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Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 8,000-lb Axle

Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 8,000-lb Axle

Item # RM-2470
Retail:$732.59
Our Price: $615.74
You Save: $116.85
Trailer Leaf Spring Suspension
Shipping Weight: 55 lbs
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Improve your towing experience with this shock absorbing upgrade kit for leaf spring trailer suspensions. Heavy-duty shocks reduce trailer bounce, chucking, and porpoising. Adjustable mounting brackets and hardware included. Fits 3-1/2" axles. Great Prices for the best trailer leaf spring suspension from Roadmaster. Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 8,000-lb Axle part number RM-2470 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Roadmaster Trailer Leaf Spring Suspension - RM-2470

  • Suspension Kits
  • Boat Trailer
  • Camper
  • Car Hauler
  • Snowmobile Trailer
  • Utility Trailer
  • Tandem Axle
  • 8000 lbs
  • Shocks
  • Roadmaster

Improve your towing experience with this shock absorbing upgrade kit for leaf spring trailer suspensions. Heavy-duty shocks reduce trailer bounce, chucking, and porpoising. Adjustable mounting brackets and hardware included. Fits 3-1/2" axles.


Features:

  • Heavy-duty gas shocks absorb road vibration to provide a more comfortable towing experience
    • Nitrogen-charged shock absorbers help to eliminate trailer bouncing, chucking, and porpoising
  • Adjustable mounting brackets allow the shocks to be positioned nearly vertically
    • Limits up-and-down motion of trailer on both compression and rebound
  • Shocks sit at an outward, 15-degree angle
    • Helps to control trailer sway by limiting lateral movement
    • Improves front-to-back, side-to-side, and up-and-down movement of your trailer
  • Bolt-on installation
    • Included tie plates with extension pieces replace your existing U-bolt plates
    • Upper brackets mount on trailer frame with included hardware
    • Shocks attach to tie plate extensions and to upper brackets to help dampen movement of axle


Specs:

  • Application: tandem-axle trailers with leaf spring suspensions
    • Axle size: 3-1/2" diameter (typical 8,000-lb axle)
  • Shock length:
    • Extended: 17-1/2"
    • Compressed: 11-1/2"
  • Quantity: 4 shocks
  • Limited Lifetime Warranty


This Comfort Ride suspension upgrade system greatly improves your towing experience. It serves as an add-on for your leaf spring suspension, and it provides a notably smoother ride, reducing chucking, axle roll-up, and suspension rebound. This means that you'll experience improved handling, even over potholes and uneven pavement. And the contents of your trailer will stay in place during travel.


Gas Shocks Absorb Road Vibration

While traditional leaf springs support your trailer to prevent bottoming out, they don't necessarily provide a comfortable ride. Due to the rigidity of the steel construction, leaf springs do a poor job of absorbing shock and bounce and limiting sway.


Roadmaster Comfort Ride shocks

Adding these shocks to your existing leaf spring suspension offers a better solution. Gas-powered springs inside of the sealed cylinders compress and extend as you drive. The compression and extension of the springs creates enough force to offset the amount of incoming force or vibration that occurs when you tow over rough or uneven terrain. The result is a more comfortable towing experience.


Comfort Ride Shock Absorbers installed

Many trailers will have shocks mounted at around a 40-degree angle, but this positioning doesn't compensate very well for the up-and-down movement of the trailer's suspension. Roadmaster's patented adjustable frame brackets are specifically designed to allow these shocks to be mounted at an optimum angle between 20 and 40 degrees. As a result, these shocks will have the leverage necessary to limit up-and-down and lateral movement during both compression and rebound.


Rigorous Testing Standards

The Comfort Ride shock absorber system has endured rigorous testing to ensure its durability and longevity. This testing includes computerized Finite Element Analysis, which establishes guidelines to ensure superior product quality and safety. Roadmaster also tested these shock absorbers at the Navistar Proving Grounds, a private test facility that provides real-world handling and safety testing. The result is a safe, long-lasting product that you can trust.


Installation

Installation of the Comfort Ride system is fairly straightforward.


The included tie plates replace your existing U-bolt tie plates. You will need to retain your existing U-bolts and nuts for installation. Once the tie plates are installed, bolt the upper mounting brackets to your trailer's frame with the included hardware. Some drilling is required when mounting the brackets to the frame. Finally, attach the shocks between the tie plates and the frame brackets.



