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5,000-lb Capacity. These maintenance-free microcellular urethane springs upgrade your vehicle's rear suspension. Each 2-piece spring connects at top and bottom and provides unlimited suspension travel and movement for a smooth, comfortable ride.
Features:
Specs:
SumoSprings helper springs are great for pickup trucks. Towing or hauling a heavy load can cause sag as your factory suspension compresses under the weight of the load. This means that the rear axle is trying to support not only the extra load but also the truck's weight. And because there is less weight on your front axle, your front tires make less contact with the road, which causes problems with traction, steering, and braking. SumoSprings upgrade your factory suspension to level your vehicle, improve driving performance, and keep your ride comfortable.
The innovative 2-piece design of these Rebel springs allows for unlimited suspension travel. This means that there will be more movement in your suspension when you're unloaded or off-roading, which makes your ride smoother and more comfortable.
Each spring has 2 pieces. One piece attaches to the frame of your vehicle. And the other piece attaches to the axle, typically above your existing factory leaf spring. The pieces come together to provide support when you are towing or hauling a heavy load. When you're unloaded, they separate so that they don't restrict the movement of your suspension. The closed-cell urethane springs also act like a shock absorber to dampen road vibration.
SumoSprings provide progressive load control - the more you load them, the stiffer they become. With a lighter load, the springs will compress easily for soft engagement and a less bumpy ride. The springs can also compress by as much as 80 percent to support a heavy rear load and to help your factory suspension bear up under the load. This evens out the weight, which levels your vehicle and ensures that your front tires are making better contact with the road. A level ride means that you have improved driving control, ensures safe headlight aim, and helps to minimize sway. The springs also support your factory suspension, which helps prevent sagging and reduces bottoming out.
The springs work independently from one another to support each side of your vehicle. This action helps to reduce body roll when you make a sharp turn. This also helps compensate for an off-center load.
These microcellular urethane springs are tough. They resist abrasion, oil, salt, and UV rays that can more quickly wear out other springs, and they perform well in temperatures ranging from -25 F to 200 F (-33 C to 93 C).
SumoSprings expand and compress vertically with minimum expansion to the sides, so they won't be damaged by nearby mechanical parts, and they fit safely into tighter spots. And unlike air springs, SumoSprings require no maintenance or adjustment.
This kit comes with custom-fit brackets that are designed to easily bolt onto your vehicle.
Average Customer Rating: 4.8 out of 5 stars (344 Customer Reviews)
5,000-lb Capacity. These maintenance-free microcellular urethane springs upgrade your vehicle's rear suspension. Each 2-piece spring connects at top and bottom and provides unlimited suspension travel and movement for a smooth, comfortable ride.We have a Ram 3500, carrying a 5000 lb (plus), extremely tall truck camper. The floor sits ABOVE the side rails of the truck bed. I came to the RV dealer, and of course, they would not let me have it till they inspected the truck. It HAD to be a dually to handle street corners. The inspector saw the air bags that the truck dealer had installed and commented that "You will be a lot better off when you buy some Sumo Springs. After one trip cross country, I ordered Sumo Springs, and have not regretted it since. Stabilizes this super high load on corners, cross winds, and general driving. At night, truckers no longer flash their headlights at us. This is the way to go.
Swapped out a set of air bags for a pair of Sumo Springs. The truck now self-levels when I load my slide in camper or other heavy loads. Truck handles better as it's not floating on two balloons. More stability in turns and cross winds.
Review from a similar SumoSprings Rebel in Vehicle Suspension
took about 2 1/2 hours to put them on. Love them!! Trailer sits level and truck still has it's proper angle to the road!
Review from a similar SumoSprings Rebel in Vehicle Suspension
We have a 2009 build F53 chassis on our 2010 Windsport 32A. I ordered these Sumo springs for the front axle. Hated how bad our coach dashboard would shake and rattle when going over bridge transitions, potholes, and concrete roadway section breaks. Took about an hour and were easy to install alone. Couldn't believe how much these helped the front axle. Worked so well I recently bought a set for the rear axle also. Those are a bit harder to install due to having to drill holes in frame rails to mount the upper bracket and glad I had friend to assist me. Would have only taken a little longer without the help but still easy to do by basic mechanic skills. With having both now we can certainly tell the difference and wished I had bought them sooner.
