bing tracking image
  1. Trailer Axles
  2. Timbren
  3. 3500 lbs
  4. Universal Fit
  5. 5 on 4-1/2 Inch
  6. Drop - 4 Inch
Timbren Axle-Less Trailer Suspension w Idler Hubs - Standard Duty - 4" Drop - 5 on 4-1/2 - 3.5K

Timbren Axle-Less Trailer Suspension w Idler Hubs - Standard Duty - 4" Drop - 5 on 4-1/2 - 3.5K

Item # A35RD545
Our Price: $895.20
Trailer Axles
Shipping Weight: 67 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos


Need help with installation?
Locate installers near me
Get more ground clearance and a smoother ride. Built-in shock absorption limits rattle and bottoming out. E-Z Lube, drop spindle lowers deck height for easy loading. Fits any trailer frame width. Includes inner (L68149) and outer (L44649) bearings. Great Prices for the best trailer axles from Timbren. Timbren Axle-Less Trailer Suspension w Idler Hubs - Standard Duty - 4" Drop - 5 on 4-1/2 - 3.5K part number A35RD545 can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (287)
  • Q & A (0)
  • Photos

Timbren Trailer Axles - A35RD545

  • 3500 lbs
  • Universal Fit
  • 5 on 4-1/2 Inch
  • Drop - 4 Inch
  • Rubber Spring Suspension
  • Idler Hubs
  • Timbren
  • Easy Lube Spindles

Get more ground clearance and a smoother ride. Built-in shock absorption limits rattle and bottoming out. E-Z Lube, drop spindle lowers deck height for easy loading. Fits any trailer frame width. Includes inner (L68149) and outer (L44649) bearings.


  • Delivers a smooth, stable, quiet ride - regardless of load size
    • Jounce springs absorb road shock and support trailer's load
    • Rebound springs minimize body roll, rattle, and bottoming out
    • Built-in camber and toe-in reduce wear on your trailer's tires
    • Units work independently - what affects one side of your trailer won't affect the other
  • Eliminates axle beam to increase ground clearance and fit any trailer frame width
    • System replaces 1 trailer axle and suspension components
    • 2 Separate units bolt directly to your trailer's frame
  • Designed for your on-road adventures
    • Strong steel construction is built to last
    • Black powder coat resists rust and corrosion
  • Lowers trailer deck height for easier loading and unloading
    • 4" Drop spindle is built in
  • Includes idler hubs with bearings, races, and seals
  • Allows for simple bearing maintenance with built-in grease zerks


  • Application: single- and tandem-axle trailers that use regular tires
    • Tandem-axle trailers require 2 complete systems
    • Not recommended for triple-axle trailers
  • Quantity: 2 suspension units (with hubs)
  • Weight capacity: 3,500 lbs
  • Bolt pattern: 5 on 4-1/2"
  • Bolt hole diameter: 1/2"
  • Suspension travel: 1-3/4"
  • 3-Year limited warranty

Tire, Wheel, and Hub Compatibility

  • Tire size: 235/85R16 or smaller
  • Wheel diameter: 16" or smaller
  • Bearings (included)
    • Inner: L68149
    • Outer: L44649
  • Races (included)
    • Inner: L68111
    • Outer: L44610
  • Seal: 10-19 (included)
    • Inner diameter: 1.719"
    • Outer diameter: 2.565"

Note: This Axle-Less system requires crossbeam support. If your trailer frame doesn't have a crossmember in place, you can retrofit it with one, or you can add a support by running a piece of 2" x 2" steel tubing through the square holes cut into these units. You could also add a steel reinforcement bracket to the inside of the trailer frame.

Get more ground clearance and a more comfortable ride when you're towing with Timbren's Axle-Less trailer suspension. This suspension system provides great shock absorption to comfortably get you where you need to go and to protect your precious cargo as you travel - even on rough pavement. With 2 independently operating units, you'll get better handling when making tight turns. And because this system eliminates your axle and has drop spindles built in, you'll get a lower deck height without sacrificing clearance.

Timbren Axle-Less Suspension vs. Other Suspension Systems

There are many suspension options for your trailer or camper. So, what makes Timbren Axle-Less different?

Leaf Spring Example

Axle-Less systems are a definitive upgrade over traditional leaf springs, in part because they allow you to do away with your thru-axle, allowing for maximum clearance. As you've probably noticed, having a leaf spring suspension means that your axle will always hang at least a few inches below your trailer's frame, resulting in limited ground clearance and a high deck height. This may make it difficult to navigate rough roads and to load items into your trailer.

