1. Trailer Leaf Spring Suspension
  2. Timbren
  3. Axle Replacement System
  4. Axles
  5. Universal Fit
  6. 3500 lbs
Timbren Axle-Less Trailer Suspension System - Straight Spindle Only - 3,500 lbs

Timbren Axle-Less Trailer Suspension System - Straight Spindle Only - 3,500 lbs

Item # ASR3500S05
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Our Price: $633.80
Trailer Leaf Spring Suspension
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Timbren Axle Replacement System Trailer Leaf Spring Suspension - ASR3500S05
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The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle, allowing for maximum ground clearance and a low deck height. Suspension units replace your existing axle and operate independently. Fits any frame width. Lowest Prices for the best trailer leaf spring suspension from Timbren. Timbren Axle-Less Trailer Suspension System - Straight Spindle Only - 3,500 lbs part number ASR3500S05 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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Timbren Trailer Leaf Spring Suspension - ASR3500S05

  • Axle Replacement System
  • Axles
  • Universal Fit
  • 3500 lbs
  • Spindles Only
  • Timbren

The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle, allowing for maximum ground clearance and a low deck height. Suspension units replace your existing axle and operate independently. Fits any frame width.


Features:

  • Suspension system provides a safe, smooth, quiet ride for your trailer
    • 2 Separate units replace your existing axle
  • AEON progressive-rate main springs absorb road shock and support trailer's load
    • Deliver a smooth, stable ride, regardless of load size
    • Compress and become stiffer as load increases, boosting spring strength
  • Rebound springs act as return devices to minimize rattle and bottoming out
    • Create constant pressure on the arm, so the suspension is never completely relaxed
  • 2 Independent units can eliminate the need for a thru axle
    • Increase ground clearance
    • Lower deck height for easier loading and unloading
    • Reduce roll during cornering
    • Fit any trailer width
  • Built-in camber and toe-in help your trailer to track straight, reducing wear on the tires
  • Straight, EZ Lube spindles accept trailer hubs (sold separately)
    • EZ Lube feature makes it easy to grease bearings without removing the hub
    • Spindles can be removed from units for simple replacement if damaged
  • Heavy-duty steel construction with black powder coat finish resists wear and corrosion
  • Easy to install and align
    • Bolt or weld to your trailer's frame


Specs:

  • Fits: 1-axle and 2-axle trailers that use regular tires
    • Not recommended for triple-axle applications
  • Weight capacity: 3,500 lbs
  • Quantity: 2 suspension units without hubs
    • Works with Dexter 1,750-lb hubs (84545UC1-EZ)
  • Spindle/Hub compatibility:
    • Bearings: L68149 inner, L44649 outer
    • Races: L68111 inner, L44610 outer
    • Seal: 10-19
  • 3-Year limited warranty


Note: The Timbren Axle-Less suspension system may require additional support on your trailer. If your trailer does not have a crossmember above the spot where you want to install the Timbren system, you may need to reinforce the frame. You can accomplish this three ways. First, you can retrofit the trailer with a crossmember. Second, you can build out the trailer frame. Third, you can use standard, 2-inch steel tubing to connect the 2 Timbren suspensions together using the built-in square hole on each unit.


Ground Clearance

Ride on rubber with Timbren's Axle-Less trailer suspension system. This one-of-a-kind suspension consists of two separate units, each containing rugged steel arms and two strong, hollow rubber springs. Overall, the system safely and effectively absorbs road shock, minimizes trailer bounce and rattle - regardless of load size - and helps to protect your trailer's components and cargo. Built-in camber and toe-in keep your trailer tracking straight to minimize tire wear. Integrated hangers attach to your trailer's frame. And 2-inch holes make it easy to reinforce your trailer's frame by adding standard, 2-inch-square steel tubing (if needed).


The Axle-Less independent suspension system replaces your trailer's existing leaf spring suspension and can eliminate the need for an axle. The independent action of the suspension reduces roll when your trailer is cornering and allows you to maximize ground clearance and minimize deck height. Your trailer can have the same side-to-side clearance as your tow vehicle. And the low deck height makes it easy to load cargo from either the rear or the side.


