SumoSprings Solo Custom Helper Springs - Front Axle
(2237 reviews)
Price: $238.99
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SumoSprings Solo Custom Helper Springs - Front Axle
Item # SSF-103-40
Our Price: $238.99
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SuperSprings Intl Vehicle Suspension - SSF-103-40
- Jounce-Style Springs
- Front Axle Suspension Enhancement
- Light Duty
- SuperSprings Intl
1,000-lb Capacity. Upgrade your vehicle's front suspension with these maintenance-free helper springs. Sturdy microcellular urethane springs cushion bumps and help support a heavy load to level your ride and minimize sway. No-drill installation.
Features:
- Helper springs upgrade your vehicle's front suspension for improved driver control and comfort
- Support heavy front-end loads to keep your vehicle level
- Help to absorb bumps and shocks
- Minimize sway
- Progressive load control - springs compress according to the weight of your cargo
- Lighter loads - springs compress easily at first for soft engagement and a less bumpy ride
- Heavier loads - springs compress by as much as 80 percent for support
- Springs work independently from each other to compensate for off-center loads and reduce body roll during sharp turns
- Durable microcellular urethane
- Works in temperatures from -25 F to 200 F
- Resists damage caused by oils, road salts, and UV rays
- Minimal lateral expansion - springs compress vertically instead of to the sides so they aren't easily damaged when operating in tight spaces
- Maintenance-free - no tubing to run or air pressure to monitor like with air springs
- Simple, no-drill installation
- 2 Jounce-style springs included
- Made in the USA
Specs:
- Weight capacity (at 50-percent compression): 1,000 lbs
- SumoSprings will not increase your vehicle's weight-carrying capacity
- Limited lifetime warranty
- 30-Day satisfaction guarantee
Front Suspension Support
A heavy front load, such as a snowplow or a winch, can cause front-end sag as your factory suspension compresses under the weight of the load. This means that the front axle is trying to support not only the extra load but also the weight of your vehicle. And because there is less weight on your rear axle, your rear tires make less contact with the road, which causes problems with traction, steering, and braking. SumoSprings upgrade your vehicle's factory suspension to level your vehicle, improve driving performance, and keep your ride comfortable.
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 closed-cell urethane material allows for smooth contact between the springs and your vehicle. And the springs act like a shock absorber to dampen road vibration.
The springs can also compress by as much as 80 percent to support a heavy front 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 rear 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.
Durable, Custom-Fit Springs
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 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.
The helper springs are custom designed to fit your vehicle, and they install easily - no drilling required.
SSF-103-40 SuperSprings Sumo Springs Solo Front Vehicle Suspension Kit for Trucks
Replaces SSF-103
Installation Details
This Product Fits The Following Vehicles
- 1999 - 2004 Ford F-250 Super Duty
- 1999 - 2004 Ford F-350 Super Duty
- 1999 - 2004 Ford F-350, 450, and 550 Cab and Chassis F-350
Video of SumoSprings Solo Custom Helper Springs - Front Axle
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for SuperSprings Vehicle Suspension - Front Axle Suspension Enhancement - SSF-103-40 Review
Speaker 1: Today, we're taking a look at the Sumo Springs custom helper springs for the front axle. This product fits a 1999 to 2004 Ford F250 and 350 Super Duty, as well as an F350, 450, and 550 cab & chassis. Now, to ensure that this is a fit for your vehicle, you can always use the vehicle fit guide at etrailer.com. These helper springs are designed to upgrade your vehicle's front suspension offering improved driver control and comfort, so they're really gonna help when it comes to supporting heavier front end loads.That's gonna help keep your vehicle level front to back. It's gonna help absorb bumps and road shocks and it's gonna help minimize that sway. Now, these do feature progressive load control.