In addition, while leaf springs do a great job of supporting an even load, they may cause your trailer to bounce and rattle when it's empty or to bottom out with a heavy load. And they don't offer any type of shock absorption for a smooth ride - unless you have upgrades built in. With Timbren's Axle-Less system, gone are the days of dealing with these annoyances - this suspension is designed for a quiet, balanced ride, whether your trailer's fully loaded or empty.

Torsion Axle Example

A torsion axle is a step up in terms of shock absorption, and it provides more clearance than a traditional, leaf spring suspension, but that crossbeam will still hang down some. And if your torsion axle gets damaged in any way, it can't be repaired - you'll have to replace the entire thing with a setup that matches your exact trailer frame width.

With the Axle-Less system from Timbren, you won't have a low-hanging axle beam to get in the way when you're driving on rough roads. The drop spindles on this setup will also lower your deck height, making loading and unloading your trailer way easier. And the rubber springs and independent operation both combine to absorb shock and deliver a smooth, easy ride. In addition, the Axle-Less system can be easily maintained over time, and it will fit any trailer frame width, so you don't have to worry about potentially ordering the wrong size like you might with other systems.

Timbren Silent Ride Example

Another suspension upgrade on the market is Timbren's Silent Ride. This setup is a great option to reduce bounce and rattle because it has the same AEON rubber springs as the Axle-Less system. But the Silent Ride still requires an axle, so you won't get the same ground clearance or low deck height as you will with the Axle-Less suspension.

Timbren Axle-Less Suspension Parts

The Timbren Axle-Less suspension is designed with you in mind. All of the parts work together so you can tow your trailer comfortably - regardless of load size.

Timbren Axle-Less Suspension Parts Diagram

  1. The jounce spring supports the weight of your trailer and cargo. It easily absorbs road shock and is constructed of AEON heavy-duty, hollow rubber.
  2. The rebound spring delivers a smooth, stable ride - regardless of how much cargo is on the trailer. It controls the movement of the jounce spring to minimize trailer body roll, bounce, rattle, and bottoming out.
  3. The trailing arm with integrated hanger attaches 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 polyurethane bushings that never require lubrication.
  5. The E-Z Lube, 4" drop spindle is simple to grease. If damaged, it can be removed and replaced, saving you both time and money compared to a traditional axle.
  6. The built-in hole accepts 2" x 2" steel tubing (not included) to add support to your trailer's frame. The tubing sits higher than a trailer axle, providing additional ground clearance.

Installing the Timbren Axle-Less Suspension

Measuring Diagram

The first step in installing the Timbren Axle-Less suspension is to make sure that the mounting points for each unit are directly across from each other. The easiest way to measure this is to mark the desired mounting points on your trailer's frame. Then measure the distance between these points and the center of your trailer coupler. These measurements (A and B) need to be within 1/8" to keep your trailer frame square.

Once you have your mounting points lined up, you'll be ready to install the system. Drill 3 holes into your trailer frame at the desired mounting points. Then bolt each unit to the frame with Grade 8, 1/2" bolts (not included).

Keep Your Trailer Frame Square

Because Timbren's Axle-Less system eliminates your trailer's thru-axle, you'll have to find another way to get the crossbeam support that keeps your trailer frame square. You have a few different options to do this depending on your application and how much fabricating you're comfortable doing.

Crossmember Installation

If you're building a trailer, the best option is to begin building with the Timbren Axle-Less in mind and include a crossmember where you want to install the units on your frame. You can also retrofit an existing trailer with a crossmember.

Steel Tubing Installation

If you don't have a crossmember where you want to install the Axle-Less system (and you don't want to add one), pick up a section of 2" x 2" steel tubing from a nearby weld shop. This tubing will serve as a support to keep your trailer square. It will hang only about an inch down from your trailer frame, providing more clearance than a thru-axle.

After you've mounted both of the units to your frame, you'll need to drill 3 holes into the steel tubing and into the built-in, square holes. Then, insert the tubing through the holes and secure it with 3 bolts (not included) on each side.

Reinforcement Bracket Installation

The last option is to fabricate a reinforcement bracket that can be attached to the inside of your trailer frame and to the Axle-Less suspension. It may be a little harder to fabricate a compatible bracket than to mount steel tubing, but you may get additional clearance with this method.

