SumoSprings Custom Helper Springs - Rear Axle
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2020 Chevrolet Traverse
These items fit your vehicle
2020 Chevrolet Traverse
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When you hook up a trailer or load down the bed, these SumoSprings helper springs step in with up to 2,800 lbs of support at 50-percent compression. They keep the rear suspension level so steering and braking stay predictable instead of light or sloppy when the back end sags. It’s a straightforward way to handle heavy hauling without adding air lines or constant upkeep.
Loaded trucks can bounce and jar over every dip in the road. The microcellular urethane design of these springs cushions those hits with progressive load control that firms up only as weight increases. The result is a smoother ride with less vibration and bounce whether you’re crossing a rough campground or a stretch of highway.
When a curve or uneven weight shifts your truck off balance, each spring reacts on its own to keep that side from dipping or rolling. That independent action keeps the vehicle flatter through turns and steadier when a crosswind or passing semi tries to push it around. It makes towing and hauling feel more controlled from start to finish.
These solid urethane springs don’t rely on air pressure, fittings, or hoses—there’s nothing to inflate or leak. They operate dependably between -25 F and 200 F and stand up to oil, salt, and UV exposure. Once installed, they’re ready for year-round work without adjustments or special care.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everybody. Andy here with etrailer.com. Let's take a real quick look at the Sumo Springs rear axle Custom Helper Springs. Now these have been designed to fit your 2019 and newer Chevrolet Silverado 4500, 5500, 6500, both the two wheel and four wheel drive models, and then your international Truck CV series. Again, both the two wheel and four wheel drive models. On custom fit parts such as these helper springs.
I do recommend taking advantage of our vehicle fit guide here at etrailer.com. Just input the year, make, and model of your vehicle and our fit guide will confirm if these will work for you or if we have something comparable that will work for you. So as you can see, I do kind of have them loosely assembled just to kind of give you an idea of what they're going to look like when they're put together. These custom helper springs are gonna help maintain an even balanced ride. They're gonna help minimize rear sag.
And with a sturdy 2,800 pound capacity at 50% compression for your rear suspension, you can tow heavy trailers and haul substantial loads in your truck with confidence. The Microcellular urethane springs are going to give you progressive load control that's going to ensure that your ride remains comfortable and it's gonna help cushion the shocks and dampen road vibrations. So this feature is especially beneficial when you're on long RV travels, as it's going to keep your journey smooth and hassle free. The independent action of each spring is going to compensate for off-center loads. It's gonna reduce body roll, it's gonna give you a stable and safe ride.
So this is gonna be perfect for helping to avoid lean during cornering, particularly if you're carrying a significant load in your trailer or your truck. The solid maintenance-free design means that basically it's gonna be, forget it, install it, set it up, and then just forget about it. You're not gonna have to worry about constant monitoring of air pressure or dealing with tubing. It's gonna keep your preparation time minimal and let you focus on the adventure ahead. So again, these durable microcellular urethane springs are gonna be resistant to oil, salt and UV rays.
They're gonna perform optimally in temperatures ranging from negative 25 degrees Fahrenheit all the way up to 200 degrees Fahrenheit. So whether you're driving through winter snow drifts or summer heat waves, your vehicle suspensions going to remain reliable. Instructions are gonna be included for the pretty simple installation process. You are going to get some thread tight here as well. But everything that you see here, all the hardware spacers here, and again, just kind of have them loosely put together to give you an idea what the install is going to look like. Now, again, I mentioned that these have a 2,800 pound, 2,800 pound capacity but just be aware that these do not actually increase your truck's weight carrying capacity. So you wanna make sure that you're not going over your manufacturer's recommended weight limits. Now, if you happen to have any other additional questions about these springs or any other suspension enhancement systems that we carry, don't hesitate to reach back out to us. We wanna make sure that you're getting exactly what you want and need. But I think that's gonna wrap up our quick look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.
Customer Satisfaction Score:
83% were satisfied with this product
17% of customers were not satisfied
Ratings & Reviews
Towing a trailer with these is a dream!