What that means is that these springs will compress according to the weight of your cargo, so for lighters loads, the springs compress easily at first for soft engagement and a less bumpy ride. Heavier loads, they compress by as much as 80% from maximum support.The springs do work independently from each other to compensate for off-center loads, which again is gonna help reduce that body roll, especially during sharp turns or during heavy or strong crosswinds. They're made from a durable micro-cellular urethane. They work in temperatures ranging from -25 degrees Fahrenheit all the way to positive 200 degree Fahrenheit, and the strong material's designed to resist damage that's typically caused by oils, road salts, and UV rays.With these, you'll notice minimal later expansion, so that means these springs compress vertically instead of off to the side so they aren't easily damaged when operating in tight spaces. Another neat feature about this system is that it's completely maintenance-free, so there's no tubing to run or air pressure to monitor like when using air springs.
It's a simple no-drill installation. It comes with the mounting plate, comes with your hardware, detailed installation instructions. It uses pre-drilled attachment points on the frame of the vehicle. The springs are included, obviously, and the product's made in the USA.Weight capacity at 50% compression is 1000 pounds. Just always keep in mind that the Sumo springs will not increase your vehicle's weight carrying capacity.
That's gonna do it for today's look at the Sumo Springs custom helper spring kit for the front axle.
Customer Reviews
SumoSprings Solo Custom Helper Springs - Front Axle - SSF-103-40
Average Customer Rating: 4.7 out of 5 stars (2235 Customer Reviews)
1,000-lb Capacity. Upgrade your vehicle's front suspension with these maintenance-free helper springs. Sturdy microcellular urethane springs cushion bumps and help support a heavy load to level your ride and minimize sway. No-drill installation.by: Trevor08/29/2019
Easy Install, I installed the front & back ones due to a heavy bale bed install & front replacement bumper. The front ones stiffened up the ride quite a bit but all have held up very good so far.
by: Jeff 09/30/2021
1999 Ford F-250 Super Duty
Put these on the front of my 99 F250 and they make it ride like a new truck!!! Awesome
by: Todd 08/26/2021
2002 Ford F-250 and F-350 Super Duty
by: Jeremy01/04/2023
I installed Sumo Springs on our 06 Xterra right after we bought our Casita 17' trailer. The back of the X squatted a bit more than I liked. I had also noticed before some tendency to bottom out if the car was full of people and stuff. These ingenious devices are a perfect solution for me! They are about 3/4" clear of being engaged with the axle when unloaded, so the ride is not overly affected, but progressively take up some of the weight when the back end starts coming down with load. It now sits very nicely with the trailer connected, no weight distributing hitch and stuff in the back, and no more bottoming. We've put a good number of miles on the X in the last year, towing and not towing, and they are still doing the job.
I should note, the back of my Xterra is lifted about an inch with AAL springs. If that were not the case, the Sumo Springs would be engaged all the time. That will vary with vehicle.
I will also note that they are non-adjustable, unlike airbags. I kinda like that, I didn't want to mess with adjusting air pressure and such. But once they do start kicking in as one or both wheels travel, they do stiffen it up quite a bit. I mean, there's no way around that; you can't take load without stiffening the suspension. As such I think they inhibit upward axle articulation a bit when 4-wheeling, but for us that's not a big deal. Since they do not connect to the axle, they don't affect downward articulation at all.
The pics are shortly after installation, one with the car unloaded, and two with trailer and gear loaded up.
by: Tony04/08/2023
Very easy installation in about 20 minutes. Very ingenious concept as opposed to bolt on leaf style helper springs
by: David03/21/2023
I believe it’s going to be a great addition to my truck when pulling our RV. Looking forward to a smoother, more even ride. I left the 2x4 blocks in overnig8ht and drove around to ensure a good seat for the springs.
by: Dan08/01/2023
These Sumo Springs were easy to install, even for a 70 year old guy. I tow a 7,000lb camper and even tho I have a nice WDH I still had som sag on my Tundra. These helped level it out when towing and got rid of “some” of the bounce. They were really a godsend when I overloaded the bed with about 2,000lbs of pavers. That weight squished the Sumos significantly but the truck drove and rode great. Better and less expensive than air bags.
