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1978 Blue Bird All American
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SumoSprings Solo Custom Helper Springs - Rear Axle
Part Number: SSR-117-40
In Stock
$319.99
1978 Blue Bird All American
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SuperSprings Intl Vehicle Suspension - SSR-117-40
Highlights
- Custom Fit for Your Vehicle: Mounts to existing attachment points
- 1,000-lb Load Support: Levels your ride under load to reduce sag and keep handling steady.
- No Maintenance Needed: Closed-cell urethane design means no air lines, leaks, or PSI checks.
- Smoother Ride Comfort: Progressive springs soften bumps when light and firm up as weight increases.
- Better Stability in Turns: Each spring works independently to cut body roll and sway.
- Simple No-Drill Install: Bolts on easily with basic tools for quick driveway setup.
Features to know about
Stay Level and Confident Under Load: Up to 1,000 lbs of Rear Suspension Support
Hauling heavy gear can make the rear of your vehicle sag, throwing off steering and braking. These SumoSprings Solo helper springs add up to 1,000 lbs of support at 50-percent compression to help keep your ride level and stable when towing or carrying a load. By sharing the work with your factory suspension, they help minimize squat, keep your headlights aimed correctly, and make driving feel steady even when the bed is full.
Smooth Out Rough Roads: Progressive Load Control
Not every trip needs heavy-duty stiffness. These microcellular urethane springs compress easily under lighter loads for soft engagement and a smoother ride, then firm up automatically as weight increases. They act like shock absorbers to dampen vibration and cushion bumps so you don’t feel every crack in the road. Whether you’re lightly loaded or pushing their full support range, the ride stays comfortable and controlled.
Stay Steady in Crosswinds and Turns: Independent Spring Action
When an off-center load or a tight turn tries to throw you around, these springs work independently on each side to keep your vehicle balanced. That helps cut down on sway and body roll through curves and crosswinds. The result is a planted, predictable feel even when carrying uneven cargo or backing into a sloped driveway.
Built Tough to Handle Real Work: Durable Microcellular Urethane
These springs are made from microcellular urethane that resists oil, salt, and UV damage while holding up in temperatures from -25 F to 200 F. They compress vertically with minimal side expansion so nearby components stay protected. There’s no air pressure to monitor or tubing to route—just a maintenance-free setup that performs season after season without fuss.
Simple Setup That Fits Right: No-Drill Installation
Installing these helper springs doesn’t require special tools or drilling into your frame. The custom-fit design mounts directly in place of the factory bump stops so you can get extra suspension support in an afternoon using basic tools. Once installed, they’re always ready to take on the next load without adjustments or upkeep.
Specs
Weight and Capacity
- Weight capacity (at 50-percent compression): 1,000 lbs
Warranty
- Limited lifetime warranty
- 30-Day satisfaction guarantee
SSR-117-40 SuperSprings Sumo Springs Solo Rear Vehicle Suspension Kit for Trucks
This Product Fits The Following Vehicles
- 2009 - 2018 Ford F-150 4 Wheel Drive
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
- Product did not meet expectations
- Did not arrive in time
Ratings & Reviews
4.7
2546 reviews
by:
Anthony
05/26/2026
Easy installation they took care of the squat with my car trailer loaded
by:
Jack
09/23/2022
I installed these myself on a 2020 F150 XLT 4x4 in half an hour. There was no need for a jack or jack stands because the ride height of the stock suspension allowed just enough room. As you can see in the photos, the assembly is about 9” tall, the same distance between the frame and the axle. The ride height remained the same as before using the 1” spacer! The instructions did fail to mention that a 15mm socket is needed to tighten the new hardware.
I do have a concern about the shape of the spring at the axle being unlike the oem bump stop. Why couldn’t the spring have the same contour so that deflection would be minimized? I say this because of the very close proximity of the brake lines and wiring harness to the helper spring, especially on the driver’s side. It would be interesting to film the movement of the helper spring as this vehicle is driven over rough roads to see just how close it comes to the brake lines. I’m not completely satisfied in the design, so we’ll see how this goes.
I do have a concern about the shape of the spring at the axle being unlike the oem bump stop. Why couldn’t the spring have the same contour so that deflection would be minimized? I say this because of the very close proximity of the brake lines and wiring harness to the helper spring, especially on the driver’s side. It would be interesting to film the movement of the helper spring as this vehicle is driven over rough roads to see just how close it comes to the brake lines. I’m not completely satisfied in the design, so we’ll see how this goes.
by:
Alexander K.