2470 Roadmaster Comfort Ride Shock Absorbers - 3.5" Axles

Installation Details RM-2470 Installation instructionsAlternate Instructions RM-2470 Installation instructions



Customer Satisfaction Score:


Customer Reviews

Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 8,000-lb Axle - RM-2470

Average Customer Rating:  4.7 out of 5 stars   (215 Customer Reviews)

Improve your towing experience with this shock absorbing upgrade kit for leaf spring trailer suspensions. Heavy-duty shocks reduce trailer bounce, chucking, and porpoising. Adjustable mounting brackets and hardware included. Fits 3-1/2" axles.

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We installed these on our 2022 Riverstone Legacy 39RKFB and without a doubt they have saved us on broken rims (many have this issue) and the ride was an instant upgrade. We drove a 6500-mile trip over the summer to ZION and Rockies and no issues at all. I installed them myself and recommend them as an inexpensive solution to expensive independent suspension.



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Product came with good instructions and installed exactly as advertised. Haven’t tested it on the road yet. I am going on a trip from Texas to New Mexico. The roads are terrible. Hope this makes the trip easier.



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Thank you for the extra fast service service. Its always a pleasure to do business with you



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Install wasn’t bad. Grand design welds a V bracket inside the spring hangers for more strength so that was my only challenge on install. This caused a problem on the center hanger as the spacer wouldn’t fit. Had to grind about a quarter inch off the spacer so it would fit as I could only bend the bottom of the hangers so much. Will be towing about 100 miles this weekend so it will be nice to hopefully not have broken drawers in the back of the trailer as well as shelves in the fridge door dislodged. I also did the X factor cross braces on the front and rear hangers for more strength. Will post back after we get more miles on it, but given all the other positive reviews I don’t think I’ll be unhappy.



by:

Installed a year ago, I made a drilling template to help locate the frame mounting bracket screw holes. Installed a set on (2) fivers, spent average of 2.5 hours for total installation per fiver. Helped the ride of the trailer. Would certainly recommend the shock kit.



by:

7-28-2023
1. The impression from "people"
was usually "why shocks on a camper", which I would answer "why shocks on your car".
2. The ride was much better; as you may imagine driving your car without shocks. And the sway was minimized & the braking effectiveness increase.
3. We've sold that RV and on our new one already planning the install; and including the wet bolts and mod on the leaf-spring hangers.



by:

All travel trailers should be equipped with shock absorbers. Roadmaster nailed it with the brackets which fit perfectly. Be sure to order the longer u bolts.



by:

This is a great kit! Everything needed is included. Be sure to purchase the heavy duty wet bolt kit for the shackles.



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OMG! After having the trailer bottom out on the stock springs while traversing a RR crossing, this system has proven to be amazing. Returning from a VA campground I crossed multiple RR crossings and traveled some rough pavement. I found I had left a bottle of shower soap on the ledge in the shower! It was still there when I set up in my yard. Not possible with the stock suspension!



by:

Along with the new springs....everything works as advertised. Well satisfied. No complaints.
I had to modify the one set of shock brackets to fit, as I have raised the trailer 5 inches
to match up with the 4 inch raised truck.
Otherwise...no swaying....no bouncing........no problems.
Thanks etrailer for your help.



by:

The suspension system is amazing! It feels like the 5th wheel is riding on coil springs. The shock absorbers make such a noticeable difference; why these aren't installed at the factory will forever puzzle me.
Installation was straight forward. The length and quality of current U-bolts allowed for reuse.
I was skeptical about the fasteners, until the first one was torqued to specs...it was soon apparent that the provided hardware was more than adequate for the job.
I wouldn't hesitate to purchase this system again, and I promote it as often as possible.
Thank you, and all the etrailer staff!



by:

After much research and evaluation I found the Road Master to be my first choice for our 2023 Grand Design Reflection Tandom Axle RV. The engineering, manufacturing and quality is demonstrated in this product. The components are heavy duty with clear instructions. I’ve not had the opportunity to install yet however before we embark on a 2 month tour, I’m confident in this added suspension package to assure a safe, comfortable ride.



