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Timbren Axle-Less Trailer Suspension - Heavy Duty - 2" Lift - 5 Bolt Flange - 3,500 lbs
Timbren

Timbren Axle-Less Trailer Suspension - Heavy Duty - 2" Lift - 5 Bolt Flange - 3,500 lbs

Part Number: TASR35HDS07
$1,260.58
Trailer Axles
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Get more clearance and a smoother ride when towing with Axle-Less trailer suspension. Built-in shock absorption limits rattle and bottoming out. E-Z Lube, 2" lift spindle raises deck height for additional clearance. Fits any trailer frame width. Great Prices for the best trailer axles from Timbren. Timbren Axle-Less Trailer Suspension - Heavy Duty - 2" Lift - 5 Bolt Flange - 3,500 lbs part number TASR35HDS07 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Trailer Axles - TASR35HDS07

  • 3500 lbs
  • Universal Fit
  • Spindles Only
  • Lift - 2 Inch
  • Rubber Spring Suspension
  • Timbren
  • EZ Lube Spindles

Get more clearance and a smoother ride when towing with Axle-Less trailer suspension. Built-in shock absorption limits rattle and bottoming out. E-Z Lube, 2" lift spindle raises deck height for additional clearance. Fits any trailer frame width.


Features:

  • 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 overlanding or off-road adventures
    • Robust, heavy-gauge steel construction is built to handle abuse
    • Black powder coat resists rust and corrosion
  • Raises trailer deck height for greater ground clearance
    • 2" Lift spindle is built in
  • Allows for simple bearing maintenance with built-in grease zerks


Specs:

  • 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 (without hubs)
  • Weight capacity: 3,500 lbs
  • Brake flange configuration: 5 bolt
  • Bolt hole diameter: 5/8"
  • Suspension travel: 2-5/8"
  • 3-Year limited warranty


Tire, Wheel, and Hub Compatibility

  • Tire size: ST235/85R16 or smaller
  • Wheel diameter: 16" or smaller
    • This assumes a wheel with zero offset
  • Bearings (sold separately)
    • Inner: 25580
    • Outer: 14125A or 15123
  • Races (sold separately)
    • Inner: 25520
    • Outer: 142376 or 15245
  • Seal: 10-36 (sold separately)
    • Inner diameter: 2.250"
    • Outer diameter: 3.376"

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 3" 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 terrain. With 2 independently operating units, you'll get better handling when making tight turns. And because this system eliminates your axle and has lift spindles built in, you'll get even greater ground 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. This may make it difficult to navigate off-road terrain.


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 want to go off-road. The lift spindles on this setup will also raise your deck height, making navigating off-road terrain much 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, 2" lift 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 3" 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 5, 5/8" 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 3" 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.

Axle-Less dimensions front view

A B C D E F
14-5/16" 16-11/16" 1-1/2" 6-1/4" 5-3/8" 5"


Axle-Less dimensions top view

G H I J K L
5-5/8" 6-1/4" 5-3/4" 2-1/4" 3-1/4" 5-1/4"




ASR35HDS07 Axleless Trailer Suspension System by Timbren - 2" Lift Spindle - Without Hubs - 3,500 lbs HD

Installation Details TASR35HDS07 Installation instructionsAlternate Instructions TASR35HDS07 Installation instructions



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Customer Reviews

Timbren Axle-Less Trailer Suspension - Heavy Duty - 2" Lift - 5 Bolt Flange - 3,500 lbs - TASR35HDS07

Average Customer Rating:  4.6 out of 5 stars   (152 Customer Reviews)

Get more clearance and a smoother ride when towing with Axle-Less trailer suspension. Built-in shock absorption limits rattle and bottoming out. E-Z Lube, 2" lift spindle raises deck height for additional clearance. Fits any trailer frame width.