Because you're riding on rubber, your trailer will ride smoothly and comfortably, whether you're navigating rocky terrain or highway asphalt.


Timbren Axle-Less Suspension Parts

Components

  1. The AEON progressive-rate main spring supports the weight of your trailer and cargo and easily absorbs road shock. It is constructed of heavy-duty, hollow rubber.
  2. The rebound spring minimizes trailer bounce, rattle and bottoming out. It keeps the suspension under constant tension and ensures that the main spring compresses and expands in a controlled fashion. And it delivers a smooth, stable ride - regardless of how much cargo is on the trailer.
  3. The trailing arm and integrated hanger attach the suspension to the side and bottom of the trailer frame.
  4. The control arm carries the spindle and the hub. It pivots on strong, long-lasting urethane bushings that never require lubrication.
  5. The EZ lube spindle is simple to grease. If damaged, it can be removed and replaced, saving you both time and money.
  6. The hub is not included with this model.
  7. The built-in square hole accepts standard 2-inch tubing. If there is no crossmember above the suspension, you can easily add support to your trailer's frame by inserting 2-inch steel tubing through the hole on each suspension unit and then bolting the tubing into place.

Timbren Axle-Less Suspension versus Leaf Springs

Leaf Spring Example

The Axle-Less suspension's progressive spring is a definitive upgrade over leaf springs. Although leaf springs deliver a stable ride when supporting a load, a trailer with leaf springs will 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. The AEON progressive-rate springs of the Axle-Less suspension always deliver the same reliable performance, no matter the load size. As more weight is added to the trailer, the springs compress and become stiffer, offering more support for heavy loads. And because they rebound more slowly than leaf springs, the AEON springs do a better job of absorbing road shock, thereby keeping your trailer from bouncing and rattling when you're carrying a light load. So with this versatile system you will enjoy a smooth ride whether you're towing an empty trailer or a hefty load.


Unlike leaf springs, Timbren's Axle-Less suspension units operate independently of one another. Each spring activates only when needed. This reduces roll and delivers top-notch performance, even when you're hauling off-center loads. 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 your trailer with the Axle-Less 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.


Timbren Axle-Less Suspension versus Torsion Axles

Torsion Axle Example

Timbren's Axle-Less trailer suspension system is a great alternative to torsion axles. While both systems allow either side of the trailer's suspension to operate independently, only Axle-Less suspensions are actually separate units. Torsion axles still require a bar that spans the bottom of your trailer, whereas Timbren's system can eliminate the need for a thru axle - giving you the same amount of ground clearance from the front of your trailer to the rear. It also allows Axle-Less suspensions to fit any trailer width - unlike torsion axles, which have to be fitted to an exact frame width.


Axle-Less suspensions operate in a smoother, less stressful manner than torsion axles. Torsion axles use a twisting motion, where the bar inside the axle tube rolls against rubber cords or a rubber wall to create compression and resistance. The up-and-down motion of the main spring and the side-to-side motion of the rebound spring in Timbren's Axle-Less suspension work together to provide smooth, consistent compression - with no twisting - that results in a better ride and less stress on the suspension's components.


Installing the Timbren Axle-Less Suspension

Whether you are building a trailer or retrofitting your existing trailer with the Axle-Less system, you must make certain that the trailer's frame is both perfectly square and sturdy enough to support a heavy load without the aid of a thru axle.


Install Option 1

There are three ways to install the Axle-Less suspension. The easiest method, which is recommended if you are replacing axles on your trailer, is to install a piece of 2-inch-square tubing (sold separately - available at most weld shops) through the integrated hole in the Axle-Less suspension. Then all you need to do is bolt the suspension to the side of the trailer's frame with three bolts (not included).


Install Option 2

The second option for installation is to fabricate an inboard extension plate that attaches the trailer's frame to the Axle-Less suspension.