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This kit made a huge difference in the ride of our fifth wheel and we would recommend the product.



by:

Best upgrade you can do on your toy hauler! It’s a little stiff at first unloaded but man what a difference when fully loaded! Smithed out the ride tremendously even on the washboard highway! A huge piece of mind when comparing it to the stock set up. Definitely recommend it!



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The cabinet doors aren't flying open and everything rides much smoother!



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This is a great product, it smothered out my fifth wheel nearly eliminating the chucking.



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Less bouncing, furniture doesn't move around when traveling on rough roads, better stability.



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So far so good on my 2015 Open Range 3X427BHS!

Overall, the old suspension system was just rusted and worn out and the tires were a maximum of 1" apart, which made me really nervous while pulling. It was tough to remove, but nothing a little WD-40 and some praying couldn't fix!

Installation was pretty straight forward using the included directions and [online video] University. Looking forward to seeing how it rides this weekend on our next trip.


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Show More Reviews

See what our Experts say about this Roadmaster Trailer Leaf Spring Suspension

  • Are There Shock Absorbers for an 8,000 Lb 3-1/2 Inch Diameter Trailer Axles
    We do offer one shock absorber kit for 8,000 lb, 3-1/2" diameter trailer axles in the Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers part # RM-2470 which are a mostly bolt-on fit. If you have a triple axle then you'll also need the Roadmaster Comfort Ride Add-On Kit for Triple Axle Trailers part # RM-2470-50. These shocks will do a great job of helping reduce road shocks helping keep the trailer in better condition and making for a smoother ride in the tow vehicle.
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  • Comparing SumoSprings Helper Springs And Roadmaster Comfort Ride Shocks For 5th Wheel Trailer
    I would be happy to recommend a suspension enhancement option for your 14000lb GVWR 5th wheel trailer. Starting with the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket # TSS-106-40 which act as shock absorbers taking the brunt of bumps and bouncing on rough roads, and offer 500lbs of support when 50% compressed to prolong the life of your leaf springs and suspension components. This option is great for being maintenance free, but will only fit trails with 3-leaf leaf springs,...
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  • Shock Kit to Smooth Out Ride of Trailer with Tandem 8k Trailer Axles
    The best option to smooth out the suspension of your RV that has tandem axle 8k Lippert springs is the Roadmaster Comfort Ride Shock Kit for 8k axles part # RM-2470 which was designed for your axle diameter and capacity. This would do a better job than a Timbren Silent Ride but worth nothing is that Timbren does not offer a kit for 8k axle replacements. Dampening the suspension movement will do the most to make the ride quality smoother which is what a shock kit does.
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  • Fitment of Roadmaster Comfort Ride Shock Absorbers for Tandem 8K Axle Trailers
    The Roadmaster Comfort Ride Shock Absorbers for Tandem 8K Axle Trailers, # RM-2470 is designed to fit axles that have 3-1/2" in diameter. This is an an add-on for existing leaf spring suspension on RV's to reduce chucking, axle roll-up, and suspension rebound. We also have kits available for triple axles and 2-3/8" and 3" axles.
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  • Roadmaster Comfort Ride Shock Absorbers for Tandem Axle 5th Wheel
    Based on the information you gave me you have a couple options for shock absorbers for your 5th wheel trailer. If you 5th wheel has 3" axles you are going to want the Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers item # RM-2460 you were looking at. This system is for a tandem axle trailer with 5,200 lbs to 7,000 lbs axles. These heavy duty gas shocks absorb road vibration to provide a more comfortable towing experience. This kit improves front-to-back, side-to-side, and...
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  • Can you Use the Roadmaster Comfort Ride Shock Absorbers for 5200 - 7000-lb Axes on an 8000-lb Axle
    The Dexter 8,000-lb axles are typically 3-1/2" in diameter, whereas the Roadmaster Comfort Ride Shock Absorbers, part # RM-2460, only fit on 3" diameter axles (which is standard for 5200 - 7000-lb axles). So, unfortunately, you will need swap these. We have the 8000-lb version of these shock absorbers here. They are part # RM-2470. I've linked to a video review of these for you to look at.
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  • Is There Roadmaster Comfort Ride Shock Kit that Fits 3 inch Diameter Axles
