SumoSprings Solo Custom Helper Springs - Front Axle
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1991 Ford Explorer
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1991 Ford Explorer
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A heavy bumper, winch, or front-mounted gear can push your suspension down and throw off handling. These SumoSprings Solo Custom Helper Springs add up to 1,800 lbs of support at 50-percent compression to keep your ride level and steady. They help your suspension handle the extra load so braking and steering feel consistent, and the vehicle stays balanced without bottoming out under weight.
The microcellular urethane springs compress progressively to match the load you’re carrying. With lighter loads, they engage softly for a smoother ride over bumps and rough roads. As weight increases, they stiffen up to provide more support—up to 80 percent compression—keeping things stable and comfortable whether you’re loaded or not.
Each spring works on its own side of the vehicle to even out off-center loads and reduce body roll in tight turns. That means less sway when a semi passes or when you drive through uneven ground. The springs help keep both sides steady so your handling feels planted and controlled no matter where you drive.
These microcellular urethane springs stand up to oil, road salt, and UV rays without wearing out. They work in temperatures from -25 F to 200 F and compress vertically with minimal side expansion so nearby components stay protected. No air lines, no pressure checks—just install them with a simple no-drill setup and enjoy long-lasting suspension support without maintenance.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Sumo Springs really helped with the bumps in the front of the 2019 Ford E350 Winnebago! Very happy with them. Super easy install even though a bit awkward to reach the spot.
Very easy installation. Would be nice if they were about 2” longer to get contact sooner but they were a good replacement for the hollow stock bump stops.
Springs arrived on time without any damage. Installation was completed in about a half hour with a 10mm socket, 3” extension and ratchet to remove the stock bump block on our Ford E450. Then just thread the Sumo Spring in place of the removed block. This was the easiest upgrade I’ve done so far.
Super easy to install maybe 30 minutes for all 4
Fronts were done from above with wheel turned full right or left and load off that side with jack,rears jack to take off load only used large flat head screw drive to remove replace
improved side to side roll/sway ride is firmer went with the black capacity maybe yellow on rear if loads increase
these look like the perfect thing for my tired old helper springs, I put SumoSprings on my rear axel of my Jeep a year ago and the have made that ride much better hoping for the same with these.
Installed Sumo Springs on my 2019 Chevy 4500 motorhome, I was looking for ride improvement without breaking the bank. These days so many products are marketed well but never match the performance that was promised. That is not the case with Sumo Springs!!! I am very pleased with the ride improvement, sway is gone when transitioning from different levels of pavement and the shock of bumps is 50% better!! Installed myself on front and back in about 1 hour, front ended up about 3/8” higher after a couple days, got front end alignment done but didn’t need any adjustment. Finished a 400 mile road day today and my wife and I are very pleased. Excellent product!!
What most new RV owners don't know is that the chassis that their new mobile home sits on barely has the equipment to support that new home. Adding SumpSprings is going to improve your ride and help support the structure of your home. FYI, use a jack on the leaf springs to help align the holes on the bracket to the ones on the frame.
I’ve made several purchases from eTrailer and have been satisfied every time! Recently bought front and rear Sumo helper springs. Installation was a breeze. They have helped reduce the side to side sway caused by wind, freeway traffic and rough roads. So far im very happy with them.
Installed front Sumosprings yesterday but have not driven vehicle yet. The front have full contact with the A-frames.
Should help with van side-to-side sway.
Shopping around for a set to install on the rear as well.
2006 Dodge Ram 3500 SRW 5.9 Cummins 4x2
Original bump stops were dry rotted and almost not existent. Very easy install. Took about 30 minutes. The Sumo springs are engaged all the time. This may be due to the truck being a 4x2? You can feel the front end is stiffer over bumps and dips of the road, which I feel is ok and not extreme. Towing the 5th wheel I feel the truck handles better than before.
Ordering and delivery was quick and easy. The SumoSprings really improved the ride of our C Class RV. The only problem was one of the springs had cross threaded threads so I had to tap the treads to make it work. They were delivered in a plain brown box with no manufacture information or instructions. It makes believe the were a returned item, the previous purchaser couldn't get them to work either. I just had the tools and skill to correct the problem.
I recently purchased/installed SumoSprings for the front axle on my 2018 Thor Freedom Elite 28FE. Having previously purchased/installed SumoSprings for the rear axle I have to say that the overall improvement in ride/handling has exceeded my expectations. As always, etrailer provided valuable insights and prompt inquiries to my questions. The level of in-depth product knowledge amongst the etrailer staff is second to none. Thanks etrailer!
Product is great, exceeded my expectations. Install is simple and straightforward. It’s a night and day difference in both the body roll and the handling small bumps all the way up to off-road conditions.
I have a Workhorse W22 chassis. I installed steering dampeners and HD sway bar to reduce the "loose" steering. After installing the SumoSprings Front Spring helpers on the front end, 90% of the looseness on the front end disappeared. It is now a pleasure to drive. Very little sway from passing trucks and cross winds. I will be installing a set on the rear this year.
Good
Product appears to dampen front end response so far to hard bumps. I definitely rate the install on these things LOWER than POOR. The instructions lead you to believe that you can simply twist and push these in place. This is not the case for the home mechanic with a floor jack. I had to take the truck to a mechanic and he threw all kinds of muscle, people, pry bars, and other items at these to get them to seat properly. Once in, they appear to function as intended. I would suggest you consider the fact that you may need outside assistance when installing these things.
Installed in a 2019 3500HD Chevy Dually for a little extra support with an upcoming bumper. These do help dampen with potholes and railroad tracks. Takes the sharpness of the hit out which is nice. Big props to the folks who can install these in 30 minutes. Old ones were a nightmare coming out and the first two Sumos not much better. Ended up putting them in the, freezer for a while which seemed to help on the next two. Quality product though, and Etrailer is great as usual.
Easy installation, very good performance. no worry about air line or compressor failure.
I bought the sumo springs for the front of my 16 2500hd Duramax. The install was really simple Chanel lock pliers twist and pull old ones out and a little glass cleaner and a small pry bar pushed new ones right in. Went with the sumo springs over the timbrens cause I didn’t want the truck sitting on the stops and the sumo springs still have about 1 inch before they touch control arm so normal ride isn’t affected only have the added support when I install my V plow
Very satisfied with etrailer and the sumo springs thank you
Installation in a 2022 Sierra 2500HD was easy, used large Channel locks to remove factory, new ones popped in by blocking them with wood wedge while vehicle was jacked up and releasing jack quickly so all weight would come down at once.
Only have aprox 100 miles on new Bump Stops but ride feels smoother as they are engaged at rest, unlike factory that engage on bumps. Need more miles to fully review.
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