To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
When hauling or towing makes the rear of your vehicle sag, these helper springs step in to keep things level. With up to 2,800 lbs of support at 50-percent compression, they help balance the load across both axles so your front tires keep solid contact with the road. The improved weight distribution means steadier steering, better braking, and a safer, more comfortable drive when the bed or hitch is loaded down.
Bumpy roads and uneven loads can make every mile rougher than it needs to be. These microcellular urethane springs use a progressive load control design that compresses easily with light loads for a smooth ride, then firms up as the weight increases. That means less bounce when empty and dependable support when fully loaded. They also absorb shocks and vibration to keep your ride comfortable mile after mile.
When turns get tight or loads sit off center, these springs work independently on each side to help counter body roll and sway. The result is a more stable feel through corners, curves, and sudden maneuvers. Even with uneven cargo, you stay in command instead of fighting against a rocking or leaning vehicle.
These springs are made from microcellular urethane that resists abrasion, oils, road salt, and UV rays, performing reliably from -25°F to 200°F. They compress straight up and down with minimal side expansion so they won’t rub against nearby parts in tight spaces. With no airlines, compressors, or pressure adjustments to worry about, they’re completely maintenance free—just solid suspension support that’s ready for work whenever you are.
Getting extra suspension support doesn’t have to be complicated. The kit installs without drilling, replacing your factory bump stops using straightforward hardware. It’s an easy upgrade for anyone who likes doing their own setup and wants dependable performance without extra maintenance or adjustments.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Won't know until i get them installed
Absolutely awesome
Does what it is suppose to
But rides ruff
Was very happy with quality and the product has worked perfect.
Josh helped me tremendously on proper installation upon my request
After researching several other companies finally you was the only ones who could get me the part I needed thanks
I was surprised at how fast my order was shipped to me I will make sure too order from you people again
I put them on my '15 chevy 1500.they support the extra weight of my 24' enclosed car hauler very well.they do make the rear of the truck ride a bit stiffer but I'll take stiff over squatted any day
Easy to install nice design
Could you please put the instructions in?
Yes it is a simple job but the instruction would help with the details.
Like, what to do with all those washers.
Thank you
I put these on my 2012 Silverado 1500. With my heavy trailers, I was having problems with bouncing and stability. These fixed all of my issues. The truck drives great, even pulling my boat and trailer which are close to 6,000 pounds. The best part is that they don't effect the ride for daily driving.
I haul my side by side in my truck and sumo springs make a huge difference with that much weight! Very easy to install.
Have not installed the product yet. I'm sure they will function as advertised.
I've been extremely pleased with etrailer to date. Every order I have placed is processed efficiently- and quickly. ( TNX Kelsey S. )
Follow up on the delivery and shipment is outstanding.( Kelsey S. again ). I am a real human- and buying truck parts on-line can be touch and go. These folks are the real deal.....human like.:)
Do not hesitate here... I highly recommend e-trailer.
Dick V. Coeur d Alene ID
I had limited knowledge about this type of product and wasn't aware of the options.
I purchased the yellow but think that the blue would have been a better fit for my needs.
Now I have to switch back and forth to stock bump stops
They are great with the slide in camper on the truck but way to much with it off.
These literally took 30 minutes to install. I did install them with the wheels off and then installed the super springs as well. Towed a 8K lb bumper pull 900 miles after installation and they combined with the super springs transformed how my 1/2 ton towed. 2017 GMC Sierra 4x4. Fit was excellent and quality was good, USA made a definite plus.
This set was too firm for me. The pickup rides too rough with them. Maybe the 1000 lb set would have been better. Anyway, I’m trying to take them off but the threaded stud just spins with the nut so I can’t get them off! Not sure what to do next.
As far as load carrying capacity, with 1500 lbs. in the bed the rear didn’t go down hardly at all.
Took most of sag out of hauling my travel trailer
Installed them today but, haven't put a load on them yet. Drove around with them and am excited to get my trailer hooked up. They are no joke. I will be pulling almost 9500 lbs with my gmc 1500. The truck does great the handling needed some help.
Put these on my truck and made a big difference in towing our travel trailer.
I have a 2020 Silverado 1500 that I tow a 30 foot long 6500 pound dry travel trailer with. The stock suspension was a little soft and bouncy which made towing a bit of a white knuckle ride. I ordered the SumoSprings in hopes of helping this and I must say I think they did the trick. The install wasn't as straight forward though as the supplied spacers were not thick enough to properly space the plate that holds the spring far enough off the frame to clear the factory welded cup. Lucky for me I work at a machine shop so I turned a couple of new spacers out of aluminum the proper thickness which in my case was .700 thick compared to the supplied 1/2 inch thick. In order to use the supplied spacers I would have to rotate the mounting plate into the opening of the welded cup which put the springs in the wrong location. After all is said and done I towed with it this weekend and it was night and day. Extremely happy with the ride now and if it weren't for those spacers I would have given 5 stars. The truck still rides close to factory unloaded which is what I wanted and the springs really only come into play when the camper is attached. Nice product otherwise!
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