These springs perform as advertised. They were easy to install on my 21 Bronco and I have not been disappointed. I've pulled a trailer from Texas to Utah multiple times with my Bronco and I have not experienced any squatting. I also haven't noticed any decline in comfort of my ride. I highly recommend if your looking for helper springs for trailering.
Fixed the sag. No more bottoming out from bumps in the road. Cheaper and less complicated than air. A+ product!
They really improve the cornering, and trailer sag.
If your at all a DIY person you'll have no problem installing these helper springs.
The only reason I don't give them a five star review is that their just installed andvI want to see how they hold up.
Best customer service out there. You delivered when no one else could. Thank you!
Instructions were great, I didn't have to remove the rear wheels, I just used some 3" pieces of plywood with floor jack. The factory bolts (12mm) seemed to be better only because they had a washer as these hex socket bolts had a very small seat but I used them anyway. I wasn't sure the torque but tightened them to approximately the same torque as the bolts I removed. What worked for me was removing the lower two bolts, then slowly remove the side bolt and hold the original stops. Installing new one I needed 5mm for cushion, then 6mm for body bolts. There was sufficient locktite for two drops on all 8 bolts (good). I did this after work in the dark with a small flashlight. What worked for me is getting all the bolts into the body then tighten the side bolt almost all the way (so it could go up some more if needed, then tighten the bottom two bolts, then before finally tightening, loosen the side bolt a little (in case it needed to move), then tighten the bottom two bolts, then finally tighten the side bolt. I used what feels like about 30 ft-lbs. but no mention of torque. The instructions also told you which was driver vs passenger side, which is great to know before going under truck.
I put these on our Bronco Outer Banks to tow our teardrop off road camper. It made a huge difference in the ride and handling. Highly recommended.
I should have ordered heavier option all and all well satisfied install was ez and handling improved on my 2025 Tundra
Fast shipping! No issues.
First, the downfalls:
--Less than seven days after I ordered them, etrailer starts offering an instant rebate on them....$[XX]. I spoke to trainer before purchasing, would have been nice to know.
---Driver side bracket had some issues. Had to drill out paint on one of the holes to let the factory screw go through without stripping threads. (Quality control). Also, the driver side bracket did NOT fit easily. Took me 50 minutes of trail and error to get it to fit right. Another Quality Control issue. The passenger side took 10 minutes. Looking back, should have stopped, returned them, and reordered. Perhaps I then would have qualified for the instant rebate!
These Sumo's will be put to the test this weekend as I am hooking up the trailer and taking a small trip. If they do not, I am still awaiting a response from trainer of the30-Day satisfaction guarantee they advertise on the site. I was told they have to contact the manufacturer... While they are at it, can they clarify if the blue SumoSprings are rated at 1400 (etrailer site) or 1000 (SuperSprings International site)?
E-Trailer has been phenomenal. Communication, shipping, and price was great. Easy install. Haven’t put a heavy load on them yet, but am sure they will work as advertised. Have not noticed any difference thus far in ride quality in my ‘24 1794 Tundra.
Fairly easy to install. Says it takes about 30 minutes to install. It actually took about an hour. Fortunately, I took it to a buddy of mine shop and we used his lift. Tip remove both rear tires for easier access. Do yourself a favor and don’t attach the spacer and the shock to the bracket before install. The small side of the bracket start threat it into the frame. Give yourself enough room to turn the bracket out then install the spacer and the shock. Then continue with the other two bolts. The first bolt you put in you’ll have to hand tighten with a wrench. But if you give yourself a little pivot room, you’ll be able to install the spacer and the shock to the bracket. I bought a blue shocks, which are the shortest ones. They did help level out the truck and stopped some of forward to rear sway. Personally, I wish I would’ve bought the black shocks, which are a little bit longer. They probably would’ve performed a little bit better. But overall happy with the performance.