    If your axle diameter is actually 3 inches the correct Roadmaster Comfort Ride kit is the part # RM-2460. If you had the 3-1/2 inch diameter axle instead you'd need the # RM-2470.
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  • Should I Add A Shock Kit To My 2018 Grand Design Reflection 150 Series Camper?
    There really are no drawbacks to adding a shock kit to your 2018 Grand Design Reflection 150 Series 220RK. I do like them as they will smooth out the ride and actually help with sway issues as well. There are a few options to choose from and though they are more expensive, I do prefer the Roadmaster options. These have a Lifetime Warranty and come as tandem axle kits as well. I was unable to find the capacity of the axles on your camper, so I do have all three options listed below. Roadmaster...
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  • Compatibility of Roadmaster RM-2470 Comfort Ride Shock Absorbers with Disc Brake Equipped 8K Axle
    The Roadmaster # RM-2470 Comfort Ride Shock Absorbers for Tandem Axle Trailers aren't an RV specific item, they're designed for 8K axles with a 3-1/2 inch diameter axle tube with leaf spring suspensions. It will be compatible with disc brakes. If your axles meet those parameters, the Roadmaster # RM-2470 will work great for you. The linked video explains how the system works, but we don't have an install video at this time. I have linked to the installation instructions, which I hope...
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  • Can The Comfort Ride Shock Absorbers # RM-2470 Be Pointed Outwards On a 5TH Wheel With 8K Axles?
    While you could install the Roadmaster Comfort Ride Shock Absorbers # RM-2470 in the other orientation pointed away from the equalizers this would greatly decrease their effectiveness. Since the Equalizer allows for more movement on that side of the axle the shock absorbers have further they can travel to reduce shock. The best options are to either go with the full Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks # RM-2470-2580 and remove your equalizers. Or you might consider...
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  • How to Improve Ride of Trailer With Tandem 8k Axles & MORryde CRE3000 Rubber Equalizers
    We can get you a more comfortable ride, though the Road Armor equalizers truthfully won't do the job as an upgrade over the CRE3000 MORryde Rubber Equalizers like # MR87ZR or # MR27ZR, they would just be replacing one upgraded equalizer with another to little effect. Based on the fact you have these equalizers I'm going to assume you do have tandem, 8,000 lb axles, and the best way to significantly improve your ride is with a shock kit from Roadmaster: - Roadmaster Comfort Ride Shock...
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  • What Is The Best Suspension Upgrade Available For Winnebago 2455BHS Travel Trailer?
    I would be happy to help you find the best suspension upgrades for your Winnebago 2455BHS Travel Trailer. First while we do not carry the blue version of the Road armor 3500-8000lb equalizers you mentioned, the Road Armor # LC696740 are the exact same thing just yellow instead. Both have the same 3500-8000lb rating and the same dimensions. The # LC696740 measures 6" between the horizontal mounting holes, 3-1/2" between the center of the of the upper mounting holes and the center line...
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  • Recommended Roadmaster Comfort Ride Shock Absorbers for 8,000 lb Axles
    You will want the Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 8,000-lb Axle # RM-2470. This kit is specifically designed for that tandem axles of that capacity. If you want the entire upgrade kit then use the Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks - Tandem 8K, 3-1/2" Axles # RM-2470-2580 is what you'd need. This has the shocks as well as the custom leaf spring system to reduce bounce, chucking, and porpoising of the trailer while increasing...
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  • Recommended Shock Kit For 2016 Forest River Cedar Creek 34RE 5th Wheel Trailer
    I would be happy to help, but I am not sure what you are referencing when you mentioned MORryde shocks as MORryde currently does not offer shocks. Between the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket - Single Axle - 5K to 8K - Overslung # SS26MV you were looking at and the Roadmaster Comfort Ride Shock Absorbers I recommend the Comfort Ride hands down as it will do the best job of giving you a more comfortable ride. The Comfort Ride kits use nitrogen filled heavy...
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  • Roadmaster Comfort Ride Shock Absorbers for a 2020 Jayco 405 Talon Trailer
    For your 2020 Jayco 405 Talon it's going to depend on what size axle you have. The Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 8,000-lb Axle item # RM-2470 fits 3-1/2" axles. The Roadmaster Comfort Ride Add-On Kit for Triple Axle Trailers - 5,200-lb to 7,000-lb Axles item # RM-2460-50 fits 3" axles. You will need to determine what size axles you have to decide which kit to buy. I have linked a review video so you can see this system in action.