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See what our Experts say about this Timbren Trailer Axles

  • Recommended Tire Size Compatible with Timbren HD 3500-lbs Axle-less Suspension System
    I'll start off by saying that wheels and tires do not come with hubs, and what hubs you'll be able to use depend on the spindles on the axles, and whether or not you'll want brakes on the trailer or not. If you're going to be using the Timbren # TASR35HDS07, you'll need hubs that have # 25580 inner bearing and # 15123 outer bearings, like the # AKHD-655-6-EZ-K for a hub and drum assembly or # AKIHUB-655-6-EZ-K for idler hubs. If you're going with the hub and drum so you can add brakes,...
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  • Lifting and Improving Ride Quality on a 2001 Casita Liberty Deluxe 17 Travel Trailer Torsion Axle
    The best option for lifting your torsion axle and getting a better ride quality would involve changing over to a Timbren Heavy-Duty Axle-Less Trailer Suspension. They have a couple options that will incorporate a lift right in the spindle. A 2" Lift # TASR35HDS07 or a 4" Lift # ASR3500S06. These utilize a rubber suspension system that each work independently of each other. This will offer you a better and smoother ride quality. We do not carry any type of shock kits for torsion axle's...
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  • Replacement Axle-Less System With Lift for 2022 Forest River Rockwood Mini Lite Travel Trailer
    We do have an axle-less system that will provide your 2022 Rockwood Mini Lite with additional clearance. The Timbren Axle-Less Trailer Suspension System is what you need. Based on what I have found, you have 3,500 lb axles on your travel trailer. I recommend verifying this information to be sure. Assuming that is correct we have the following options: -Heavy-Duty 2" Lift Spindle - Standard Tires # TASR35HDS07 -Heavy-Duty 2" Lift Spindle - Off-Road Tires # TASR35HDS06 -Heavy-Duty 4" Lift...
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  • Wrench Sizes and Torque Specs for the Timbren Axle-Less System for 3.5K Axles
    Jordan, I believe the "main" bolts you're referring to is a 5/8" bolt which you can use 15/16" socket. The Timbren Axle-Less Trailer Suspension # TASR35HDS07 also has 9/16" grade 8 fasteners, which you can use a 13/16" socket. Also when you get to it, you're going to need to torque those 9/16" bolts to 155-165 ft. lbs, and the 5/8" bolts to 185-195 ft. lbs.
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  • Option to Replace 3,500 lb Axle if None Have Right Measurements
    There is not a Dexter axle with those measurements, so the only option we can offer is an axle-less system from Timbren. These are are simply bolted or welded so you do not have to worry about finding an axle that meets any specific measurements, and for a 3,500 lb axle you can use the following: - Timbren Heavy-Duty Axle-Less Trailer Suspension - 2" Lift Spindle - Standard Tires - 3,500 lbs # TASR35HDS07 The # TASR35HDS07 also give you an improved ride compared to a traditional through-axle....
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  • Timbren Axle-Less Suspension Options With 2 Inch Lift Spindle
    I checked with the manufacturer, and there isn't an option for a 2 inch lift for the 2,200 lb Timbren systems. The only options that have a 2 inch lift are the 3,500 lb-rated and 5,200 lb-rated Timbren systems, and they each come with a brake flange welded on, though if you don't want to use brakes you don't have to use that flange. So if you want to go to a higher-rated system with the 2 inch lift you can use either of the following: - 3,500 lbs: Timbren Axle-Less Trailer Suspension...
    view full answer...
  • 1998 Haulmark 24 Snowmobile trailer - Tires and Axles
    You can confirm your axle capacity by pulling one of your hubs and looking at the reference numbers on the side of the bearing cages. A 3500 lb axle typically has an L68149 inner/L44649 outer bearing. Torsion axles do indeed wear over time which is almost certainly what's happened in your case. As you mentioned 3-4 inches is what you typically want to see as far as fender/ wheel well clearance goes. At this juncture changing the tire size to a 185/80-13 will only provide you a bit above...
    view full answer...
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  • Will a 4000-LB Leaf Spring Fit on a 3500-LB Axle
    Yes the 4,000-lb leaf spring is compatible with a 3,500-lb axle. There are a couple of important measurements. Spacing from eye to eye on the spring when unloaded with no weight on the axle. Inner eye diameter of the spring roll Spring width from outer edge to outer edge Based on your measurements I recommend the 3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 25-1/4" Long Item # e57SR and Dexter Heavy Duty Suspension Upgrade Kit for Single Axle Trailers - Double Eye Springs Item...