These are fantastic if you tow an RV get them
I just received my sumosprings for my 2025 tundra so I can’t tell how they will perform but I bought them because I have had them on my previous model tundra for about five years and they really make towing my utility trailer much better, I didn’t feel any stiffer ride on an empty truck but when loaded or hooked up to a trailer the sumo springs didn’t allow to squad as much and hard bottoming down just never happened.
The etrailer site helped me dial-in the exact Sumo Springs for our 24 Tundra, and deliver them exactly at the stated day, enabling us to keep our installation appointment with a local mechanic. We’re looking forward to our next trip pulling an Alliance Delta 252 RL. We’ve been using a BluOx load leveling hitch with 1,000 lb bars, that relieve most of the sag already, but looking to be more level with reduced vibration. I’ll update this post after getting some miles in.
Appreciate those videos on the etrailer site - very teachable.
Incredibly fast turn around, from order to delivery, super impressed! Overall, a pretty easy install on my 2023 Tundra, even without removing the rear tires. That said, it would have been much easier to access the area to install with the tires off, there’s no doubt about that, but it wasn’t impossible. Jacked up the rear end with a 3ton floor jack (just under 20in of travel on it), set my jack stands, and that gave me plenty of room to work with. A word of advice: MAKE SURE YOU PUT THE BOLT INTO THE SMALLER SIDE OR THE BRACKET MOUNT FIRST. If you save that one for last, the factory bolt and washer will catch on the top lip of the Sumo Spring, and you will not be able to get the angle needed to get the bolt in, resulting in you needing to remove the entire thing to fix your mistake. Ask me how I know this. After the install, I drove around to hit some bumps and dips, see how it felt unloaded, and honestly, I think it rode smoother than with the factory bump stops. Loading up and towing our 26ft bunk house 600mi over the next week, that’ll be the true test. So far so good though!
Just added a set of blue sumo springs to my 2024 Toyota Tacoma off-road. Picked up my new r-pod 22 foot travel trailer 3700 pounds yesterday. Headed home with a five hour trip no squat at all with the trailer on the back.
Super fast shipping. Sumo springs worked great on a trip pulling the boat to Canada.
Items bolted right up … took maybe 15 minutes to install… will update when I hook up the boat trailer and pull it for a few miles.. from the looks of these they will do the job quite well…
Good product on my 23 Bronco 2DR would not fit in the orientation suggested with the U bolt closest to the wheel on the divers side although this orientation did work on the passenger side. Would suggest most important thing is to line up with where product is going to hit frame rail. I carry a large dirt bike on a motorcycle tongue rack. With billstiens dialed up two inches (rear) it took the two inch spacer plus one of the 1/2 inch spacers included in the kit. The description should be updated because the kit does include 4-1/2 inch spacers but if you have bigger wheels or have upgraded the stock suspension then you will need to buy the extra spacers which come in 2/4/6 inch versions. The product can be used in two ways. 1) So the read end does not sag from tongue weight. If this is your goal you need the blue part spaced to just barely touch the frame. The other usage is as bump stops which can and you may wish to leave well away from the frame on a 4WD to allow wheel articulation. My goal was to eliminate rear sag when I load the motorcycle on the rack and it achieved that purpose (450 pounds).
I am only reviewing installation so far, as I haven't put them to the test towing my boat yet. However, what could be a very easy installation...maybe 15-20 mins per side, becomes much more difficult because the bracket does not allow for the use of a ratchet for one of the screws. The bump stop is just wide enough so it blocks the hex head. Only way to handle that one screw is with a traditional or adjustable wrench, and this makes the install much more difficult and time consuming. Just another 1/4 inch adjustment and you could tighten that screw with the ratchet.
Good product unfortunately it did not solve my ride issue but not at fault of the helper springs. Just bad engineering by GM. The helper springs were very easy to put on, less than an hour to put both front and rears on.
Condition: Installed
Notes: There are install marks from previously being test fitted.
Condition: Missing Parts
Notes: Item is missing 2 of part G (512277, the 2 small bolts.) Otherwise new and unused.
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