Install Option 3

The third method of installation is to bolt the Axle-Less suspension's hanger to the trailer's frame and to an existing crossmember that is in the area where you want to install the suspension.


With both the second and third options, you must use three bolts to attach the suspension to the side of the frame. And you also have to use two or three bolts to attach the suspension to the bottom of the frame extension, or crossmember. Both the second and third methods of installation will eliminate the need for a thru axle and provide the most clearance.


Measuring Diagram

Timbren's Axle-Less suspension units should be installed directly across from one another. Before mounting the units, measure back from the coupler and mark the frame to make sure that the two distance measurements (A and B) are within 1/8 inch of each other. Then you can drill holes through the frame and attach the hangers with Grade-5, half-inch bolts (not included).


Dimensions of the Timbren Axle-Less Suspension

Dimensions 1

Dimensions 2

Dimensions 3

Dimensions 4



ASR3500S05 Axleless Trailer Suspension System by Timbren - Without Hubs - Regular Tires - 3500 lbs

Installation Details ASR3500S05 Installation instructionsAlternate Instructions ASR3500S05 Installation instructions




Customer Reviews

Timbren Axle-Less Trailer Suspension System - Straight Spindle Only - 3,500 lbs - ASR3500S05

Average Customer Rating:  4.7 out of 5 stars   (186 Customer Reviews)

The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle, allowing for maximum ground clearance and a low deck height. Suspension units replace your existing axle and operate independently. Fits any frame width.

- ASR3500S05
by:

Timbren saved our RV road trip! The leafs on the axle on our 2018 Jayco TT came apart while driving in Maryland. We tried going to the manufacturer, but they were useless. Going to a RV mechanic meant being grounded for at least 2 months. Then we found Timbren. With the help of Timbren's excellent staff we purchased axle-less system through etrailer, who made sure we got as quick as possible. It came ahead of schedule, my husband installed the Timbren system and we were back on the road! The axle-less system is better than the original manufacturers. If you plan on taking your RV or TT farther than 100 miles GET THIS INSTALLED and get it through etrailer.



- ASR3500S05
by:

Trailer suspension and disk brake performance is outstanding big big difference over leaf spring and electric drum brakes. Installation required modifications to the frame to monut the timbren suspension



- ASR3500S05
by:

We don't use our trailer often but when we do, it performs flawlessly. We are so grateful for the function axles. It gives us the desired cushioned ride



- ASR3500S05
by:

Great product.. My company manufactures trailers with our own axle-less suspension, however we have abandoned our own design in favor of the Timbren system. It is far superior and more cost effective to use the Timbren. Also, the Timbren can be adjusted for camber, a nice feature on a trailer. Just be sure to order the correct spindle for your application. Exchanging the spindles with etrailer became a nightmare. I eventually kept the original spindles and bought new ones from Timbren directly.



- ASR3500S05
by:

I use these axles on off road trailer built to tackle the toughest 4x4 trails and the have held up to all the beating our customers can dish out



- ASR3500S05
by:

Thank u for your business!



- ASR3500S05
by:

Easy to install. Big difference in trailer's suspension and handling. Highly recommended.



- ASR3500S05
by:

Product was great easy to install, haven’t towed with it yet as I’m sill working on the repairs!



- ASR3500S05
by:



- A20RS545
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


I used these axles in a different way than most would. I needed a trailer that was small, could handle tight switch-backs, carry 600 lbs and be light. I had this idea and as a retired design engineer I saw a great possibility in this axle. I have made four of these trailers now, one as a camp trailer, 2 for trail work for State Parks and one as a utility trailer.


Comments
Really cool work!
-- Etrailer Expert Sierra K - 07/07/2021


- ASR3500S06
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


The trailer rides great down the road and no more worries about saltwater and rusty leaf springs. Not a cheap option but I’m very happy with the setup. When installing, just be sure to measure accurately and have sharp drill bits. A drill press type of guide also helps ensure correct drilling angles. The first picture is of a mounting gusset a local welding shop made. One is needed for each side and necessary to provide needed mounting strength-at least on my trailer frame. Pics 2 and 3 show the mounted suspension on one side of the trailer. Pic 4 shows the suspension on one side of the trailer with the axle attached and a separately purchased disc brake assembly mounted on it. Finally, pic 5 shows a 2” box channel between both suspension assemblies. Independent suspensions would have been nice, but I wanted to ensure trailer rigidity was maintained. So, after one year, so far, so good. It’s all smooth sailing down the highway.