by: Thomas07/09/2022
The SumoSprings Solo came to the RV Resort today. I installed them on my Titan SV today in less than an hour. Only drove 10 miles with them and they are what I was looking for. In my opinion it was a needed upgrade and thumbs up!
by: William01/13/2024
I have had these on my Jeep Gladiator for over a year now and I still like them. Sumo Springs really help with sag when towing my Scamp camper trailer and when the truck bed is loaded with stuff. When it is cold outside they are stiffer and I can feel when they hit the stops on hard bumps. Sumo Springs are a very easy overload spring option with factory lift.
by: Kenneth02/22/2023
Gave it 5 because of ease of install - note they use SAE threads 9/16, truck frame and oem is metric 15mm wrench. Makes no difference but don't use oem nuts on spring. I installed all shims supplied and this left about 3/4" gap so hoing its the best for my needs. Easy to reduce if needed.
by: Zach01/24/2024
While these worked great for the first few months and helped level the load, they have now become deformed and squished out of shape permanently. We have a slide in camper that is on the truck for only for trips otherwise the truck is unloaded and off the bumps. I did not expect them to deform so much, and so easily after only a year of use.
by: Curt03/16/2024
Fairly simple to put on but need to work around the brake lines and bed cross beams. I haven’t tried it yet with weight. I have enclose pic of drivers side. Maybe can’t tell from the pic but there is space and flexibility around the lines around bolt.
by: Darryl 03/06/2023
Straight forward, simple, replacement for OEM springs. These springs make contact with the lower arms all the time and definitely help dampen the bounce effect from a heavier steel bumper. Any rolling effect from uneven roadways and turning is also reduced, it feels the vehicle is more stable. For my situation, this is the first step to take before considering replacing shocks, etc., and is very economical. I'll give it more time, but I believe this is all I'll need to do. Thanks etrailer! Quick shipping!
by: Preston08/22/2022
Very impressed. Stopped the Tacoma lean. Also helped with the trailer. I do use a distribution hitch I bought from etrailer. Just bought the sumo spring for other applications. Those little bitty factory bumps where junk. These help with lean, and off road hard bounce.They are great.
by: Roadtrek Installer01/04/2022
First off, these won't fix worn out suspension components, they are designed to improve ride quality by reducing sag/porpoising, especially on heavier vehicles.
Our 2010 Roadtrek 210P (75k miles) is a great rv but essentially a big heavy tub going down the road. Has the tendency to lean and wallow front to back. New shocks and all suspension is good, as mentioned make sure that stuff is all in good shape.
Pics show the oem stops vs the SS stops. Big difference - you may assume ride gets harsh but not the case. The oem stops were very tired and didn't do much. The preload on the new SS stops is just about perfect - any weight changes are very progressive which takes the harshness out of the ride. I didn't really see any change to ride height either.
Road manners are improved, there's a bit more resistance to lean, but the main difference is that the front end doesn't try to change height as readily with the back end.
Not a big deal to install. Youbdont need to pull the wheels, just turn them side to side to get to the stops. Pop out the old stops and clean the retaining cups with a wire brush and some brake clean. I used syl-glyde on the new stops to help get them into place. I also used a crowbar under the stop to push it into the cup while making sure the 4 tabs captured the top of the stop. Final step was to lower the van and give it a drive, then check to ensure the fit was good. The key here is to clean the cup first and use a bit of lube on the new stop.
Very pleased and I'll be installing SS on the back end soon. Yup, they're pricey but they are good quality with a limited lifetime warranty.
by: Louis 04/17/2023
Great upgrade from the oem jounce. Easy to install with 2 people but follow the install video and use a 1/2" deep socket with a long extension. Took about 30 minutes.
by: Kris03/16/2023
So glad I found these! Best upgrade for my Winnebago Era Touring Van. Simple to install. I only needed a floor jack to get it done. Van doesnt ride like a boat in a storm anymore. Highly recommend for Sprinter vans.
by: Stan10/30/2023
These springs are amazing! They helped tremendously pulling my landscape trailer with all my mowers. I picked up a tractor impliment that I would normally bring a trailer for, but decided to put these springs to the test. Couldn't believe how good my truck rode and handled with 780lbs at the rear of my bed! These springs have exceeded all expectations.