    view full answer...
  • What Wheel And Tire Clearances Are Needed For A Trailer Build
    Hey John, To have enough clearance for the trailer with a leaf spring suspension to travel over bumps in the road you want to have at least 3 to 4 inches between the tire tread and the fenders as well as 1 to 2 inches between the side wall and inside of the wheel well. As you hit bumps and/or add weight to the trailer the springs will start to compress, moving your tire closer to the fender. With a Timbren Axle-Less Trailer Suspension like part # ASR35HDS02 the center of your wheels...
    view full answer...
  • Recommended Suspension and Axle Upgrade For 2018 Grand Design 2800BH
    I have another option for you, but Trailer leaf springs are not designed for off-roading and can break when used in rough off-roading conditions. I do have a great option for you which is the Timbren Heavy Duty Axle-Less Suspension System # TASR35HDS04. This system has a 3500lb weight capacity which matches your current axles, but being the heavy duty version they are made of thicker metal making them a great option for off-roading. The Timbren # TASR35HDS04 will replace your current leaf...
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  • Recommended Timbren Axle-Less Suspension System For 1968 Oasis 16' Trailer
    It sounds like the Timbren Axle-Less Suspenion would be perfect for you as they are available with lift spindles, and the progressive rate AEON main springs do a great job to absorb road shock and offer a smoother ride than leaf spring suspension. The correct system will be dependent on the GVWR of your 1968 Oasis 16' trailer. The most likely options are the 3500lb option with 2" lift spindles # TASR35HDS07 or 4" lift spindles # ASR35HDS02, or the 5200lb option with 2" lift # TASR5200S05...
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  • Timbren Axle Less System for a 2004 Casita Freedom Travel Trailer
    The Timbren Axle Less System item # A35RS545E is somewhat similar to a torsion axle. These mount to the sides of the trailer frame and use a rubber spring that is similar to a torsion spring for suspension. This kit comes with electric brake assemblies and hub/drums that have a 5 on 4-1/2 bolt pattern. This system does not have any lift or drop. If your torsion axle is using a 2" lift kit you would need to remove it to install the Timbrens. If you would like a set with a 2" lift you will...
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  • Will Timbren 5200lb Axle-Less TASR5200S05 Have Same Ride Quality As Timbren Axle-Less 3500 HD?
    I would be happy to help! The Timbren Axle-Less 5200lb Suspension # TASR5200S05 you were looking at will have a stiffer ride than the same trailer with the 3500lb HD kit, the # TASR35HDS07. Both kits have the same 2" lift and use the same hub and drums, the # AKHD-655-6-EZ-K, with the main difference being the built in progressive rate AEON main spring. If you are loading the trailer close to 3500lbs I don't think the ride quality change will be glaringly obvious, but if the trailer is...
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  • Why Does the 3,500 Lb Timbren Heavy-Duty Axle-Less Trailer Suspension Use 6K Brakes
    The Timbren Axle-Less Trailer Suspension part # TASR35HDS07 is the Heavy-Duty version which uses upgraded hubs/brakes so although the weight capacity is 3,500 lbs, the system is designed to be used with 5,200 - 7,000 lb hubs/brakes. I recommend the etrailer Brake Kit part # AKEBRK-7-SA and etrailer Hub Kit part # AKHD-655-6-EZ-K.
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  • Can the Capacity of the Timbren Axle-Less Trailer Suspension System Be Upgraded
    In regards to the Timbren Axle-Less Trailer Suspension Systems, the density of the springs and spindles will both be different between models as well as the design of the brackets if there is any sort of built-in rise or drop. These components aren't interchangeable so you'll have to upgrade to a new system if you require a higher weight capacity. The part # TASR5200S03 has a 5,200 lb capacity with built-in 4" lift.
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  • Which Timbren Axle-Less Suspension System For a 28 Foot Aluminum Trailer
