1. Trailer Leaf Spring Suspension
  2. Roadmaster
  3. Leaf Spring Replacement System
  4. Springs
  5. Round Axle - 3-1/2 Inch
  6. 8000 lbs
Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks - Triple 8K, 3-1/2" Axles

Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks - Triple 8K, 3-1/2" Axles

Item # RM-2470-2580-3
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Retail:$2,625.00
Our Price: $2,179.17
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Trailer Leaf Spring Suspension
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Shipping Weight: 252 lbs
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This leaf spring suspension kit prevents shock transfer between axles, increasing traction while braking by as much as 70 percent. Heavy-duty shocks reduce bouncing, chucking and porpoising of your trailer up to 50 percent. Fits 3-1/2" axles. Lowest Prices for the best trailer leaf spring suspension from Roadmaster. Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks - Triple 8K, 3-1/2" Axles part number RM-2470-2580-3 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Roadmaster Trailer Leaf Spring Suspension - RM-2470-2580-3

  • Leaf Spring Replacement System
  • Springs
  • Round Axle - 3-1/2 Inch
  • 8000 lbs
  • Triple Axle
  • Roadmaster

This leaf spring suspension kit prevents shock transfer between axles, increasing traction while braking by as much as 70 percent. Heavy-duty shocks reduce bouncing, chucking and porpoising of your trailer up to 50 percent. Fits 3-1/2" axles.


Features:

  • Suspension upgrade system provides a smooth, comfortable towing experience
    • Slipper leaf springs replace existing leaf springs
    • Center hanger boxes replace standard equalizers
    • Heavy-duty gas shocks absorb road vibration
  • Center hanger boxes isolate leaf springs to prevent shock transfer between axles
    • Independent axle operation increases traction by as much as 70 percent during braking
    • Built-in rollers keep spring ends from hopping inside of box to create a smoother, quieter, more controlled ride
  • Nitrogen-charged shock absorbers help to eliminate trailer bouncing, chucking, and porpoising
    • Limit up-and-down motion of trailer on both compression and rebound
    • Help to control trailer sway by limiting lateral movement
  • Maintenance-free Never Fail bushings come pressed into spring eyes
    • Constructed with molybdenum and graphite
    • More durable than brass or nylon
  • Simple, bolt-on installation


Specs:

  • Application: triple-axle trailers
    • Axle size: 3-1/2" diameter
  • Spring capacity: 4,000 lbs per spring
  • Leaf spring dimensions: 27" long (from center of spring eye to end of spring) x 2" wide
    • Eye diameter with bushing installed: 3/4" (9/16" without bushing)
    • Leaf thickness: 3/8"
    • Number of leaves: 4
  • Shock length:
    • Extended 17-1/2"
    • Compressed: 11-1/2"
  • Quantity:
    • Slipper springs: 6
    • Center hanger boxes: 3
    • Shocks: 6
  • Limited Lifetime Warranty


Roadmaster Comfort Ride Slipper Springs

Upgrade your current trailer suspension setup with the Comfort Ride system from Roadmaster. The Comfort Ride provides an improved towing experience for your triple-axle trailer. Unlike traditional equalizers, the center hanger boxes in this system prevent shock transfer between axles, creating a smoother ride. In order to absorb and dissipate any road-induced shock that occurs, heavy-duty shock absorbers are included.


Leaf Spring Setup

The front and rear springs that are included with this kit will attach to the hangers that are welded onto your trailer. The eye of the front spring will attach to your existing front hanger, and the eye of the rear spring will attach to the rear hanger. The flat slipper end of each spring will slide into one of the provided center hanger boxes. The 2 center springs will mount in the middle of the setup, attaching to the hanger boxes on either side.


Roadmaster Comfort Ride Center Hanger Box

This center hanger box differs from a traditional equalizer, which typically connects the springs on a triple-axle trailer. In a standard equalizer setup, any vibration or road-induced force gets transferred between the axles until it eventually dissipates. This occurs because standard equalizers are built with pivot points at their center. So each time the front axle hits a bump in the road, the movement of that axle causes the spring to jump. This pivots the equalizer, which transfers movement to the center and rear springs and, in turn, to the center and rear axles, creating an ongoing wave of motion.


Roadmaster Comfort Ride Slipper Spring Rollers In Center Hanger Box

With the Comfort Ride setup, the center hanger sits flush with your trailer frame, preventing any movement of the box itself. This isolates each spring, thus eliminating any connection between the axles. To ensure that each spring is still able to move along with the axle, preventing an overly stiff ride, the flat end of the spring mounts in the center hanger box between a roller and a safety bolt. Having a roller positioned above the flat end will keep the spring from hopping inside of the box. Any up-and-down motion the spring incurs will be translated into front-to-back motion to create a smoother, quieter, more controlled ride.


