bing tracking image
  1. Trailer Leaf Spring Suspension
  2. Roadmaster
  3. Suspension Kits
  4. Boat Trailer
  5. Camper
  6. Car Hauler
  7. Snowmobile Trailer
  8. Utility Trailer
Roadmaster Comfort Ride Shock Absorbers for Triple Axle Trailers - 8,000-lb Axle

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

Item # RM-2470-3
Our Price: $1,157.96
Trailer Leaf Spring Suspension
Shipping Weight: 70 lbs
Add to cart
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

In Use/Installed

Need help with installation?
Locate installers near me
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 Triple Axle Trailers - 8,000-lb Axle part number RM-2470-3 can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (191)
  • Q & A (0)
  • Photos

Roadmaster Trailer Leaf Spring Suspension - RM-2470-3

  • Suspension Kits
  • Boat Trailer
  • Camper
  • Car Hauler
  • Snowmobile Trailer
  • Utility Trailer
  • Round Axle - 3-1/2 Inch
  • 8000 lbs
  • Triple Axle
  • 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.


  • 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


  • Application: triple-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: 6 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 Shock Absorber

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.

Roadmaster 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 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

2470-50 Roadmaster Comfort Ride Shock Absorbers - Triple Axle Add-On Kit - 3.5" Axles

Customer Reviews

Roadmaster Comfort Ride Shock Absorbers for Triple Axle Trailers - 8,000-lb Axle - RM-2470-3

Average Customer Rating:  4.7 out of 5 stars   (190 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.


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.


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.


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.


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


I spent considerable time researching how to improve the towing experience of my 5th wheel camper without breaking the bank. This is an excellent product and it performed exactly as I had hoped. It improved my trailer's handling over the very rough roads we travel in just about every state in our country. If you are looking to improve your towing experience, then this is a reasonably priced product.


The product itself is very well made and shipped. Install is pretty straight forward, measure twice, drill once type of thing.

My issue with this product is actually etrailer. I purchased this and 5 days later the price was $xx less. I contacted customer service figuring they could credit the order given 5 days passed but was told that their pricing changes daily in some cases and would not credit the difference. I kept an eye on the price over the next week and sure enough, noticed multiple price fluctuations from $xxx to $xxx. I'm not sure how this policy wins customer loyalty, but that's how etrailer operates apparently. If you buy this from etrailer keep a close eye on the price, you could save nearly 20% if you buy it on the right day.


My brother in law installed the slipper spring kit to replace a broken spring and equiflex on the left side of my 2018 solitude 384GK. We found it very easy to install and the written instructions and a couple of videos helped. We travelled from Phillipi WV to Arley Ala. after. I saw a very big difference in the handling and stability of the RV. Was very pleased with the results. I have not installed the shocks yet will do that when I get to Fla.
I purchased the kit from E trailer the service was excellent received everything 2 days earlier than expected, no damage or missing parts. I dealt with Ashley at E trailer she was extremally helpful and knowledgeable.


Great addition to my camper. After being frustrated with broken leaf springs, stuff broken in the camper and being jarred from pot holes, I installed these shocks to help the ride. Easy to install (just takes time) and a great addition.


Great kit, really beefy high quality components, nice powder coating. Because my axles are above the leaf springs which I believe is relatively rare, the kit needed some modification, not too bad if you're handy and have additional tools. This kit is a no brainer for axles underneath leaf springs, pretty much bolt on from seeing the eTrailer videos, dramatically improved ride quality on my 20 mile test drive, looking forward to our next trip.


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. problems.
Thanks etrailer for your help.


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!


One of the packages has arrived split, found a large washer on the driveway next to the split. More to come, if allowed to update on unpacking. Hopefully nothing is missing, but it does not look good at this point :)


I had installed this same kit several years ago on my fifth wheel camper. Recently I had to travel on a very wash boarded road near St George, Colorado. I had 2 of these shock units fail so I order the new one since they worked so well for so long. To my amazement the new rendition of the shock absorber system had been completely redesigned a greatly beefed up. I do believe that these newly designed units would have held up against the rigor of the road I had to travel. I'm very satisfied with them. In addition I'd like to say that other than having to work under the trailer to do the installation it is a very easy job to do, just follow the instruction and do one wheel at a time.


I’m impressed with the product, the plates and brackets are well machined and finished…it was extremely difficult drilling the holes for the upper shock mount…the spring equalizer was directly under the holes to be drilled…maybe it’s my model of trailer that is making it hard…2012 27’ Keystone Cougar..


One of the best things I’ve installed on my travel trailer. They smoothed out the ride and removed the sway from my trailer. Every travel trailer made should have these installed on them at the factory.