Dimensions of the Timbren Axle-Less Suspension

The following diagrams show measurements taken on the Timbren Axle-Less suspension system without hubs.

Axle-Less dimensions front view

13" 13-11/16" 1" 5" 1/4" 4-1/4"

Axle-Less dimensions top view

5-5/8" 6" 4-3/4" 1-3/4" 3-3/8" 3-11/16"

ASR3500S04 Axleless Trailer Suspension System by Timbren - 4" Drop Spindle - 5 on 4-1/2" Hubs - 3,500 lbs

88545_2 Trailer Idler Hub Assemblies for 3,500-lb Axles - 1/2" Studs - Quantity 2

Customer Satisfaction Score:

Customer Reviews

Timbren Axle-Less Trailer Suspension w Idler Hubs - Standard Duty - 4" Drop - 5 on 4-1/2 - 3.5K - A35RD545

Average Customer Rating:  4.6 out of 5 stars   (287 Customer Reviews)

Get more ground clearance and a smoother ride. Built-in shock absorption limits rattle and bottoming out. E-Z Lube, drop spindle lowers deck height for easy loading. Fits any trailer frame width. Includes inner (L68149) and outer (L44649) bearings.


enclosed are pics of trailer and spindle units. I was very happy with the end result,
lowering ez loader trailer 8 inches for hovercraft. the spindle units were well made,
very strong but had some weld repairs as pictures show.i could not set the needed
adjustments till I cleaned up the units with a stone and file. also please improve the
packaging . these heavy units need something better than cardboard for shipping.
they were dislodged from Styrofoam and partially poked holes thru cardboard. but
fortunately no damage there. again im happy with the installation.thank you!!!


Shockingly high quality product. Every trailer I build from now on will feature this!


Good heavy duty product

Jason M.


Axles work great





The axle-less suspension worked very well for my boat trailer. The suspension was easy to attach to the trailer frame and provided a lower profile than the traditional leaf spring and axle system.


Installed the Timbren Axle-less suspension a little over a year ago and approximately 5000 miles ago. I have been extremely satisfied with the installation and performance thus far and have had no issues. I also chose to install an optional crossmember for more strength using a 1/4" thick piece of 2x3 steel. I had to increase the weight capacity of my campers suspension due to renovating the interior completely and adding more weight. I also strengthened the frame to accommodate the extra weight. In addition to installing the Timbren 5200LB system I installed new 12" electric brakes and upgraded to 225/75R15 tires with E load range rating.


Very smooth pull. I'm very impressed on how the trailer pulls. My traditional axle trailer seemed to bounce a lot on the highway which made a lot of noise, but with the Timbren Axle-less that I installed on a new trailer, the trailer is so smooth and way less noise.
Great product.


Installed the Timbren Axle-less suspension a little over a year ago and approximately 5000 miles ago. I have been extremely satisfied with the installation and performance thus far and have had no issues. I also chose to install an optional crossmember for more strength using a 1/4" thick piece of 2x3 steel. I had to increase the weight capacity of my campers suspension due to renovating the interior completely and adding more weight. I also strengthened the frame to accommodate the extra weight. In addition to installing the Timbren 5200LB system I installed new 12" electric brakes and upgraded to 225/75R15 tires with E load range rating.


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.


Incredible system. Handled our Overland trek through Colorado and Moab. These axles on our 1917 Ford bed ran multiple Jeep Badge of Honor trails. The suspension handled flawlessly. Handles off camber rocks and drop offs smoothly. We ran the 4 inch lift and off road offset to fit the factory Jeep wheels.


I put these on an off-road trailer build. They have been fantastic! I've done many miles and they held up great. Highly recommend.


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


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.


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!


I installed these on my single axle travel trailer to replace the axle and leaf springs. Weight savings was a wash with the required steel tube for added stability. I installed on an I-Beam using aluminum plate as a spacer. It took my friend and I 3 days to install everything. The hardest part was rerouting my black pipe propane line. I also had to install it just back of center due to a steel cross beam being in the way of the middle bolt hole. I replaced the brakes and hubs as well as the wheels to match the new hubs.

Overall we've been super happy with this upgrade. The trailer rides a lot smoother. I'm not finding random screws on the floor after a long bump ride.