    The Timbren Axle-Less Trailer Suspension System 5200lbs # TASR5200S05 will work on the aluminum frame of your trailer. The easiest way to install the system since you are replacing axles is to add 2x3 tubing between the two axle-less systems to help keep your trailer's frame supported and strong. Another option since you mentioned that you had 3500lb axles on your trailer is the Timbren Heavy-Duty Axle-Less Trailer Suspension 3,500 lbs # TASR35HDS07. Using a suspension system too far...
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  • Deflection Definition of the Timbren Heavy-Duty Axle-Less Trailer Suspension 2" Lift - 3,500 Lb
    The deflection of the Timbren Heavy-Duty Axle-Less Trailer Suspension part # TASR35HDS07 is 2-5/8" which is the amount of travel under load.
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  • Can I Use the Timbren Axle Less Suspension System on a Boat Trailer
    Yes. The Timbren Heavy-Duty Axle-Less Trailer Suspension - 2" Lift Spindle - Standard Tires - 3,500 lbs # TASR35HDS07 has a nice powder coated finish on it, so it can be used on a boat trailer. Because this is a boat trailer I do recommend that your trailer has a cross-beam where the axle is being installed that can be used for structural support since you'll be removing the axle with this installation. This system does not come with hubs or brakes, so if you also need a hub with a #...
    view full answer...
  • Can One Torsion Axle On Tandem Axle Be Replaced With Timbren Axle-Less Suspension?
    I would be happy to help! Most do not have built in lift so you would more than likely just need the standard height Timbren Axle-Less Suspension. If you have standard height axles you could still use ones with 2" lift spindles if you want extra ground clearance though. Now you will need to replace both axles at the same time, as the suspension on the trailer needs to be the same for both axles. Mixing the axles would cause the trailer to handle inconsistently, and would cause uneven...
    view full answer...
  • Recommended Timbren Axle-Less Suspension to Replace Lippert 3500 lb Capacity Axle
    The numbers you provided confirm that you have a Lippert 3500 lb axle. Lippert couldn't tell me if if was a straight, a drop (which raised the trailer) or a lift (which drops the trailer) axle. Here are the available options. • For a straight spindle, use # ASR3500S05, or # A35RS545E which includes brake assemblies and hub/drums or for the same assembly but with idler hubs, use # A35RS545 • For a 2 inch lift spindle, use # TASR35HDS07 • For a 4 inch lift spindle, use # ASR3500S06 •...
    view full answer...
  • Replacement Trailer Axle For Dexter Torsion 3,500 lb Axle
    We don't carry the torsion axle replacements, but if you want the exact replacement you will want the #10 Torflex Torsion Axle. I do have a replacement option if you are interested in an alternative. You can use the Timbren Heavy-Duty Axle-Less Trailer Suspension - 2" Lift Spindle - Standard Tires - 3,500 lbs # TASR35HDS07 which uses a 2 inch square tube (not included) in the integrated holes. This mounts directly to the trailer frame and has the integrated suspension.
    view full answer...
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  • Difference in Clearance When Upgrading From 4.80/4.00-8 Tire to 205/65-10 Tire
    Although we do not have wheel spacers available, I can help you determine how much clearance you would need should you choose to upgrade your tires. It is typically recommended to have 2" of clearance between the inside of the tire and the closest part of the trailer, along with 3" of clearance on top for suspension travel. Tires like the Kenda 205/65-10 Bias Trailer Tire with 10" White Wheel - 5 on 4-1/2 - Load Range B # AM3H350 have a width of 8.3" and an outer diameter of 20.8". We...
    view full answer...
  • Will 225/65R17 Tires Work on the Timbren Axle-Less Trailer Suspension - Heavy Duty - 2" Lift 3.5K
    The tire size you mentioned, 225/65R17, is not a size used on trailers. I can't recommend using a tire on a trailer not designed for trailers but, you can physically use this size on the Timbren Axle-Less Trailer Suspension part # TASR35HDS07 with an appropriate hub. The hubs we offer for this are the Easy Grease Trailer Idler Hub Assembly part # AKIHUB-655-6-EZ-K which has a 6 on 5-1/2" bolt pattern and the Dexter Trailer Idler Hub Assembly part # 8-231-9UC1-EZ which has a 8 on 6-1/2"...
    view full answer...
  • Is There Timbren Kit that Allows Use of Wheels with 8 on 6-1/2 inch Bolt Pattern
    The lug pattern of 6 on 139.7 in inches is 6 on 5-1/2 inches which is a very standard bolt pattern for trailer wheels. Which for a Timbren axle-less kit that will fit a hub with that bolt pattern you would want the part # TASR35HDS07 which has a 5,200 lb capacity and then the hubs part # 8-213-5UC1-EZ.
    view full answer...


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