Excellent product! Absolutely TRANSFORMED my towing experience! Installed on a 2017 Open Range 310BHS travel trailer. Approximately #10,500 loaded. Trailer doesnt bounce or jolt over the road. Ride is substantially bettter. System is tough, thick, and seems it will last. Instructions are pretty clear, and all tooling neede is pretty basic. I reccommend a digital inclinometer to be able to set your shock angles precisely. They're cheap on [online]. I reccommend this kit to every single person who has the same bouncing issue. Could not be happier with the purchase!


This product is exactly what I was looking for and thanks to “etrailer” they assisted me in getting the right product for my specific application. Thank you all for your help and great customer service and support over the many years.


We live in our RV full time, Montana 3820 FKS, so I had to do the install while staying at a campground. I was able to get it all done over the course of a couple days without too much trouble. If you have an average mechanical skill you should be able to tackle the job no prob. Overall the ride has improved significantly over the stock suspension. I also had all the wheels balanced which takes some of the vibration out as well.


The Roadmaster Comfort Ride Shock Absorber kit on our Forest River Surveyor travel trailer was a great upgrade on our travels on rural highways and areas with wind. On our trip last fall from the Oregon Coast to Northern Idaho was a good test of this system and made for more relaxed driving! Should be installed at the factory!


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.


Installation went well, product fits perfectly. Test drove 5th wheel after install, it's absolutely a game changer! Love it!


Put a set on a 35’ Open Range Light 5th wheel and greatly improved the towing experience and putting a second set on 41’Montana with hopes of the same results. Easy to install just give yourself plenty of time.


Instructions where easy to follow and install went without incident. Only took the trailer for a short test drive after install so can't determine if trailer is riding better of rough roads.


What a great product. The difference it made in our ride was outstanding. You almost forget you are towing a 35 ft 5th wheel behind you. We travel from West coast to East coast over all type roads and this product made such a difference. Sorry we didn't have it installed sooner. Definitely made a differance and would highly recommend to all Rv owners.


great product, I'm a fabrication/designer, well thought out and much better than the original factory suspension. I also added structural kickers to the suspension hangers to help side load generated while turning and not relying on the hangers for strength. I also replaced the original factory u bolts, might as well have all new going back on

Show More Reviews

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

  • Can Roadmaster Comfort Ride be Used on Axles on Top of Leaf Springs of 8k Triple Axle Trailer
    Yes, you can absolutely use the Roadmaster Comfort Ride Shock Absorbers for Triple Axle Trailers - 8,000-lb Axle # RM-2470-3 on a trailer with the axles mounted on top of the leaf springs. When installing these on a trailer with the leaf springs on top of the axle, you will just bolt the extension plate to the tie plate’s mounting flange using the middle holes of the extension plate, as noted in the linked instructions for the Comfort Ride Shock Absorbers # RM-2470-3. These are going...
    view full answer...
    Image 1 for
  • Can Roadmaster Comfort Ride Kits Fit Under Slung Trailer Axles
    Yes, we've checked with Roadmaster in the past and they've confirmed for us that the Roadmaster Comfort Ride Leaf Spring Suspension Kits like the # RM-2470-2580-3 that you referenced can be used on under and over slung axle setups. The part # RM-2460-2570-3 is the kit that includes springs and shocks or for just a shock kit you'd want the part # RM-2470-3. I attached a review video for this for you to check out as well.
    view full answer...
  • How To Make Hauling A 43ft Fifth Wheel More Comfortable With A 2019 GMC Sierra 2500 Duramax
    That is a pretty big camper. You have done most of what you can do on your 2019 GMC Sierra 2500 SRW Duramax. The anti sway bar on the truck is only going to really benefit you if you are hauling a bunch of weight in the bed of the truck which is not the same as hauling a fifth wheel on a hitch. I would maybe look into upgrading the suspension on the trailer and adding something like the Roadmaster Comfort Ride Add-On Kit for Triple Axle Trailers Item # RM-2470-3. This kit is designed...
    view full answer...
  • Best Equalizer Upgrade, Shocks, Suspension Kit For 8,000 lb Triple Axle Trailer w/ 35" Axle Spacing
    Okay, we can get you all of that, and let's start with the equalizer upgrade, suspension kit, and shocks for your toy hauler with triple 8,000 lb axles. The best equalizer upgrade for your 35 inch axle spacing, along with the needed suspension kit is the following: - MORryde Rubber Equalizers for Triple Axle Trailers - 35" Wheelbase # MR39ZR - MORryde Suspension Upgrade Kit for Triple Axle Trailers # MR86ZR This will give you the heavy-duty set-up you want while also cushioning your...
    view full answer...

Do you have a question about this Trailer Leaf Spring Suspension?

Info for this part was:

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:
Noah M
Employee Sabrina W
Updated by:
Sabrina W
Employee Dustin K
Video by:
Dustin K
Employee David F
Installed by:
David F
Employee Mike S
Written by:
Mike S

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.