We decided to do this after our leaf spring broke 2 times, 12k miles between. We were done dealing with a subpar suspension. I probably would not recommend doing this if your leaf springs are working for you. We put a lot of miles on our trailer. We aren't weekend campers.


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.


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.


They have more pros than cons, but the second set I bought broke the flat plate that holds the spindle at about 8 months. The steel quality seemed less than I would expect since it basically peeled it back like a pop can as you can see in the pictures. Otherwise I like the clearance and ride. They last 2-3 years where the torsion axles I replaced would wear out in 4 months after driving down rough gravel roads. There is a grade zerk on the underside which I didn't realize until I bought the second set. That would have helped the first set last longer had I known about it.


Actual trailer weight 1540#, 210# tongue weight. 1310# suspension load. After 600 miles, both springs collapsed making the suspension rigid. Have received replacement springs from Timbren but haven't had a chance to try them out.


Needed a suspension system that I could make a low profile kayak trailer, that would fit in a specific area next to my garage. These were excellent that I could make the trailer any width I wanted. Easy to install and well made.


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)


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.


Five star. shipping was slow. Product was great 14 K 14 plies under 2000 pounds independent suspension. Low fast and sassy. Yep that’s how I build them.

Show More Reviews

See what our Experts say about this Timbren Trailer Axles

  • Availability of Trailer Axles with Drop
    The dropped axle option is the single most popular option for tiny house trailers made by tinyhouse basics, according to their website. This feature allows a 4-inch lower deck height for more interior headroom and easier entry. We do offer the axle-less Timbren trailer suspension kits that offer drop. Examples include the 3500-lb-rated Timbren kit # A35RD545E which features electric brakes with 5-on-4-1/2 hub/drums and the idler hub kit # A35RD545. These suspension kits bolt (or weld)...
    view full answer...
  • Recommended Axle-Less Trailer Suspension With Drop Spindle For Older Coachman Camper
    We have axle-less systems that are designed with a drop spindle but we do not offer a standard axle with a drop as you said you have on your trailer. We Have axle-less systems like part # A35RD545E that has electric brake hubs and has a 4-inch drop spindle. The bearings, races, and seals are included and the wheel bolt pattern is 5 on 4-1/2. For an axle-less system with idler hubs and a 4-inch drop spindle I recommend part # A35RD545. Both of these systems have a 3,500-lb weight capacity.
    view full answer...
  • Can Timbren Axle Less Kit Attach to 2 inch Square Trailer Frame
    Yes, the Timbren Axle Less kit part # A35RD545 can attach to a trailer frame that is made of 2 inch by 2 inch frame channel.
    view full answer...
  • Trailer Height When Using Timbren Axle-less System with 4 Inch Drop
    The exact height of the deck will depend on other factors with your trailer. However, I can tell you that the spindles of the Timbren Axle-less System # A35RD545 sit pretty much at even height as the location where they connect to a trailer's frame. Knowing that, if you know the tire size you'll be using and divide it in half you'll know the height the spindles will be off the ground. We can factor in that the weight of the trailer on the Timbrens will cause them to ride slightly lower...
    view full answer...
  • Will the Timbren Axle-Less Suspension System Work on an Aluminum I-Beam Boat Trailer
    You may be able to use the Timbren Axle-Less Suspension System, # A35RD545, on your aluminum boat trailer as long as you can find a way to bolt it to the frame. The frame brackets for the Timbren Axle-Less systems bolt to the outboard side and bottom of the frame rail. You will need to weld an aluminum plate to the outboard side of the frame for the side bolt holes and you will want to make sure the bolts for the bottom of the frame will not hit the center web of the frame. The underside...
    view full answer...
    Image 1 for
  • Can Timbren Axle-Less Trailer Suspension System be Used in Place of Torsion Axles on Travel Trailer
    Yes, you could use the Timbren Axle-Less system # A35RD545 in place of straight axles on your travel trailer. This system basically works similarly to torsion axles with the suspension built in. Since this system is rated for 3,500 pounds though you would likely notice a stiffer ride since the trailer will not weigh enough to compress the suspension the way it does with the two 2,500 pound axles. I have included a link to all of the Timbren systems we carry. The system you referenced...