- ASR3500S06
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


A must have suspension if you're building an off-road trailer!


Comments
Its been a year and this suspension is still doing great!
David R - 09/27/2021


- TASR5200S03
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


Very exicited about these axels, I have been eyeing these for over a year. (Excellent service from etrailer, they had my parts to me in 1 day from the time of placing the order.) These axles seem to be well made and fit nicely with the Dexter hub and drum assembly and the 12" electric brake kit. I installed this all on a M1101/M1102 trailer frame after removing the factory axel assembly. I have not ran these on the road or off as of yet but will give another review at that time. The fit and finish are great and the packaging was good, a little banged up from shipping (missing 1 washer)



- TASR5200S03
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


This is as close to a bulletproof suspension as they come. We use this suspension on all of our VORSHEER XOC trailers. They have performed flawlessly as an off-road suspension.



- A35RS545
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


I rebuilt a 4 x 8 trailer using the Timbren Axle-Less Trailer Leaf Spring Suspension and it works great. I would recommend it to others.


Comments
Working out just fine.
David J - 09/25/2020


- ASR3500S06
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


Best suspension you can get for off-road trailers. We use this suspension on all of our VORSHEER XER trailers.



- ASR1200S04
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


The order came in on time and the customer service at etrailer.com (Ashley) and Sean from Tmbren was outstanding. They both were very helpful in my choosing the right product for my needs. The axle less suspension's performance is absolutely superb. It vastly improves ride quality. I am using it on a teardrop camper that often goes on gravel roads and the raddling sound from the leaf axles was horrible. A couple of points to consider before you settle on the axle less suspension: keep in mind that you will lose some hight of the trailer. While you will gain clearance from the lack of the axle, the suspension will make the trailer sit lower than before.i had to lower my hitch by an inch to maintain the trailer leveled. Also it does appear to compress at higher rate than the leaf springs, which makes it softer but easier to reach it's limit. Overall this product is absolutely a must if you are looking to improve the safety and the quality of your towing.



- A12WS545
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


Purchased 2 sets of the Timbren 1200 Axle-less systems for upgrading the suspension on an older 30' ft glider trailer. Single axle with small (13") tires made towing tough due to porpoising, dragging on drive entrances do to poor flotation; also German made and metric, no repair parts. GVW 2000 lbs equated to bouncy ride. Dual sets now allow the trailer to ride over bumps and sharp inclines easily, smoothly, little bounce on country roads; porpoising is history. My glider now rides securely, safely, quietly. Install time 4 1/2 hours (includes head-scratching). Results are outstanding, units are totally solid. Recommend the square tube interconnect, easy and quick - trailer frame was on the light side, so a precautionary fix. Clean look underneath. Ordered 5 wheels w/tires, very nice. Helpful neighbor so impressed he ordered a HD single set for his new DIY snowmobile trailer. Customer satisfaction 100%, from phone order, online support, product information, immediate shipping, install instructions, followup... HIGHLY RECOMMENDED!


