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Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 3.5K Trailer Axles
Roadmaster

Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 3.5K Trailer Axles

Part Number: RM82MR
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$1,705.00
Trailer Suspension Parts
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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 2-3/8" axles. Great Prices for the best trailer suspension parts from Roadmaster. Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 3.5K Trailer Axles part number RM82MR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Roadmaster Trailer Suspension Parts - RM82MR

  • Equalizer Upgrade Kit
  • Leaf Spring Replacement System
  • Suspension Kits
  • Boat Trailer
  • Camper
  • Car Hauler
  • Snowmobile Trailer
  • Utility Trailer
  • Round Axle - 2-3/8 Inch
  • Tandem Axle
  • 3500 lbs
  • 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 2-3/8" 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: tandem-axle trailers
    • Axle size: 2-3/8" diameter (typical 3,500-lb axle)
  • Spring capacity: 2,500 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: 4
    • Center hanger boxes: 2
    • Shocks: 4
  • Limited Lifetime Warranty


Note: Your existing U-bolts may not be long enough for this install. U-bolts also suffer from wear and tear, so we recommend changing the U-bolts during this installation.


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 tandem-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

One end of each of the included leaf springs will attach to a hanger 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 the provided center hanger box.


Roadmaster Comfort Ride Center Hanger Box

This center hanger box differs from a traditional equalizer, which typically connects the 2 springs on a tandem-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 rear spring and, in turn, to the rear axle, 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

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

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 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.


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.



2450 Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 3,500-lb Axle

2560 Roadmaster Comfort Ride Slipper Spring System - 3,500 lb Tandem Axle

Installation Details RM82MR Installation instructions




Customer Reviews

Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 3.5K Trailer Axles - RM82MR

Average Customer Rating:  4.7 out of 5 stars   (234 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 2-3/8" axles.

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:

Prior to installing this kit, the tires would contact the wood floor of the 5th wheel (Cougar 25RES) and were starting to wear a groove. Now that the kit has been installed the rubbing has stopped. I've also noticed the drawers, that had previously self-opened, are now staying shut. Installation was fairly straight forward. I drilled and tapped the holes, for the plates, as the self-tapping screws refused to go in straight. I also put a nut on the outside screws, the others are blocked by the belly pan.



by:

This setup has been very good in reducing bumps and vibrations into the 5th wheel. It is cost effective and it works extremely well on my 2019 GD Reflection337rls. running 14 ply tires. Two weeks before this review I was under the Reflection and saw the bottom of one of the sleeper springs that had pivoted off center. Before I even touched it I went to the other u-bolt springs nuts to check tightness and torques. The other three showed no change from the install a year previous. The spring that had the issue all the u-bolt nuts were loose....so loose that I could move the nut with a wrench and one finger. So if three were good from the install why is one so bad? I put the spring back inline and retorqued the u-bolts according to the dexter axle data. Is my spring center guide pin bad now? Is this a warranty claim to etrailer? Do I need a new u-bolt due to thread stretching? I have not been on the road. since I reset the spring. Do u-bolt nuts commonly work themselves loose? Most often they do not due to the rust and corrosion. These nuts this loose after a year leave me with some install questions.



by:

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 two of theses on a Tracer 23RBS, 28Ft. Had everything needed for complete install, decent quality. Instructions had just enough info for proper install. Gas shocks a plus, anticipating a more stable ride.



by:

Great product! Excellent installation instructions (for the DIYer inclined to step up!). Excellent support... I ordered the wrong kit (my axle size was different) but customer service worked with me to correct it. I installed the shocks incorrectly but the service team quickly pointed out that I misread the instructions. I have a 12,000 pound, 38' trailer with a lift on the back for my 900 pound motorcycle. I've put around 7500 miles on it including a couple times across the Rockies and absolutely love the handling. Self installation is not for the feint of heart but it saved me around $10k labor not having a dealer install it.



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.



by:

Not being able to experience riding in the 5th wheel RV it's difficult to state the ride quality. However, without a gas shock absorber system the spring suspension is allowed, "out of control movement". Frequently I inspect the suspension and I suspect the Roadmaster System is doing what it's designed for. I would recommend this product.

RE: MORryde RV Shackle Kit-2.25" Shackles-The Wet Shackle Kit is an improvement over stock. However, despite frequent maintenance, greasing, the bronze bushings need to be replaced. With that said, it would be prudent to mfg. the bushings using yellow brass for longevity. It would be appreciated if MORryde would provide all new replacement bushings. During maintenance a top quality tenacious waterproof grease is used.

