Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 7K Trailer Axles
(218 reviews)
Price: $1,727.63
Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 7K Trailer Axles
Our Price: $1,727.63
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- Reviews (218)
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Roadmaster Trailer Suspension Parts
- Equalizer Upgrade Kit
- Leaf Spring Replacement System
- Suspension Kits
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- Round Axle - 3 Inch
- Tandem Axle
- 7000 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 3" 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
- Made in the USA
Specs:
- Application: tandem-axle trailers
- Axle size: 3" diameter (typical 5,200-lb to 7,000-lb axle)
- Spring capacity: 3,500 lbs per spring
- Leaf spring dimensions: 27" long (from center of spring eye to end of spring) x 1-3/4" wide
- Eye diameter with bushing installed: 3/4" (9/16" without bushing)
- Leaf thickness: 3/8"
- Number of leaves: 5
- 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.
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.
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.
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.
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.
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.
2460 Roadmaster Comfort Ride Shock Absorbers - 3" Axles
2570 Roadmaster Comfort Ride Slipper Spring System - 7K Axle
Item # RM-2460-2570
Installation Details
Alternate Instructions
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
- etrailer mistake
- Did not arrive in time
Customer Reviews
Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 7K Trailer Axles - RM-2460-2570
Average Customer Rating: 4.7 out of 5 stars (218 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" axles.by: Bob10/04/2022
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: Joseph 05/25/2023
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.
Joseph
5/26/2024
Outstanding product. Its been another year of Rving traveling around the US in comfort as we dont really know we are towing a 35 ft 5th wheel. Dont hesitate to have the leaf spring suspension installed. Youll wish you did it years ago. Its the only way to go.
by: Bruce H.04/10/2020
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!
Bruce H.
4/11/2021
This was the best thing I could have done to make the 5th wheel experience a good one. Prior to installing failing to properly secure things in the trailer would not end well. After the install, items remained where they were last placed.
by: AJ01/15/2024
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: Mike 02/24/2024
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!
by: Matt07/12/2021
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: Charles 12/03/2023
I was looking for shock absorbers when I discovered this kit. I installed it in about a day and a half. The instructions are pretty good if you read them and follow them. We took the trailer about 100 miles last weekend. It seemed to ride smoother with this kit. Overall, I'm happy with it.
by: Bruce06/02/2024
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: Ray11/27/2019
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
by: Larry10/04/2023
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.
by: Timothy11/02/2023
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 :)
Jenny N.
11/3/2023
Thank you for letting us know. I will have our Customer Service team reach out to you in case anything is missing.
by: Gregory 06/01/2024
Great product, it make a big difference
by: Philip04/08/2020
After 1 year we are still very pleased. Have about 5000 miles towing and it is a much better ride. Worth the money. Ride is much better. We did have it professionally installed. It's a pretty big project for a driveway mechanic
Philip
4/9/2021
Continues to perform very well.
by: Brandon 07/30/2023
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.
by: Tom 08/06/2023
Can definitely tell a difference in both movement of items in trailer as well as a much smoother ride transmitted to truck. I highly recommend this upgrade to any large fifth wheel.
by: Kelly03/29/2024
Great system, tows much better
by: Leroy01/06/2024
Did the install myself. Took us all day but it is well worth it. I wasn't sure what the ride was going to be like but, WOW. You can feel the change in the way the camper takes a bump. 5200+ miles later and we are very happy with the ride. Great system as far as we are concerned.
by: Ryan11/25/2023
They was no better then the factory springs that was on there I would not buy them ever again my doors and drawers came open more with these then they factory ones.
by: Dwayne04/13/2022
I would recommend this over other type upgrades. It may cost more but like the saying goes you get what you pay for. Install was not difficult.Installed on a 2015 Fuzion 325 toyhauler,towability plus road jarring much improved having ridden in trailer before and after,you can sit in the rear in your seat and not get thrown out.The other notable upgrade was the reese goose box fith wheel hitch,a real good upgrade. Tow vehicle 2016 RAM 3500 CAB CHASSIS 4×4 CUMMINS 6.7 DSL Bradfofd built Aluminum 4 box bed.
by: Darryl 02/21/2024
It arrived on time
by: Bob 02/21/2024
Great service. Excellent product.
by: Mike05/12/2023
Love the Roadmaster Suspension. Trailer rides very smooth.
by: Michael 05/27/2023
product arrived in excellent condition. Product installed easily replacing a worn out CRE300 equalizer system. Looking forward to first pull with this installed.
by: Calvin 06/28/2023
This has been the best upgrade on my toy hauler to date. Great smooth ride .
by: Burl W.03/22/2020
Exceeded my expectations in performance on not so great highways across the United States. Porpoise action of the 5th wheel almost entirely eliminated. I strongly recommend this product to anyone.
Burl W.
3/23/2021
Still working as expected, after an additional 20K miles??
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Bob
10/17/2023
Wow, already been a year since install??!! Have put near 1k miles on since install and ride has been amazing. No more broken drawers in the back of the camper and most items in cabinets tend to stay put. Im a little concerned about the slack in the slipper spring, the side to side movement specifically, and what wear that could cause to the tires, but only more miles will tell to the tale. We do get an annoying suspension squeak from the pads that ride on the leaf springs. I found some silicon spray will quiet it down for a while so that has become a monthly maintenance item so it doesnt sound like a 20 year old POS in the campgrounds. We recently upgraded to a dually as well as upgrading the pinbox to a Reese Goosebox and have a really good ride on these crapy CO roads. All in all still very happy we did the upgrade.