Comments
I have just a little more to add regarding my purchase: Two sets, of the Timbren Axle-less assemblies, 1200 lb, and 5 wheels. I placed the order via phone, and whoever was on-call that day provided great answers and recommendations regarding the units, wheels and tires. At 31 feet, the trailer originally exhibited amplified porpoising on any bumps or dips in the road. Also bouncing and occasional sideways tipping due to the single axle. It made a lot of noise on my mountain community washboards. I speculated that the Timbren units would solve most, if not all of these problems and they have. Installation on my older 31 ft European ie, metric and no longer manufactured glider trailer was a mere 4.5 hours from removal of the old single axle to setting the trailer back down on its new assemblies. Instructions are complete, precise, useful and helpful. Appreciated. Little to comment on as installation was all straight-forward. I would like to describe the maiden voyage to the airport and back, but there is nothing to tell, other than it towed beautifully proper alignment instructions, and all that I viewed from the rear view mirror looked like a magic carpet ride. It rides over washboards and pot holes like a marathon hurdler, the 4-wheel independent suspension is great. Packaging: the shipping boxes all arrived in good condition, but the cardboard component boxes inside them... not so much. Most were ripped and open due to heavy components lightly surrounded with brown packing paper, just token amounts. Parts: all was accounted for minus a pair of spindle axle washers for one set, easily replaced at the local farm and ranch supply. No squawk, just an fyi. I am very pleased with your product and support, and was happy to leave a 5-star review with photos. The upgraded suspension was also a topic this past weekend at the glider port by those who regularly trailer their ships to various soaring events, some as far as a thousand miles away. My compliments to eTrailers, hope you can use my info,
-- comment by: Kelly F - 11/28/2018



- A4WS440
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


Pleased with ETRAILER, will order here again. Not as happy with the torsion axle setup. 2 inch square opening for tying both axles together with your own 2" square tubing are not shaped to match 2x2x1/8 tubing. Grinding and welding of tubing required to make it fit. Also found the overslung stub axle left the end of the pivot arm without much ground clearance though the unit was intended and spec'd for atv tire off road use. A pivot arm with mounting pads top and bottom would be better and allow the user to choose high or low clearance use. I found the units were perfectly suited to offroad use once I fabricated new mounting pads and welded them to the bottom of the arms.


Comments
After a year of off road use, I couldnt be happier. My trailer rides smooth loaded or unloaded. No of that bunny hopp with leaf springs or rigid mount axles. The small rebound control snubber works perfectly! I modified my components for high clearance but the concept is sound, they work well. Great job Timbren!
Doug F - 06/22/2017



- ASR3500S06
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


Came late. Not e-trailers fault. Covid-19 and China's fault. They bolted right up on my trailer frame. Really like the way they make my tear drip trailer handle. No sway, no bouncing all over like it use to. Will always put these under any trailer I build from now on. E-trailer keep up the great work.



- ASR1200S02
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


It was a very straight forward install, it goes pretty smooth if you take your time, double check your layout, Make sure of your bolt sizes (length) before going to the store. If you plan the project, don’t rush, its not a race, it goes really good. I spent about 10 hours spread over two days by myself. I am just waiting for tires to arrive. All that said very happy with the product and etrailer. Will recommend for any axel/suspension replacement.



- ASR1THDS01
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


After a great deal of research, I ultimately chose the Timbren long arm kit to replace the torsion axle under my teardrop trailer. My initial impression is that there is simply no comparison between the two. It now rides better, pulls better and handles better than I could have imagined. The Timbren axle system is incredibly well built and is much more confidence-inspiring. While the spring rate closely matches my trailer weight, the components are much more rugged and robust. The spindles, bearings and brakes are rated at double the capacity of my old axle which gives me great peace of mind. I pull my trailer, both on and off road, anywhere it will fit and the long travel and heavier components are a game-changer for my travels. Installation, while requiring a bit of forethought, was otherwise straightforward and methodical. Documentation available from etrailer and Timbren, is second to none. Instructions were clear and concise with drawings and detail taking the major guesswork out of the equation. Even though, due to the odd frame design of my trailer that required a bit of work to adapt, I ended up making some frame stiffeners, the adaptation was as simple as it could possibly be. I've ordered from etrailer in the past and they were 100% accurate on this order as well. I ordered the Timbren kit without backing plates and hubs due to the requirements of my trailer and etrailer suggested, explained availability and supplied all of the components I needed. They truly a stress-less bunch of folks with an extraordinary website. I'll no doubt turn to them again...



- A35RS545E
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


Best money we ever spent! Easy to install and the towing of the trailer has changed drastically for the better in every way. Thanks etrailer for selling a tremendously great product.



