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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
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Our Price: $660.00
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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 suspension parts 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 Suspension Parts - 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   (218 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.

by:

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:

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.



by:

I had a tech install the shocks on our 2019 Shasta Phoenix 37FE fifth wheel. He did an excellent job and now we experience a better ride and a lot less surprises when we arrive and open our camper door. Railroad crossing, terrible Georgia interstates, and ruff roads are allot smoother now with less bouncing.



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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.



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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:

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.



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:

With all the proper tools, the install was only like 4 hours. I did this outside on a gravel driveway and then took to my local fire department where it was level to install the shocks. The ride difference was noticed immediately.



by:

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.



by:

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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See what our Experts say about this Roadmaster Trailer Suspension Parts

  • 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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  • 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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  • 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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  • 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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    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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  • 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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  • What Is The Best Suspension Upgrade Available For Winnebago 2455BHS Travel Trailer?
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  • Recommended Shock Kit For 2016 Forest River Cedar Creek 34RE 5th Wheel Trailer
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  • Is There Roadmaster Comfort Ride Shock Kit that Fits 3 inch Diameter Axles
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  • Do the Roadmaster Comfort Ride 5th Wheel Shocks Come with Brackets and Hardware?
    The Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 8,000-lb Axle # RM-2470 comes with the adjustable mounting brackets and hardware included. The tie plates included will replace your existing u-bolt tie plates but you will reuse the u-bolts themselves. Once the tie plates are in place you will bolt the upper mounting bracket to your trailer frame with the included hardware. These Nitrogen-charged shock absorbers will be a great help to the ride of your 5th wheel...
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  • Fitment of Roadmaster Comfort Ride Shock Absorbers for Tandem 8K Axle Trailers
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Info for this part was:

Employee Mike L
Expert Research:
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Edited by:
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Updated by:
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