05/20/2021
2019
Ford
F-150
Very easy to install. I had zero issues and it took me about 20 minutes. Pictures shown are a 2019 F-150 with max trailer package and zero weight in the bed. Test drive with no weight in the bed made the ride feel smoother and the back end was noticeably more muted when going over bumpy roads. Typical behavior without the sumo springs would have been a much bouncier ride.
by:
Daniel
05/21/2022
Ford
F-150
My F150 seemed to have super soft rear springs. After adding a topper, any payload made it squat. The Sumo Springs have really helped stop that from happening. I'd recommend them to anybody that ever plans on putting anything in/on the bed of their truck or towing a trailer. You get the performance of airbag overloads without having install an air compressor or plumbing.
by:
Robert
08/07/2023
2014
Toyota
Tacoma
I installed these, this month, on 2 pickups. A 2005 Toyota Tacoma witha 6' bed so it properly supports a slide in bed camper built by Scout. The other pick up is a 2014 Ford F150 Super crew w/6' bed. These Sumo springs corrected the trailering issues I had with my rear end dipping or drooping evertime I hitched a large boat, my 18' utility trailer or even my 16' sled trailer. I installed these along with new rear shocks and now the truck rides level when loaded. Very very happy with the ride, yes it does bounce a tad more but I am fine with that part. The Tacoma bounces a bit more unloaded too but when the camper is in, ride is perfect and level. I would buy these again and are very easy to install.
by:
Jeff
09/09/2022
On my previous truck I had airbags, which I replaced 1x due to leaking. In addition to extra effort when pulling my travel trailer I was looking for something more maintenance-free and found these SumoSprings. It only took a few minutes to install and I've used these SumoSprings throughout the summer and find them to be just what I was looking for, they're perfect for use with my trailer or when I have a heavier load in my truck - I highly recommend these.
by:
Ben
10/14/2022
2019
Ford
F-150
Easy install. 0 maintenance. Keeps my 19 f150 crew from sagging badly when I have a atv in the bed and a trailer on the hitch. Helps give a more controlled towing experience. Would purchase again.
The 1000lb were perfect for me. Ride quality unloaded or loaded is still great.
The 1000lb were perfect for me. Ride quality unloaded or loaded is still great.
by:
Shaun
02/13/2022
Ford
Flex
Better than I thought. Ride just fine, I'm over an inch off the leaf springs. I run a load dis hitch and the sumo springs are for back up. It's the leaf spring flex and body roll in cournering I wanted to minimize. Works as I wanted and saves my springs and shocks.
by:
Trevor
04/28/2022
Put these to the test shortly after install with 1in. Spacer on my 2-1/2in. Leveled 2020 F150 FX4. 20ft heavy duty dual axle trailer - on it,a Bobcat 4wd tractor, bucket, and leveling blade attached. Plus tools, sacks of topsoil and rock in bed of the truck and on trailer. Truck sagged a little off of level but handled it beautifully... Even on rough Louisiana roads! Definitely recommend these springs!
by:
Ben
08/14/2019
2018
Ford
F-150
I installed these on my 2018 F150 4x4. I did not use the 1" spacer, unloaded I have 1.25" gap between the axle and the Sumo spring. Unloaded I can notice the firmer rear suspension when hitting large bumps, but I can't tell a difference on small bumps. When towing a trailer this helped a lot to reduce the bouncing up and down in the rear that I used to get. I feel more in control when towing with these and I'm happy with them.
by:
William
06/21/2018
I have had sumo springs on my last truck and love them. You get the performance of air lifts without the air compressor and plumbing. Very easy to install and maintenance free. eTrailer delivered exactly what I ordered in 2 days. Excellent service!
by:
Jim
12/21/2019
2018
Ford
F-150
Exact fit
Fair price
Super fast shipping
Fair price
Super fast shipping
Jim R.
12/22/2020
1Yr later, still great!
by:
Tim
10/03/2024
They impressed me for what they can support and how the truck handles with them with a load on the trailer
by:
Hunter
09/12/2022
Easy to install and makes a big difference in how the truck rides when pulling our 5th wheel trailer.
by:
Darrel
01/12/2022
Ford
F-150
I used the 1000lb Sumo spring in a 2020 f150. They work great for hauling a camper. They don't destroy the ride quality like a Timbren (I previously had these in the same truck)
by:
John
05/14/2020
2019
Ford
F-150
I have just installed the springs on my 2019 Ford F150 FX4 & immediately noticed a difference in ride quality. I haven't pulled my trailer yet but expect less rear sag & improved handling. Excellent product for price, ease of installation & improved handling.