- ASR3500S06
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


We use Timbren's ASR3500S06 on all of our XER trailers. We couldn't be happier. It is a well built suspension.



- A12WS545
by:

Review from a similar Axle-Less Suspension in Trailer Leaf Spring Suspension


Good product and easy to install on my new build of a off road trailer for my side by side. Thanks


Comments
This has been a great product and works great and was easy to install
John V - 04/14/2020

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Ask the Experts about this Timbren Trailer Leaf Spring Suspension

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    We do not sell Bendron Tito's axles, and I was not able to find any information about them online. Are you sure that is the correct name for the axle? If you can send me the specs of your axle I would be happy to see if we have another brand of axle that would work for you.
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    The 3500 lb Timbren Axle-Less suspension kit # ASR3500S05 would be a good choice. The spindles provided with the # ASR3500S05 would indeed be compatible with the bearing set provided with the # AKIHUB-550-35-K idler hub, but since the Timbren Axle-Less suspension you've chosen features E-Z lube spindles, you'd want to go with # AKIHUB-550-35-EZ-K which provides the E-Z lube compatible dust caps with removable plugs so you can easily access the grease zerk without needing to remove the entire...
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  • Can 3,700 lb Torsion Axles be Upgraded to Smoother Setup
    For torsion axles there isn't a shock kit to smooth out the ride quality. Best option we have would be to go to a Timbren Axle Less kit like the part # ASR3500S05 which provides a smoother suspension setup than what you have now. This is similar to a torsion setup but offers better way of providing suspension support.
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    I would love to help you upgrade your suspension components! I am guessing that you have 3,500 lb axles on your trailer but if you could verify that it would help me to make sure that I recommend the correct parts for you. Also, are you looking to add brakes to both axles or just keep them on one pair? You would get more braking power and less wear with brakes on all of the axles but if you only want them on one then that will also play into the parts.
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  • Upgrading to 3,500 Axle on Overloaded Boat Trailer
    It sounds like you are already aware of this but overloading your trailer has most likely bent the spindles and is now causing the trailer tires to wear faster on the inside edge which is subsequently leading to blow outs. The fix for this is as you mentioned to upgrade to a higher capacity axle. If this is the fix you choose to partake then you will want to change out the leaf springs as well. The reason for this is because leaf springs will more or less be rated for the axle capacity....
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    I do have options for you but we would not have a direct replacement for your 3,500 Lb Lippert Axle. Instead, we have the Timbren Axle-Less Trailer Suspension System part # ASR3500S05 or part # ASR3500S06 which as the title states is an axle-less style that replaces the leaf springs as well with rubber bumpers that work to support the trailers weight and reduce road shock better than a standard steel leaf spring. The Timbren Axle-Less Trailer Suspension System is also very easy to install...
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  • Can Spindle On Timbren Axle-Less Trailer Suspension System Be Reversed
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    I may have another option for you, but unfortunately we do not carry any torsion axles at this time. The option I recommend is replacing the torsion axles on your 1989 Avion 34X with the Timbren Axle-less Suspension System. These systems bolt directly to the frame of your trailer and will not require you to measure the exact length of the axle. The Timbren systems use a progressive rate AEON mainspring that is built in to absorb road shock, and give you a smooth ride. If your axles...
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  • What Height is Recommended When Setting the Fender Height Above the Trailer Tire?
    The Timbren Axle-Less Trailer Suspension System - Straight Spindle Only - 3,500 lbs # ASR3500S05 has a deflection of 1-3/4 inches. I've attached a photo to assist. We recommend 4 inches above the tire in most cases for fender mounting to account for deflection and any road debris to not damage the tire or fender. That is based on a leaf spring system that will have slightly more deflection than the Timbren system, but it is a good reference and what I would use.