Review from a similar SumoSprings Rebel in Vehicle Suspension
The front Sumo Springs made a major difference in the stability of my Winnebago motorhome. It handles the bumps much better without major jarring of the passengers and dampens the side to side motion in turns and under crosswinds.
Review from a similar SumoSprings Rebel in Vehicle Suspension
Just Installed my Sumo Rear Springs. They went in real easy on my Dodge Ram 3500. The thing that took the most time on the install was jacking up the frame 3-4" to make enough space between the axle base and top of frame to slip in the entire lower and top sections of the Sumo Springs. Once I did that, I narrowed that space by letting the frame down a little but not all the way. Just enough to catch the receiving spring and leaving a half inch gap between the two sections. This allowed me to easily rachet the bottom u-clap without a problem and keep good alighment. I know I'm going to love this product once I hitch up. No more 2' drop in the rear end once hooking up to my 15k 5th wheel. These springs are stout but no so stout I'll beat the hell out of my body when hunting the rutted roads of the great North West. Thank you Jessie for your expertise and steering me toward the perfect application to meet my pulling and off-road needs.
Review from a similar SumoSprings Rebel in Vehicle Suspension
I installed these this afternoon. The install was relatively easy but had to deal with e-brake line guides that had to be modified. The springs have very little gap between top and bottom (close to zero). Unlike the reviews I read before purchasing, the unloaded ride quality was extremely uncomfortable. I'll check with etrailer tomorrow for possible remedies (1" lift block on rear end to create gap?) If the unloaded ride can't be fixed I will try for a return and buy air springs. Stay tuned, the rating can only go up.
Review from a similar SumoSprings Rebel in Vehicle Suspension
The Sumos made a big difference preventing sway and roll in the front of the Motorhome. Before the springs, passing trucks and side winds would make the unit shift 2-3 feet. Without moving the steering wheel.
After the springs, the unit stayed in the lane.
Review from a similar SumoSprings Rebel in Vehicle Suspension
The Sumo Springs arrived in very short order. They have not been installed yet so I will update after the installation and use. I will say that once again the customer service was excellent. Seamless purchase and advice.
Review from a similar SumoSprings Rebel in Vehicle Suspension
One year ago I installed Sumo Springs front and rear on my class A motorhome. This upgrade is the best suspension add on for improved sway control and overall handling. etrailer helped me make the proper choice based on overall vehicle weight and specific chassis. Fast shipping and fair pricing.
Review from a similar SumoSprings Rebel in Vehicle Suspension
20 minutes each side to install. Very easy & easy instructions. And WOW! What a difference in ride, handling & comfort. Immediate results . I've used sumo springs before & can't say enough good about them & etrailer as well.
Review from a similar SumoSprings Rebel in Vehicle Suspension
I really like the improved ride that these SumoSprings made in the ride of my motorhome. I changed out the old style Sumos for these two piece Sumos and would definitely do it again. It doesn't necessarily take away the bumps but it makes them smoother or not as hard of a bump. Also James was very helpful and easy to work with while placing my order and kept me informed on the status of my order.
Review from a similar SumoSprings Rebel in Vehicle Suspension
They fit fine and installed as described in the printed instructions. Reasonably easy overall, even for a novice like me. My only comment is that the video that was included showed a different set up than what was delivered. That made me unsure if I had the proper system for my truck, which indeed I did, but the difference between what was shown in the video that was "for my truck" and what was in the box had me wondering. Never-the-less, all was correct and went well.
Review from a similar SumoSprings Rebel in Vehicle Suspension
I unpacked everything and it was in good shape. All parts were intact and individually protected with paper. The directions were easily understood and very descriptive with all parts lettered with pictures and corresponded to a part and item #.
One portion of the front diagram showing the leaf spring attached to a 90 degree I beam should state that is the axle. At the top of the diagram showing the frame rail, it would help if indicated somewhere we were looking at the outside of the frame rail. Those two things would help orient the viewer to what is being looked at. Also, the note at the bottom that says "Driver Side Front" with an arrow, should be in larger print and bold text.
The actual pictures on the back side with the instructions should also say (at least in the first one) "outside of frame rail".
To sum things up it took me 3hrs to install the driver's side. Mainly because I broke loose the welded nut on the frame that holds the bump stop and I had a heck of a time getting a socket that fit on it so I could get that darn bump stop off. Having said that, it only took me 45 to 50 minutes to install the passenger side once I knew what I was doing and had all of the tools handy.