Overall, doing business with e-trailer is outstanding.



by:

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:

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:

My axles are attached above the leaf springs. This complicated the installation a bit but was not prohibitive. I have tandem axles and purchased two(2) of these kits for the trailer. Immediately, we noticed that the trailer was more stable when parked without the outriggers deployed. I wish I could get detailed drawing of the shock brackets. Knowing the designed angle where the shock absorbers mount would have been very helpful with the installation.

I am leaving for my first road trip and look forward to the increased stability during towing and not having the trailer contents thrown about during transport.



by:

Very good product. Instructions and video very good as I installed the suspension and shocks myself. Took me about a day.
I have put about 10,000 miles since the install. No problems & nothing coming loose. Helps to take some of the roughness out of the road vs standard equalizers



by:

We've been on the road since February 2024. And this system is been smooth and great. No broken stuff in the trailer and we've hit some bad bumps I would definitely recommend it.



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.



by:

This has been the best upgrade on my toy hauler to date. Great smooth ride .



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.



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:

works well.
Looking forward to first
trip and see how much it changes the ride.



by:

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



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!


25
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See what our Experts say about this Roadmaster Trailer Suspension Parts

  • Can A Roadmaster Comfort Ride Suspension Be Installed A Trailer That Rides Slightly Nose High
    Yes, you can still install the Roadmaster Comfort Ride Leaf Spring Suspension Kit even though the trailer rides slightly nose high when coupled to the tow vehicle. When installing one of these kits you'll most likely need to get longer U-bolts since there typically aren't enough threads to accommodate the additional mounting brackets. To determine the right kit and U-bolts you'll need to know the capacity and diameter of your axles and how many axles your trailer has. 3.5k 2-3/8" Tandem...
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  • Recommended Suspension To Reduce Trailer That Sways Even With a Weight Distribution Hitch
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    Hey David, If your axles are 2-3/8" in diameter then you could just use the Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers # RM82MR instead. Swapping out to heavier axles would likely give you uneven tire wear and suspension wear because the axle isn't bearing enough weight to straighten out. Every axle has a slight bend upwards in the middle and when weight is added straightens out. Without enough weight compressing the axle the tires will start to wear on the...
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  • How to Find Replacement Leaf Springs for 2012 Keystone Cougar 27RLS
    The size of the replacement leaf springs on your 2012 Keystone Cougar 27RLS should be the same as what you have now. To be more specific, you need to match the length as well as the axle capacity. Based on the weight of your trailer it looks like you have 3,500 lb axles but I would check the axle tag to be sure. The length is something you will have to measure. The standard is the spring eye to spring eye measurement. You can also use the flat measurement since your leaf springs will...
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    The shocks on the Roadmaster Comfort Ride Leaf Spring Suspension Kit # RM82MR tend to be superior to the SumoSprings Trailer Helper Springs # TSS-107-40 when you consider the contact area. The SumoSprings will only work as the material comes into contact with the frame. Which on a tandem axle trailer such as one axle compresses the other often moves away from the frame when you hit bumps which only allows one of the springs per axle to get additional support. The shocks on the Roadmaster...
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    The 2" tube attached to the frame of your 2016 Keystone Outback 278URL won't present a problem for installation of the # RM82MR. Sometimes this is added to raise up the body. According to Roadmaster, since you have that tube in place you can use through bolts instead of the self tapping screws to install the center hanger box. This will add additional stability. However, this isn't required and using the self tapping screws is perfectly fine.
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  • Will The Roadmaster Comfort Ride Create a lot Of Noise Since It Uses Slipper Springs?
    The Roadmaster Comfort Ride Leaf Spring Suspension Kit # RM82MR uses rollers on the slipper springs to reduce the noisy ride you have heard about. I know some people think they should grease the spring but his typically leads to dirt and other contaminates sticking to the parts which can cause more noise. If you do hear a lot of noise you can try some Dry Lube # RM-747 on the suspension to help reduce the friction on the metal to metal components.
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  • Will Roadmaster Comfort Ride Leaf Spring Suspension Kit Fit 2016 Keystone Outback 278ULR
    Yes, the Roadmaster Comfort Ride Leaf Spring Suspension Kit # RM82MR will fit your 2016 Keystone Outback 278ULR. This is quite a bit different than your current setup. What you measured was double eye leaf springs and this uses slipper springs. The slipper springs will bolt onto your front and rear hangers and then slide into the center hanger box. Once installed, you can expect a significantly improved ride giving you a great towing experience.
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Info for this part was:

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