by:
Steven
04/11/2022
2020
Ford
F-150
Easy installation and a very effective product. Fast shipping and priced reasonably. Highly recommend.
by:
Jeffrey
05/27/2021
Seems to be made well, final fit is good, took a minute to figure out mounting due to this item must fit a wide range of application.
by:
Chris
03/31/2020
2010
Chevrolet
Colorado
Item arrived in a timely manner and was easy to install. I have not had a chance to haul with it so I will update later
by:
Wilson
02/02/2022
Would be nice to offer different size spacers. Half inch would be great.
by:
Matt
02/01/2022
by:
Kyle
09/11/2022
by:
Phillip
09/19/2022
by:
Elizabeth
03/06/2023
2018
Ford
F-150
25
2546
true
Show More Reviews
See what our Experts say about this SuperSprings Intl Vehicle Suspension
- Recommended Suspension Enhancement for 2020 Ford F-150 with 1,500 Pound Trailer Tongue WeightThe 1,000 pound capacity SumoSprings Solo Custom Helper Springs # SSR-117-40 for 4 Wheel Drive and # SSR-116-40 for 2 Wheel Drive referenced in your question will offer a smoother empty ride in your 2020 Ford F-150 than a higher rated alternative spring. It is important though to keep in mind that any weight coming from behind the rear axle of your F-150 and from the trailer hitch itself should also be considered when choosing a suspension enhancement system, as this will be included to...
view full answer... - Best SumoSprings For 2020 Ford F-150 4WD For 5th Wheel TowingThe two SumoSprings you mentioned are the same but for their weight capacity of 1,000 lbs vs. 1,500 lbs; so for your 2020 Ford F-150 4WD that is towing a 5th wheel trailer the best option is definitely going to be the 1,500 lb spring: - SumoSprings Solo Custom Helper Springs # SSR-117-47 The reason is, since you have a hitch weight of over 1,300 lbs, you'll need the spring with the right amount of support, and the 1,000 lb option isn't quite enough as they will constantly be compressed...
view full answer... - Choosing Between the 1,000 Lb and 1,500 Lb SumoSprings for a 2019 Ford F-150 4x4I recommend the SumoSprings Solo Custom Helper Springs part # SSR-117-47 instead of part # SSR-117-40 for your 2019 Ford F-150. In regards to the SumoSprings, you will always want to have a safety margin and the above will be perfect for your setup. The springs have a progressive load rate so the 1,500 model with 850+ lbs will have a smoother ride than the 1,000 lb model with 850+ lbs. In regards to unloaded ride quality, there should be no affect on this for the exception of going over...
view full answer... - Comparing Blue Vs. Black SumoSprings for a 2017 Ford F-150The loaded tongue weight of the trailer will likely be over the 1,000 capacity of the blue SumpSprings part # SSR-117-40 so I recommend the black SumoSprings part # SSR-117-47 for a 2017 Ford F-150. The tongue weight capacity of the trailer (loaded) is the best way to choose between the two.
view full answer... - Rear Helper Springs for a 2012 Ford F-150 4x4 and Forest River Stealth Model 1913Timbren rear helper springs # TFR1504D for your 2012 Ford F-150 4x4 will definitely help with the sag you are experiencing when towing your Stealth toy hauler. But when not towing or carrying a load in the truck bed you will likely experience a stiffer ride, more jarring on bumps than the stock suspension. For a similar option that features a softer spring style we have SumoSprings # SSR-117-40 rated at 1,000 pounds, or # SSR-117-47 rated at 1,500 pounds. These springs will have more give...
view full answer... - Is The Spacer For RoadActive Suspension Still Needed With SumoSprings On 2015 Ford F-150? You will not use the spacers included with the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611-YHD if your 2015 Ford F-150 already has the SumoSprings Solo Custom Helper Springs # SSR-117-40. The SumoSprings have a different mounting bracket which replaces the traditional jounce spring and cup which is not compatible with the spacer included with the RoadActive kit. Do be sure to use the 1" spacer included with the SumoSprings.
view full answer... - Rear Suspension Enhancement To Reduce Bouncing When Towing a Enclosed Trailer With a 2017 Ford F-150The Air Lift LoadLifter 5000 Ultimate Air Springs # AL88385 are going to work better to stop the bouncing that you are experiencing in your 2017 Ford F-150 than the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611-Y. The Air Lift kit has an internal jounce spring that is designed to help reduce the bouncing that you are feeling by absorbing it. The RoadActive is strictly to provide stability and reduce sag on the rear suspension. I recommend the SumoSprings Solo Custom...