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  • Suspension Upgrade for Torsion Axles
    I do have an option for you but the Lippert Components Center Point by Trailair Air-Ride Suspension Upgrade part # LC1565401 is for leaf spring axles only and cannot be used with a torsion axle setup. If you are experiencing a rough ride then most likely the rubber inside your torsion axle has become worn and it will need to be replaced. This would be a good time to upgrade to an axle-less system as well, the Timbren Axle-Less Trailer Suspension System. The Axle-Less Trailer Suspension...
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  • Recommended Axle Upgrade from Dexter Torflex # 9 for 6 on 5-1/2 Inch Hub Compatibility
    I reached out to Dexter to confirm the proper hubs for a # 9 axle. There are not any 6 bolt options available from any of our manufacturers that fit your spindles. We have 5 on 4-1/2 inch like you already have and 4 on 4 inch bolt pattern only for your size spindle. If you desire to upgrade to the 6 on 5-1/2 inch, I recommend replacing your axles. If you go with the Timbren Axle-less System like # ASR3500S05, then you can use the Dexter Trailer Hub and Drum Assembly for 3,500-lb...
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  • Recommended Replacement Axle for 1973 Yarbrough Single Axle Trailer
    I do have a solution for you, but unfortunately we do not have any trailer axles with those dimensions. What we do have, which is actually an upgrade from any regular axle, are our Timbren Rubber Spring Suspension systems. One of the best things about the Timbren option is that they are much easier to install than a standard axle, plus they provide extra ground clearance due to the design. You can choose to get one with just a spindle, like part # ASR3500S05, with an idler hub, like...
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  • Dimension Drawing for the Timbren Axle-Less Suspension System # ASR3500S05
    I attached a picture that shows all of the dimensions of the Timbren Axle-Less Suspension System, # ASR3500S05 that you are interested in. Since I don't know much about your setup the best recommendation I can make would be for you to check out the dimensions I attached and if you decide you do need a 4 inch drop you would want the part # ASR3500S04 instead.
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  • Axle, Hubs and Electric Brakes for Converting Old Military Trailer
    We offer beam axles rated for 3500-lbs as well as axle-less suspension systems from Timbren such as their # ASR3500S05. The advantages of these Timbren systems include a lower trailer deck height and increased ground clearance. The bolt or weld right to your trailer's frame On this kit you can install hub/drums # AKHD-655-35-EZ-K which have the 6-on-5-1/2 bolt pattern and with them use self-adjusting electric drum brakes # AKEBRK-35L-SA (left) and # AKEBRK-35R-SA (right). Use 10-gauge...
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  • Replacing Dexter Torsion Axles On Trailer
    It looks like you have 3,500lb Dexter axles; while we do not have torsion axles exactly like that, we have another option that may work for you. If you don't need any lift or drop, which it looks like you don't, then I would look into the Timbren Axle-Less Trailer Suspension System 3,500 lbs # ASR3500S05 which is a straight spindle setup. You can simply weld-in or bolt-in the new assembly and then run 2" tubing through both assemblies for reinforcement as seen in the attached demonstration...
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  • What is Considered Normal Tire Size for Use with Timbren Axle Less Kit # ASR3500S05
    Standard trailer tire widths will work great on the Timbren Axle Less kit part # ASR3500S05 since this wasn't designed for wider or off road tires. The Westlake ST205/75R15 part # LHAW120 would work great. If you were wanting to go with a wider size like you mentioned 235/75 R15 A/T that's when the part # ASR35HDS02 would be a good idea as it has the wider wheel spacing.
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  • How to Determine Correct Timbren Axle-Less Suspension for Boat Trailer
    In order to determine the correct capacity of the Timbren Axle-Less Suspension you need for your dual axle boat trailer you just need to know the GVWR of your trailer or the capacity of your current axles to get the appropriate system. For example, based on the numbers you gave it seems likely you have a pair of 3,500 axles so you will replace those with 3,500 lb rated axle-less suspension systems. For that you can use the Timbren Axle-Less Trailer Suspension System - Straight Spindle...
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  • Replacement Axle for a 2016 Dutchmen Aerolite Travel Trailer
