just mark the center of that.All right, now we're ready to drill them out. These need to go to a half inch in diameter. We're going to use this step bit process, just like we did on our trailer. Gradually enlarging it.Then once we have the four drilled out here on this side, we're going to flip it over, and use our marks to drill our holes on this side.Now we've got our crossmember put back in place, we're just lining up those holes. We want to take our bolt. We want to pass it up through. On the top, we're going to be using a nylon locknut. Now, depending on your application, this might be a pretty tight fit in here. You could also use a flat washer, a lock washer and a nut, if you have space. It seems like for us, this nylon locknut's really the best solution. We're going to put one in each hole, so two on this side. We've already got the two on the other side. Now we'll get them tightened down.Most of your half inch bolts, you're going to need a 19mm or 3/4, unless you're using something odd sized. Now, we'll want to get these torqued down. Now, once we've got all that torqued down to specifications, we've gone through everything, make sure everything's nice and secure, it's time to just basically rebuild our axles.That's going to complete our look at the Timbren line of silent ride suspension systems.

Ratings & Reviews

4.8

27 reviews
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Rubberized, pivoting trailer suspension system replaces your leaf spring suspension to provide a smooth ride. Pivoting arms help keep your trailer level on rough ground. Fitted rubber springs absorb road shock and eliminate bounce and rattle.

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Just did a test fit but like everything about the product! Construction quality ease of assembly all first rate!



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We like the product



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Perfect replacement for my car carrier axles



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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.



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looks great solves spring hanging easier to install personal flat bed trailer



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A more stable ride Wolf-Pup Forrester RV trailer.



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Installation went well. Not yet used for a heavy load. Switched from leaf spring suspension and empty doesn't seem to bounce any less than prior to the switch. Moderate load does show some improvement.



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Had some problems with missing parts, but customer service was on the ball. got rest of parts 4 days later.. So to say customer was very helpful is an understatement. Installment was easy. Instructions were helpful. etrailer has my vote....



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I like the product. But the instructions aren’t the best one part of the instructions tell you to bolt the cross member on then when you look at the picture they tell you to weld it. If you look at your videos they showed a bracket on the front of the hanger that you can bolt it on. To weld it on you have to be careful not to burn the rubber part of the suspension that is right where they want you to weld it.



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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!



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



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We used this on an aluminum utility trailer that originally had a leaf spring setup. Easy to install, we just flipped the trailer upside down...
Turned a so-so trailer into an awesome one. Thanks!



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



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It is quiet, but… Since they are both mounted to a solid axle it doesn’t provide any sway from side to side. It is very bouncy on uneven side to side bumps and doesn’t track well. I’m sure this works well in a spindle configuration when spindles/wheels are independent. I ordered new leaf springs to remove them. Quite disappointed.



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Very nice product



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Worth the money! Super nice ride loaded and empty.



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I’m really torn about these. On the one hand, they are silent and tow really really well. Until you hit a bump. So far, our microwave broke, the hood on our range came loose, and the Aeon (sp?) dampeners should ideally be taller to prevent the axle from hitting the frame when a pothole is hit. I have contacted the manufacturer and they have been super supportive and sent me 5k springs, but it didn’t fix the bottoming out issue. I am at a loss as to what to do next. So am I happy? Not really. Did it solve my issue? Kinda. What would make it perfect is a taller spring or some way to adjust the articulating arms so they are so closed (like scissors) and give the axle a reason to hit the frame. That jarring caused the microwave to break and the hood to come loose. We didn’t have these issues with the leaf springs.


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See what our Experts say about this Timbren Trailer Suspension Parts

  • Improving the Ride Quality on a Triple Axle Trailer
    We actually reached out to Silent Ride about this and while they don't offer an all-in-one kit for triple axle setups, they did confirm that you can use three of the Single Axle kits like part # TSR7KS02 and it will work great. This particular set is designed for 7K axles but they are offered in other capacities as well. I've attached a link to our selection along with a short video you can check out.
    view full answer...
  • Could Timbren Axle Less Kit Be Installed on Truck Bed Trailer Frame
    The Timbren Silent Ride # TSR7KS02 that you referenced was intended for attaching to a trailer frame, but could also attach to a truck frame too assuming it's a standard boxed frame. I attached a picture that shows how it typically bolts to a frame and shows relevant dimensions that you should check out and compare. You really don't want to install suspension enhancement like the # TSS-107-40 you referenced on suspension that is showing signs or being worn out like yours. These kits should...
    view full answer...
    Image 1 for

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Info for this part was:

Employee Lindsey S
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Employee Jameson C
Expert Research:
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Employee Kathleen M
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