view full answer... - Are SumoSprings Compatible w/ a RAS System on a 2018 Ford F-150?Yes, they will! The SumoSprings Solo Custom Helper Springs item # SSR-116-47 are compatible with the RAS system installed on your 2018 Ford F-150. Adding the helper springs will give you some additional support when it comes to sagging if you don't have your RAS system adjusted all the way. This will probably make for a smoother ride. These will definitely help with any bouncing you're experiencing.
view full answer... - Will Suspension Enhancement Help While Towing 5,500 lb Trailer with 2013 Ford F-150Adding suspension enhancement like the SumoSprings Solo Custom Helper Springs # SSR-117-40 to your 2013 Ford F-150 will help with towing or hauling, but since you're already using a weight distribution system and you've installed some suspension enhancement I think we need to start from the ground up first to make sure that everything is set up correctly. The first thing you need to check out is what the towing weight rating is for your F-150. According to the Ford towing guide it looks...
view full answer... - Best SumoSprings for 2018 Ford F-150 With Light LoadThe SumoSprings I recommend for a light load on your 2018 Ford F-150 are the SumoSprings # SSR-117-40 because they work progressively to keep your vehicle level and give you a smoother ride . The SumoSprings are made of a microcellular urethane which compresses independently and has a 1,000 lb capacity which allows them to reduce body roll and sway as well as keep your truck level whether you are carrying a load of 1,000 lbs or 250 lbs. These springs are very easy to install, as you...
view full answer... - Recommended SumoSprings Solo Custom Helper Springs for a 2020 Ford F-150The SumoSprings Solo Custom Helper Springs I recommend for a 2020 Ford F-150 is part # SSR-117-47 which have a 1,500 lb weight capacity. The reason I recommend going with this spring is because it has the perfect combo of support/comfort therefore will help with reducing sag while loaded or towing while also not decreasing ride quality. The SumoSprings Solo Custom Helper Springs part # SSR-117-40 which have a 1,000 lb weight capacity I recommend using for very light duty, occasional...
view full answer... - Recommended SumoSprings for a 2013 Ford F-150 4x4 With the 3.5L EcoBoost EngineFor your 2013 Ford F-150 4x4 with the 3.5L EcoBoost engine, I recommend using the SumoSprings Solo Custom Helper Springs part # SSR-117-47 which are rated for 1,500 lbs. The reason I recommend going with the 1,500 lb system over the 1,000 lb system (part # SSR-117-40) is because it's better to have too much capacity than not enough. The SumoSprings are also made of a much softer material than their counterpart, the Timbrens so they won't have that jolting feeling while you are unloaded...
view full answer... - Best Suspension Enhancement for 2018 Ford F-150 Towing TrailerThe best suspension enhancement solution we have for your 2018 Ford F-150 4x4 that you'll be towing with is the RoadActive Suspension Kit part # RAS3611-YHD which is easy to install, adjustable in support, maintenance-free, and unlike other options actually improves ride quality loaded and unloaded whereas other options are known to make the ride rougher. This also will work with a 2 inch lift as well.
view full answer... - Will SumoSprings Be Beneficial When 2018 F150 FX4 Already Has Road Active System And WDH?Hello Rick, Sounds like you’ve got your 2018 F-150 FX4 set up pretty well already—especially with the RoadActive Suspension and front leveling shocks. That’s a strong foundation for towing. You can still add SumoSprings to the rear for a bit of extra support, especially if you’re noticing squat or some side-to-side movement when loaded. They will work alongside the RAS, but I’d recommend starting with the RAS on its lowest setting so the two systems aren’t fighting each other. For your...
view full answer... - Recommended Suspension Enhancement for 2016 Ford F-150 with 1,500 Pound Trailer Tongue WeightThe 1,000 pound capacity SumoSprings Solo Custom Helper Springs # SSR-117-40 for 4 Wheel Drive and # SSR-116-40 for 2 Wheel Drive referenced in your question will offer a smoother empty ride in your 2016 Ford F-150 than a higher rated alternative spring. It is important though to keep in mind that any weight coming from behind the rear axle of your F-150 and from the trailer hitch itself should also be considered when choosing a suspension enhancement system, as this will be included to...
view full answer... - Best Fifth Wheel Hitch and Suspension Upgrade for a 2011 Ford F-150 5.5 Feet BedThe best quality and most affordable 5th wheel hitch for your 2011 Ford F-150 is going to be the B&W Patriot 5th Wheel Trailer Hitch item # BWRVK3200. B&W makes the best 5th wheel hitches on the market. The dual jaw on the Patriot offers a secure connection with 360-degree jaw-to-king-pin contact. This 5th wheel hitch has a 16,000 lbs towing capacity and a 4,000 lbs vertical load limit. The Patriot also comes in a 18,000 lbs capacity item # BWRVK3255. To install the Patriot you are going...