    view full answer...
  • Troubleshooting Incorrect Wheel Alignment on Timbren Axle-Less Trailer Suspension System
    I reached out to Timbren and they suggest making sure you used the shims provided with the # A35RD545 between the outboard arm and the spindle arm. More than likely this is the reason for your wheels tilting in at the top on each side. If that does not fix the problem please feel free to reach out and I will help you troubleshoot further.
    view full answer...
  • 3,500 lb Timbren Axle-Less Suspension System With Drop For Small Camper
    It sounds like what you are needing is a Timbren Axle-Less Suspension System that has a drop spindle on it in order to have a low clearance to fit in your garage. We do have options for you, both of which have a 4 inch drop, 3,500 lb capacity and come with either an idler hub or a hub and drum. - Timbren Axle-Less Trailer Suspension System with Hubs - 4" Drop Spindle # A35RD545 - Timbren Axle-Less Trailer Suspension System with Electric Brake Hubs - 4" Drop Spindle # A35RD545E I have...
    view full answer...
  • Which Timbren Axle-Less Suspension for 3500lb Capacity Low-Deck Car Hauler
    The Timbren Axle-Less suspension system is a good choice. They offer a 4 inch drop spindle model, part # A35RD545 includes idler hubs and # A35RD545E includes electric brake hub drums. These are good for a total 3500 lb capacity, which includes the weight of the vehicle and the trailer. This would be a good option for a car carrying trailer with a low deck height. At rest, the center of the spindle would sit even with the bottom of the trailer frame, and at maximum deflection, the center...
    view full answer...
  • Available Timbren Axle-Less Suspension System Rated For 3,500 Pounds
    We have two Timbren, 3,500 pound systems with idler hubs, the Timbren Axle-Less Trailer Suspension System with Hubs - Strait Spindle - 5 on 4-1/2 # A35RS545 and the Timbren Axle-Less Trailer Suspension with Hubs - 4 Inch Drop Spindle - 5 on 4-1/2 # A35RD545. Both of these systems are designed to mount wheels that have a 5 on 4-1/2 bolt pattern. Both the # A35RS545and the # A35RD545 have 3,500 pound weight capacities and feature EZ-Lube Spindles. When choosing tires and wheels for your...
    view full answer...
  • Can Timbren Axle-Less Suspension Be Installed On EZ Loader TA102B 20-23 Boat Trailer Torsion Axles?
    The Timbren Axle-Less Trailer Suspension w Idler Hubs # A35RS545 appears to be the correct system for your EZ Loader boat trailer. This has the straight spindle which places the axle center line 3-13/16" below the axle frame. The System # A35RD545 you found has a 4" drop which places the axle center line 1/4" below the trailer frame when not under load. You can check and see which one best matches your trailer.
    view full answer...
  • Suspension and Tire/Wheel Upgrade Needed for a 3,500 lb Trailer Axle
    If you already have the axles installed then I would need to know the size of your hub as well as the bolt pattern on your hub as well to make a recommendation. I have attached a helpful article on bolt patterns for you to reference. If you don't know the diameter of your hub just let me know what the weight capacity is and I should be able to help you from there.
    view full answer...
  • How To Determine Is Spindle Is Bent On My Torsion Axle
    If your tires are in good shape and don't have any bulges, the easiest way to determine if you have a bent spindle is to take a straight edge that is longer than the tire and lay it across the tire making sure it is parallel with your trailer frame and then measure the distance from the frame to the straight edge in front and back of the tire. If the distance is not the same the spindle will be bent. I would recommend replacing your axle with The Timbren Axle-Less Trailer Suspension System...
    view full answer...
  • Suspension Travel of Timbren Axle-Less Suspension # A35RD545E
    You'd need to use a minimum of a 14 inch wheel with the # A35RD545E Timbren Axle-Less Trailer Suspension System. The brake drums recess into the wheel to a degree, and the drums wouldn't fit with a wheel smaller than 14 inches. There are brake drums that are smaller in diameter, but they wouldn't be compatible with the spindles used on any of the Timbren axle/suspension options. According to Timbren, the rubber spring allows for 1-3/4 inches of deflection. You'll want to position the axle...
    view full answer...
    Image 1 for
  • Weight Capacity for Timbren Axle-Less Trailer Suspension System # A35RD545E on Tandem Axle Trailer
    Each of the two hub/suspension assemblies in the Timbren Axle-Less Trailer Suspension System # A35RD545E is rated for 1750 lbs so together they offer the 3,500 lb weight capacity. When using two systems for a tandem/double axle application, you will have a total weight capacity of 7,000 lbs.
