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1,000-lb Capacity. Upgrade your vehicle's rear 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:
Specs:
Towing or hauling a heavy load can cause rear 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 weight of your vehicle. 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 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 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 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.
Average Customer Rating: 4.7 out of 5 stars (2289 Customer Reviews)
1,000-lb Capacity. Upgrade your vehicle's rear 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.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.
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.
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.
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.
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.
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.
Easy to install and makes a big difference in how the truck rides when pulling our 5th wheel trailer.
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!
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.
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!
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.
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)
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.
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.
Easy installation and a very effective product. Fast shipping and priced reasonably. Highly recommend.
Exact fit
Fair price
Super fast shipping
Jim R.
12/22/2020
1Yr later, still great!
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
Would be nice to offer different size spacers. Half inch would be great.
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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