As a final note, it would be helpful to include a tool list such as 3/8" drive socket wrench with 4" or 6" extension. 13mm and 15mm deep sockets to remove Ford bump stops. Standard 9/16" ratchet wrench and or extra open end/box end 9/16" and a deep 9/16" socket. All of which only need to be 3/8" drive.
I look forward to my next trip with the SumoSprings installed.
Review from a similar SumoSprings Rebel in Vehicle Suspension
The Sumo Springs that I added to my 2020 Fleetwood Bounder motorhome (along with a Safe-T-Plus) seem to have corrected the ride & handling problems that I was experiencing. I rated the product 4 out of 5 stars because I have only driven the motorhome 20 miles of so home from the shop. The route did, however, include some rough pavement , narrow lanes & construction zones which were MUCH more difficult before. In all honesty, this is probably a five star product. I can’t wait to take a longer trip & see how it does.
Review from a similar SumoSprings Rebel in Vehicle Suspension
I called because I couldn’t find the right part number on front and back sumo springs for my National RV. Joshua put together a quote in no time. George confirmed my order and walaa I was smooth ridin’ like a dream! Thanks etrailer!
Review from a similar SumoSprings Rebel in Vehicle Suspension
Installed myself, took about an hour and a half on the first side and about 45 minutes on the second side. I have not taken a long trip yet but a 5 mile test drive after installation seemed very positive. Will update later after a trip.
Review from a similar SumoSprings Rebel in Vehicle Suspension
Preston did a great job helping me spec in the correct springs for my 2016 Thor Hurricane 27K on a F53 chassis. Placed order with him over phone and received springs two day's later. I just installed them and took Motor home on a test drive around town on bumpy streets and what a difference it made. Drives more like a truck now and less like a boat. I also installed a steering stabilizer spring and did the cheap handling fix to the sway bars. Well worth the time and effort. I did notice that the etralier installation video shows the bottom brackets of the spring installed with the "U" down which is opposite the mfg's printed instructions. I did mine according to the printed instructions cause it seemed to make more sense. Probably no big deal either way.
Thanks etrailer. I'll be contacting you guys when ready to do the back end of my motor home.
Review from a similar SumoSprings Rebel in Vehicle Suspension
Drove in 35 mph wind and did not have any problems. Took me a 75 year old man about 2 hrs on my class A motorhome.
Review from a similar SumoSprings Rebel in Vehicle Suspension
Product came in within 3 days or so. Bought SUMO SPRINGS and a steering stabilizer for my 38’ Gas Motorhome and they work wonders. Highly recommed getting these items. . Feels like a different RV. 3rd time or so that I have bought from these guys, always came thru. Happy customer. And I installed front/back sumo springs and stabilizer by myself in 2hrs.
Review from a similar SumoSprings Rebel in Vehicle Suspension
WOW! what a difference it made in the ride of our coach. The jarring in the cab is better. Installation was fairly simple with hand tools. Worth every dollar.
Review from a similar SumoSprings Rebel in Vehicle Suspension
My THOR motor coach has the Ford F-53 chassis. I rides like a truck. That should not be surprising as "it is a truck." I purchased and installed these Sumo Springs and even though it will never be "air bag" suspension, the Sumo Spring made a wonderful difference in improving the ride. I would recommend this add on to everyone and as I meet similar motor coaches on the road, I show them the Sumo Springs and I do recommend them.
Review from a similar SumoSprings Rebel in Vehicle Suspension
When you look at the bumpstop and all the travel it can go, it makes sense to fill that space with a constant contact chusion, such as the Sumo Spring. I have a 2011 F53 chassis supporting a 32 Class A motothome. 16,000 GVW and no slide. I only installed the fronts to see how they worked. I did it myself and it took about 2 1/2 hours. If I can do it anyone that can work a wrench and understands basic mechanics can do it. I'm 60 and it's a tight space under there and takes some effort, but the jobs not hard, just doing it is hard and uncomfortable. My motorhome would ride very rough on the same roads my car ran smooth. The Sumo Springs were an improvement. They did not solve the rough ride on real poor highway, but on normal rough roads, they were an improvement that will benefit the ride on more roads than not. I now plan to do the rears when I get time.
Review from a similar SumoSprings Rebel in Vehicle Suspension
Great product easy to install
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