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- Will Adding SuperSprings Suspension Enhancement Raise The Rear Of A 2016 Ford F-150When suspension enhancement like the # SSR-117-40 are used, they do not raise the back end of the truck. These only provide support when you carry heavier loads and help when you travel over roads where the suspension may bottom out. Installing these suspension enhancement kits will not increase the vehicle capacity and are designed to be used with a suspension system in good working order.
view full answer... - What Is The Size Of The Jounce Bumper Bolt For A 2009 Ford F-150The Jounce bumper bolt for your 2009 Ford F-150 is a M10-1.5 X 30 mm. With having to replace the jounce bumper bolt it would be a great time to upgrade your Jounce Style Springs! The SumoSprings Solo Custom Helper Springs # SSR-117-40 are maintenance-free and have a 1,000 pound capacity and will upgrade your Ford F-150's rear suspension system. The springs have a simple, no-drill installation and work in temperatures from -25 F to 200 F. I attached a review video link below.
view full answer... - Rear Suspension Enhancement Product for 2019 Ford F-150If your weight distribution system is set up properly, and you're using the correct system whose capacity can handle the fully loaded tongue weight of your trailer, you shouldn't still have a much of a problem with the rear suspension sagging. Before purchasing a rear suspension product, I'd recommend consulting the installation instructions and revisiting the setup procedure for the weight distribution system you're using to ensure that everything's been set up properly. I'd also recommend...
view full answer... - Best SumoSprings For 2013 Ford F-150 For Towing Travel TrailerFor your 2013 Ford F-150, the SumoSprings that are the best option for you while you are towing are the 1,000 lb capacity springs: - SumoSprings Solo Custom Helper Springs # SSR-117-40 These are the blue springs (I verified with SumoSprings there aren't any yellow springs for your truck), and their 1,000 lb compression rating is going to be perfect for your needs. The heavier, 1,500 SumoSprings # SSR-117-47 aren't necessary for occasional towing and would be better suited for a work truck...
view full answer... - Will Adding SumoSpring Rear Helper Springs Create a Bouncier Ride on Unloaded 2014 Ford F-150If you take a look at the instructions I have linked for SumoSprings # SSR-117-40 you will see that, when unloaded, the springs make little to no contact with the rear axle on a 2014 Ford F-150. If may seem a little more stiff when going over bumps. So it will have a small effect on the unloaded ride quality.
view full answer... - Choosing Correct SumoSprings Solo Custom Helper Springs for a 2011 Ford F-150Yes, the SumoSprings Solo Custom Helper Springs part # SSR-116-40 for 2WD or part # SSR-117-40 for 4WD are a great option for a 2011 Ford F-150. They offer a bolt-on fit and work well to reduce sag while towing or hauling. The 1,000 lbs of support they provide will be more than enough for your setup. Just make sure the tongue weight of the trailer and weight of cargo in the bed over the rear axles does not exceed this rating.
view full answer... - Recommended Sumo Springs Helper Springs for 2017 Ford F-150If you have a 2WD, I recommend using the SumoSprings Solo Custom Helper Springs - Rear Axle # SSR-116-47. If you have the 4WD then instead you would need the # SSR-117-47. These progressive load control springs adjust as weight is added for shock absorption and stabilization. These springs require no maintenance so they are great to give you support when needed and simply allow your factory suspension to work as designed when they aren't needed. They are great for reducing sag as you...
view full answer... - Is There A Jounce Style Spring That Fits My 2021 Ford F-150 4 X 4I can definitely find a suspension enhancement for your 2020 Ford F-150. Unfortunately, the SumoSprings Solo Custom Helper Springs - Rear Axle, part # SSR-117-40, does not fit your 2021 Ford F-150, 4 X 4. The closest thing to SumoSprings I have, that will fit your vehicle, is the Timbren Rear Suspension Enhancement System part # TFR1504E. This fits the rear axle of your 2021 Ford F-150. They will help to reduce body roll and to provide additonal support when you need it. I have included...
view full answer...
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Dennis S.
6/28/2022
Had these on for a year. They are an excellent addition when towing our camper. 5 stars