    It looks like your 2016 Dutchmen Aerolite Travel Trailer uses 3500-lb axles, so we have an option for you. We don't sell axles that meet the length specifications of your current axle, but you can instead use on of our Timbren Axle-less Suspension systems. These replace suspension and eliminate the need for an axle since they mount directly to the frame. If you choose one of those, then you will need to know your hubs, bearing, races, and seals numbers to ensure compatibility. A...
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  • Could Dexter 3,500 lb Axle be Replaced with Timbren Axle Less Kit ASR3500S05
    If you have 3,500 lb axles currently that aren't getting overloaded you could replace them with the part # ASR3500S05 and it would work well. You have to be sure that you never exceed 3,500 lbs though. We can't ever recommend you tow your trailer with these installed over 3,500 lbs.
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  • Hubs for Timbren Axle-Less Suspension for Use in Salt Water Environment
    Timbren's axle-less trailer suspension systems like # ASR3500S05 are all made with a heavy powder coat finish but it is possible to select matching galvanized idler hubs like # AKIHUB-545-35-G-EZ-K or galvanized hub/drums like # 8-247-50UC3-EZ. Both fit the spindles on this Timbren kit and both have the 5-on-4-1/2 wheel bolt pattern. If you don't mind spending more we also have a stainless steel idler hub from Kodiak, part # KH84545S. All hubs that fit the Timbren kit appear on the linked...
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  • Option for Axle On Homemade Trailer
    We have an option for you, but do not have any axles of the size you mentioned. The best option we have is the Timbren Axle-Less Suspension System, which are simply bolted or welded so you do not have to worry about finding an axle that meets any specific measurements. You only need to know the capacity you need; for example the 3,500 lb Timbren Axle-Less Trailer Suspension System # ASR3500S05, 5,200 lb system # ASR5200S01, or 7,000 lb system # TASR7KS01. I've added links to some...
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  • Timbren Axle-Less Trailer Suspension System 3,500 lb Axle for Off Road Tires and Straight Spindle
    For the straight spindle, 3,500 lb axle version of the Timbren Axle Less system that was designed for the wider off-road tires you'd want the part # ASR35HDS01.
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  • Replacement Axle Solution for Dexter Axle 1273885
    Your axle has dimensions that we don't have any direct leaf spring style axles for but we do have a Timbren axle less kit like the part # ASR3500S05 which is a 3,500 lb axle solution. This is similar to a torsion setup but uses a rubber spring and doesn't have a crossbeam. If you wanted to go with a standard axle you'd need one with 68.5 inches between spring seats and 86.5 from hub face to hub face.
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  • Recommended Timbren Axle-Less Suspension System for 2017 Forest River Surveyor
    Installing the Timbren Axle-Less Trailer Suspension System on your trailer is a great idea. I recommend sticking with a 3,500 pound system to match what you currently have. While the axle is typically the primary factor when it comes to determining a trailer's overall capacity, it is not the only component that contributes to its limit. The hubs, wheels, frame itself, etc will all work to establish the trailer's listed limits. This simply means that replacing the 3,500 pound axles on your...
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  • Recommended Axle-Less System to Replace Odd Spindle Sizes of Current Axle
    For your older trailer, I recommend getting new axles due to your non-standard spindle measurements. I recommend the Timbren Axle-Less Trailer Suspension System - Straight Spindle Only - 3,500 lbs # ASR3500S05 which will have idler hubs # AKIHUB-555-35-EZ-K that match your bolt pattern available. These can be used in tandem applications and will replace the leaf spring suspension on your trailer as well. You can add trailer brakes to these assemblies if you desire as they do have the...
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  • Availability of Lift and Drop Versions of Timbren 3,500 lb Axle Less System
    We do have the 3,500 lb Timbren Axle Less kits in a few different variations. I attached a link to a page that has all of them listed but for a 4 inch lift for off-road (wider) tires we have the part # ASR35HDS02, 4 inch lift for standard tires part # ASR3500S06. For a 4 inch drop like you mentioned we have the part # ASR3500S04. Current pricing is available below at the product links.
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