I will say that I initially put the spacer, but found it effected my ride to much so I pulled it. Afterwards it rides like stock.
by: Robert10/13/2023
These do not fit a 2006 ram 2500. As you can see in the
Photo the bolt holes are WAY off. It also does not sit over the axle tube. My only option at this point to use them is to make a 2nd bracket to bolt the helper too. Very disappointed.
by: Barry08/06/2020
We pull an off-road teardrop camper with our 2013 Toyota Tacoma and were looking for a little help with the rear end sag when we have that hitched plus putting some weight in the back of the truck (firewood, water, etc). Our Tacoma is lifted (2.5") but the lift kept the stock springs with an added Deaver leaf to help with the notoriously soft Toyota springs. However, with the shell and ~300 pounds of weight in the back, it still sagged, especially with another 250 lbs of tongue weight from the trailer. The Sumos have eliminated that sag, even with bigger loads in the bed, eliminated body roll (also notoriously bad with Tacomas) and didn't destroy the ride for day to day driving. There might be a slight bit more stiffness when hitting speed bumps, but definitely not bad at all. If anything, I would say it IMPROVED the ride and handling.
The springs themselves were simple to install, less than half an hour start to finish. Some reviews have said they were bumping the frame after installing but we had about 1/2" gap on both sides. The only "specialty" tool would be a torque wrench capable of 90 lbs to get it to spec.
We considered Firestone air bags but after talking with the reps at e-trailer, we decided on these and couldn't be happier. Reasonably priced (half the price of air bags), no maintenance, great customer service...can't argue with anything at all.
by: 01/31/2021
2015 Frontier Crew cab Desert Runner (purchased the yellow Sumo Springs). Easiest install ever! 18mm deep socket and long breaker bar for breaking nuts loose. Removed factory bumpstop, install sumo bracket and retighten U bolts to 58 foot pounds. After installing both brackets, lifted back of truck up 4 inches to install sumo spring with blue lock tight on bracket bolt, tighten sumo spring onto bracket and lowered truck off the jack. Overall it raised the back of my truck bed 1 inch. Ride is stiffer with no bed roll in the turns. Loaded my 24 foot travel trailer with load leveler- equalizer bars and gained 3 inches (less “squat”.) Truck is level now vs nose high (without the sumo springs). Definitely an upgrade that was needed in 2015 when I first bought the truck!!!
by: Stephen01/01/2023
Just installed the Sumosprings on my 2022 Tacoma,easy install, took about a hour.Truck rides the same with no load on it and will see how it does next time I tow the trailer.Shipping was fast and well packed.
by: Sergio12/08/2023
I had to loosen the stabilizer bar in order to install the springs. The stabilizer bar is very tight to the springs. I will be able to see after some driving how much stabilzer bar rubs on the springs. The install was on a 2022 Sprinter 2500.
by: Richard06/02/2021
Very straight forward installation. Simple. very noticeable difference under load. Towing with the gooseneck also an improvement, looking forward to the longer road trip test. So far pleased with the product and results
by: Marvin 03/16/2024
This is what was needed to keep the truck level when the 5th wheel camper is attached. Works great better ride. 22Chevrolet HD DURAMAX. Camper is a 40 ft. 5th wheel
25
2150
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See what our Experts say about this SuperSprings Intl Vehicle Suspension
- Recommended SumoSprings For the Front Axle on a 1999 Ford F-250I had the SumoSprings Solo Custom Helper Spring # SSF-103-40 measured and it will be 5-1/2 inches tall from the bottom of the spring to the top of the bracket. The blue # SSF-103-40 will also measure the same as the black # SSF-103-47. Deciding between the two will depend on how much support you need. Between the two, however, I would go with the blue # SSF-103-40. This will affect the ride less than the more heavy duty black version. If you are carrying a lot of weight and need the extra...
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