    view full answer...
  • Troubleshooting Squealing Trailer Brakes
    You could have drum brakes or disc brakes on your 2008 Forest River Wildcat trailer. Which if you have disc brakes it could be that you need to put the brake pad lube on the pads. I wish we carried this but we do not. Auto parts stores should have this. For drum brakes typically squealing is caused by dust in the drums. The solution would be to remove the drum and clean the assemblies. Cheap brake linings can cause this problem as well.
    view full answer...
  • Do the Electric Brakes Come with Timbren 3.5K Axle-Less Trailer Suspension System # A35RD545E
    Yes, the Timbren Axle-Less Trailer Suspension System # A35RD545E does include the actual brake assemblies as well as the hub and drum assemblies. The Timbren systems are great if you're looking for a better, independent suspension for the trailer or more ground clearance beneath the trailer.
    view full answer...
  • Tire Clearance on Fabricated Trailer Using Timbren Axle-Less Trailer Suspension # A35RD545E
    The overall diameter of a 15-inch tire will range from 27.1-inches for a 205/75-15 size to 28.4-inches for a 225/75-15 size. The linked article offers a table with tire dimensions. The standard deflection of the Timbren 3500-lb system # A35RD545E with a static load (sitting still in the driveway) is 2-5/8-inches according to my contact at Timbren. It was suggested that to this you add several more inches of clearance to allow for the effects of bumps. You will need to use the overall...
    view full answer...
  • 3,500 lb Trailer Axle Recommendation with 4 inch Drop
    Best solution we have is the Timbren Axle Less system with 4 inch drop part # A35RD545E which has a 3,500 lb capacity and would work well. This isn't a standard style axle as it attaches directly to the frame and does not have a cross tube, but it will work great and give you the drop you need. It also comes with hub/drums as well. I attached a review video for this for you to check out as well.
    view full answer...
  • Recommendation To Replace Straight Axles On Trailer For Lower Ground Clearance
    Since your straight axles are too tall for your application, you can use shorter hangers for your current axles and springs. If that won't get you the clearance you need, I recommend replacing your axle with the Timbren Axle-Less Trailer Suspension System w Electric Brake Hubs - 4" Drop Spindle - 3,500 lbs # A35RD545E. This will give you the suspension, brakes, and lower your trailer. If you need a larger capacity let me know. This system has EZ lube spindles and the 4 inch drop provides...
    view full answer...
  • Can Timbren Axle-Less Systems be Used In Tandem for a Tandem Axle Trailer
    Yes, you can use Timbren Axle-Less Systems like the part # A35RD545E that you referenced for a tandem axle setup. You cannot use this setup for a triple axle though.
    view full answer...
  • Available Timbren Axle-Less Brake System With 3500-lb Capacity For Trailer
    We do not offer torsion axles, but we do have axle-less Timbren axles that have built-n suspension. The great thing about these systems is they can be used on any width trailer since they bolt right to the trailer frame. I have attached a link to the axle-less systems we offer that you can check out. Some of the systems have a drop spindle like part # A35RD545E. These are great for trailers with a lower deck height. This system has electric brake hubs already included.
    view full answer...
  • Hub Face Measurement for Tire Clearance on 3,500 Pound Timbren Axle-Less Trailer Suspension System
    The Timbren systems that include brakes do not have parking brakes. The electric drum brakes included are Axletek. The 6 inch measurement from the hub face to the hangers of the system is accurate for the # A35RD545E system you're looking at.
    view full answer...
    Image 1 for
  • How to Measure to Determine Wheel Bolt Pattern
    You can refer to the linked article for illustration of how to measure a hub's bolt pattern. If there is an ODD number of lugs, as with a 5-on-4-1/2-inch wheel, measure from the center of one lug to a point halfway between the two lugs directly opposite on the bolt circle, as shown in the linked photo. The Timbren axle-less suspension kit you referenced, part # A35RD545E, includes hubs with the 5-on-4-1/2 bolt pattern.
    view full answer...
    Image 1 for

< Previous
123. . .5

Do you have a question about this Trailer Axle?

Info for this part was:

Employee Lindsey S
Updated by:
Lindsey S
Employee Amanda M
Updated by:
Amanda M
Employee Manda E
Updated by:
Manda E
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee David L
Written by:
David L
Employee Randy B
Installed by:
Randy B
Employee Zach D
Video by:
Zach D

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

Product Experts Available Now!
Call 1-800-940-8924