The independent axle operation will improve handling and braking performance as well. Axle roll up occurs when the trailer's rear tires are lifted off the ground while braking, resulting in weight and traction being lost on the rear tires. With the Comfort Ride system installed, tire traction increases by as much as 70 percent during braking because there is no axle roll up. The result is a safer, more comfortable towing experience.


Gas Shocks Absorb Road Vibration

Instead of transferring shock between axles, the Comfort Ride setup ensures that each spring freely absorbs and dissipates any road-induced force on its own. In order to do this, heavy-duty shocks are included.


Roadmaster Comfort Ride Shock Absorber

The gas-powered springs inside of the shocks' 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.


You'll experience up to a 50 percent reduction in the force that's transferred to your trailer while traveling on paved roads. You'll also receive up to a 76 percent reduction over cobblestones and a 94 percent reduction over gravel roads. This means improved handling, even over potholes and uneven pavement, and the contents of your trailer will stay in place during travel.


Roadmaster Comfort Ride Shock Absorbers Installed

Typically, when shocks are installed on a trailer, they're positioned at a more horizontal 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 a nearly vertical angle. 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

This Comfort Ride 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 eyes of the front and rear slipper springs attach to the welded hangers on your trailer's frame using your existing suspension bolts. The center hanger boxes bolt over your existing center hangers and secure in place with the provided hardware. Once the safety bolts and rollers are installed in the center boxes, just slide the slipper ends of the springs in so that they rest between the bolts and the rollers. The eye of each center spring will mount in the front most center hanger box with the included hardware, and its slipper end will position in the rear box in the same way as the other slipper ends.


To install the shocks, begin by replacing your U-bolt tie plates with the plates included in this kit. 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

2580 Roadmaster Comfort Ride Slipper Spring System - 8,000 lb Axle

2580-50 Roadmaster Comfort Ride Slipper Spring Triple Axle Add-On Kit - 8K Axle






Customer Reviews

Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks - Triple 8K, 3-1/2" Axles - RM-2470-2580-3

Average Customer Rating:  4.9 out of 5 stars   (21 Customer Reviews)

This leaf spring suspension kit prevents shock transfer between axles, increasing traction while braking by as much as 70 percent. Heavy-duty shocks reduce bouncing, chucking and porpoising of your trailer up to 50 percent. Fits 3-1/2" axles.

- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


I received my Roadmaster shock absorber kit for my 5th wheel trailer, and installed it with no problems. It is exactly what I wanted. The parts fit like a glove. 597410



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


Just finished installing the Roadmaster shock system on my Momentum 398M tri-axle. The kit arrived well packaged and all items were included. The instructions that come with it are pretty straight forward and easy to understand. This would probably be a lot quicker install with some helping hands, but I did it by myself in about 6 hours. The hardest part of the entire setup is all of the overhead drilling, but with a little redneck ingenuity I was able to make that bearable. As far as this kit goes, the ordering process and the outstanding customer service from Angela W, etrailer.com rocks!! This could be the start of a wonderful relationship.. 630834



- RM-2460-50
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


This has got to be one of the best purchases that I have ever made. Angela was awesome to deal with when ordering, the package was delivered in great shape all items accounted for, clear precise instructions and the final result that I was expecting. All in all a great place to do business 635167



- RM-2570
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


Needed a bit longer bolt than was provided on a trailer. These bolts added the extra length I needed and were a perfect fit. Didn’t have to bend them open or closed to get them through the tieplate holes. 603632



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


I got my parts yesterday and everything was packed properly and all there. The instruction sheet with a complete parts list along with bolts and other parts. It will be a few days before I install the kit but from the instruction sheets and the u-tube video, I think it will be a simple job to accomplish. E-trade seems to have made the kit and system for anyone with simple tools to install. Thank you for your quick shipping. 595032



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


I installed this shock kit along with the Roadmaster RM-2560 Slipper Spring System in our 2011 Keystone Cougar 245RKS. As the model number implies, this is a rear kitchen unit. I had over 30,000 towing miles on this trailer and the bouncing trailer caused many issues: doors opening, dishes (and other items) getting thrown around inside the cabinets, many loose fasteners, etc. I had always wanted to add shock absorbers, but this new Roadmaster kit prompted me to replace the springs as well as the shocks. Our trailer has 4500 pound axles, so I was somewhat concerned that the shock kit was designed for 5200-7000 pound axles. But the Roadmaster people assured me that the kit would work fine with the 4500 pound axles, and it does! I did a quick calculation that showed that the new springs are about 14% stiffer than the originals. The shocks easily accommodate the slightly stiffer springs. The kit was relatively easy to install, but you will need multiple jacks and floor stands. Care needs to be taken to get the mounting holes for the spring box correctly located and drilled for simple installation, and my experience went fine. The ride height was very minimally affected - the kit has multiple mounting holes that help with this. And, I was able to use the original u-bolts to mount the new springs, although the instructions implied that I might need longer bolts. We have recently returned from a 7000 mile trip and I am very pleased with the Roadmaster kit. The ride improvement was immediately noticed and things do not get bounced around nearly as much as before. The trailer is also noticeably more stable and not affected as much by wind and passing big rigs. It is really great to get rid of the equalizer link that tied the ends of the original leaf springs together in the middle and allows the trailer to have a proper independent suspension. 614184



