SumoSprings Solo Custom Helper Springs - Rear Axle
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2000 Chrysler Grand Voyager
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2000 Chrysler Grand Voyager
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When trailers or heavy gear weigh down the back end, steering and braking can start to feel unpredictable. These SumoSprings Solo helper springs add up to 2,800 lbs of rear suspension support at 50-percent compression to keep your ride level and steady. They cushion bumps, help your factory suspension handle the weight, and keep your headlights aimed where they should so you stay in control even with a full load.
A light haul or a heavy trailer shouldn’t feel the same, and these springs know the difference. Their progressive load control lets them compress easily for softer engagement on lighter loads and firm up as weight increases. That means less bounce when empty and solid stability when fully loaded, all with smooth contact that feels more like a shock absorber than a jarring bump stop.
When a curve or uneven load pushes one side lower than the other, each SumoSpring works on its own to keep things balanced. This independent action helps cut down on body roll and sway so your vehicle stays planted through turns, crosswinds, or uneven driveways. The result is a more controlled, predictable ride whether you’re towing or hauling gear.
These high-density microcellular urethane springs hold up through oil, road salt, and UV exposure that can break down other materials. They perform in temperatures from -25 F to 200 F and compress vertically with minimal side expansion so nearby parts stay protected even in tight spaces. With no air lines or pressure to monitor, they’re completely maintenance-free once installed.
Getting better load support doesn’t have to mean tearing into your suspension system. These helper springs are custom-fit and bolt on with no drilling required. Once installed, you’ve got reliable rear suspension support that’s always ready—no adjustments or maintenance needed before your next tow or haul.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
I still have alot of sag when towing. The ride is fine but doesn't really help with sag as much as the Tembren but ride better than the Tembren
Great people great company. Very friendly and professional
They were very easy to install. Less than 15 minutes. Good fit
They didn’t help with the squat when I hooked the camper as much as I had hoped for. I had hoped for a couple inches, I got about 1”. It does help with bounce when going over dips and bumps, making the bounce stop quickly.
They helped like they should with a loaded trailer. They do make the ride a little stiffer unloaded. They are so easy to install I may switch them out to the factory bump stops when not towing.
I installed these on a 2026 Ram 1500. I had the Timbrens on my 09 GMC Sierra 1500 and they definitely made the truck feel like you were driving a 3500. These Sumo Springs still give a change to the ride quality over the OEM feel but no where close to what the Timbrens were like. They only sit a 1/2" off the axle so you feel them engage but again nothing huge. The thing that is nice with these is you can remove them and install the OEM bump stops in less then 5 mins. Same with installing them. So my plan is to keep swapping them out as needed. You will need to jack the truck up slightly to get them in and out. No tools requires beyond the jack. Would definitely recommend if you tow occasionally. For reference my trailer is a 16ft enclosed and with a 750lb tounge weight I dropped 2 3/4" stock. With the Sumo Springs I only dropped 1 1/2". The control with them in is what I enjoy the most. Nothing like that feeling of hitting that huge dip on the highway and wondering if your going to bottom out. With the Sumo Springs is solid and no bounce.
Etrailer was awesome on helping me choose the correct Sumo Springs for my truck for what I was pulling!!!
Ease of installation. Once they were assembled, 5 minutes oe bump stop removed and new sumo springs installed. I will follow up when I tow my travel trailer.
Stable and smooth ride.
Work great, truly help RV roll…
I received the item one and a half hour prior to darkness. I was able to put them on (with [online] help) and drive around the area just prior to darkness. Great ride and noticeable comfort change. I applied the fronts about three months ago. Transaction was smooth and flawless.
They worked pretty good but have settled kinda. The load use to level now it's not quite level.
Excellent customer service as always!
These Sumo springs are just what I needed to keep my RV from rolling so much around corners and in wind. I would have given it 5 stars but the 4 1/2" bolts were not long enough to go through the frame and use the 1" spacer blocks.
(1) Great customer service - quick response times and more than happy to help
(2) Fantastic product - It irritates me that these aren't standard on motorhomes; what a difference from the stock springs!
Finished installing today, so far so go od.
Perfect transaction. Very fast order processing and arrival. Great communication.
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