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    It appears that you have 8,000lb axles on your 2018 Iron Bull triple axle trailer. If this is what you have I recommend the Roadmaster Comfort Ride Shock Absorbers # RM-2470 along with the Add-On Kit for Triple Axle Trailers # RM-2470-50. These shock absorbers will help to reduce shock inside the trailer as well as provide a more stable ride for the trailer. In the event you do not have 8,000lb axles please let me know what weight rating axles you have.
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  • How to Determine When Shocks on a 5th Wheel Trailer Should Be Replaced
    Shocks should typically be replaced between 50,000 and 100,000 miles or when you start to experience more bounce when you go over uneven surfaces like railroad tracks. For your 8,000 lb. axles, we only have one shock option available and it is a kit. - Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers # RM-2470
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  • Will the Bolt-On Shock Kits for Trailers Work With Underslung Axles
    I do have an option for you but the Lippert Components Bolt-On Shock Kit like part # LC281281 is designed for use on overslung axles (leaf springs over axle) only. Therefore, it should not be used with the underslung (leaf springs under axle) axles that you have. The reason for this is that the shock absorbers would not be long enough and there could be interference with the axle tube. Instead, I recommend using the Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers part...
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  • Mounitng Hardware And Shocks Needed For The Roadmaster Comfort Ride Suspension System
    The Roadmaster Comfort Ride Shocks can be purchased separately with part # RM-204000-00. We unfortunately don't sell the mounting hardware separately so you would either have to purchase it directly from Roadmaster or from your local hardware store. I've listed the hardware use to mount the shocks below: 24x M12 flat washer 8x M12 x 1.75 x 100mm bolt - class 8.8 8x M12 x 1.75 nylon insert lock nut - class 8.8 8x 1/2" spacer
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  • Will Roadmaster Comfort Ride Shock Absorbers Work w/ MORryde Suspension LRE 4100 Suspension?
    We have talked to Roadmaster about this before and their item # RM-2460 Roadmaster Comfort Ride Shock Absorbers will work with your MORryde LRE 4100 suspension system. The only requirement is that you have the 3" diameter axles these are designed to fit. Since you have 3-1/2" diameter axles you'll want item # RM-2470 instead.
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  • Determining Correct Shock Absorber Kit For Tandem Axle Trailer Weighing 7500-8000lbs Loaded
    I would be happy to recommend a shock system for your tandem axle trailer. The correct system for your application is going to be based on the rating of your current axles, since each kit is designed to fit a certain diameter axle, and going with a system that is severely overrated will actually hurt the ride of trailer by being too stiff and not allowing the trailers suspension to do its job. Since you mentioned that your trailer has tandem axles you will need a kit that is designed...
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  • Full Suspension Upgrade For Lippert 7000 lb Axle On 2014 Grand Design 369RL
    It is good to hear that you are upgrading the suspension components that your 2014 Grand Design 369RL came with from the factory. Most of the time if not every time the stock components are very poor in quality resulting in giving a poor driving experience. For your leaf springs we have one that may work but you will need to make some measurements to make sure they will work with your MORrydem CRE3000 system. The 6-Leaf Double-Eye Spring # e64SR are for 7,000-lb Trailer Axles and are 24-7/8"...
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    Image 1 for
  • How To Add Shocks To A Tandem Axle Trailer
    I do have an option for you but the Lippert Components Bolt-On Shock Kit like part # LC281281 is designed for use on overslung axles (leaf springs over axle) only. Therefore, it should not be used with the underslung (leaf springs under axle) axles that you have. The reason for this is that the shock absorbers would not be long enough and there could be interference with the axle tube. Instead, I recommend using the Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers part...
    view full answer...


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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Edited by:
Lindsey S
Employee Kathleen M
Updated by:
Kathleen M
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
Updated by:
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Employee Sabrina W
Updated by:
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Employee Dustin K
Video Edited:
Dustin K
Employee David F
Installed by:
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Employee Mike S
Written by:
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