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


I installed the RoadMaster shock system on my new 30 foot fifth wheel because the first time we took the new trailer out (before shocks), the trailer bounced so much that the bouncing broke some plates in our rear kitchen cabinets. The product was straight forward to install. The only hard part was all the drilling into the frame to mount the top brackets. Working on my back, under the trailer, and around the springs with hot metal shavings dropping on my face was not pleasant. However, the installation was fairly straight-forward and the product seems to be very sturdy. I have not taken the trailer out to test the system yet but have two trips planned near term. However, based on how well my previous 5th wheel rode with shocks installed, I fully expect this installation to be well worth the money and I believe it should solve my bouncy trailer problem. 560561



- RM-2460-2560
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


Love the comfort ride system! Definitely greatly improves the ride. Pulling a 30ft. Camper with a half ton truck. Used to get a lot of the porpoising now it has almost eliminated it. Very noticable. Took longer than I thought it would for install....but got it done in a long weekend. Customer service was great. 746005



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


Looks good, haven’t installed yet but etrailer videos are very good. Excellent company 730422



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


As always etrailer delivered a great product, complete and undamaged in record time. I received the Roadmaster -2460 shock kit for the suspension on my 2019 36 foot fifth wheel three days earlier than expected and completed the installation myself in approx. six hours. Anxious to take it down the road and see how much it has improved the ride in my coach. Great price, easy installation and good instructions for those mechanically inclined DIY's. 728615



- RM-2460-2570
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


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 728150



- RM-2450
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


Installation was as shown on videos Directions were clear and all parts were included and well packaged. I need to move the gray water drain line with being all plastic was not a problem. I’ve only pulled the trailer about 5 miles since the installation I believe it’s made a large difference in the ride in the tow vehicle and the sway and handling of the trailer. The only negative I found is the shock bolts bolts are metric and the assembly bolts are SAE easy to confuse a half inch self locking nut with a 12 mm. Ruined 1/2 inch nut requiring a trip to the hardware store. A good half inch drive impact wrench is a huge labor saver and putting the 32 self tapping bolts into the trailer frame. 720830



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


Well, all the shocks are installed. Working on my back is hard, not as easy to do stuff today as it was years ago but I got I done. Sharp drill bits and using the frame mounting plates as a guide was the key. However, I had so much dirt and metal bits in my hair I had to take my dogs flee comb to my head before I could shower. Now for the next project whatever that is. I’m sure I’ll think of something. 713280



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


Arrived very well boxed, nice heavy brackets, fit well with exception of trying to get angle and length both correct. But after a bit of thinking and grinding and welding every thing worked out quit well. Will find out next week how much improved it will be, as we start our annual long trip estimate about 12,000 miles this trip out. 694448



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


They were easy install I am looking foreword to trying it out This week end 691420



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


Parts arrived in 2 days, everything needed was in the box. Tech support was helpful and the installation was doable for a beginner. Great product. Now for the joy ride. Thanks 673858



- RM-2460-2570
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


This was absolutely the BEST purchase I've made for my fifth wheel to date, hands down. Went from having very rough chucking/porpoising/bouncing to a rig that drives like a Cadillac. Seriously. If you are having issues with this while pulling your trailer, THIS is the product to install. HIGHLY RECOMMEND!!! 672641



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


This is a great product, it smothered out my fifth wheel nearly eliminating the chucking. 666608



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


e trailer has always been fast shipping and anything i buy is always packed very well. thank you 663829



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


Haven't installed yet, but arrived fast will install when I get my travel trailer back from warranty work. Will update than! 663371



- RM-2460
by:

Review from a similar Roadmaster Comfort Ride in Trailer Leaf Spring Suspension


Arrived early in excellent shape. Looks very well made. Have not installed yet but am sure it will work great. Have ordered from etrailer before and never had a problem. Thanks to Dylan for making ordering very easy. Great service 646675


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Info for this part was:

Edited by:
Lindsey S
Updated by:
Sarah W
Written by:
Mike S

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