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SuperSprings SumoSprings Kit

  • Regular Price: $119.30-845.50
  • Our Price: $81.00- 574.00
  • Shipping:FREE SHIPPING
  • Rating: (5)
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  • The SuperSprings SumoSprings Kit provides "airless airbags" to get the best ride out of your truck, camper, or work vehicle
  • Available in front (for use with plows, winches, and other front-mounted accessories) and rear (for use in towing, hauling, and other heavy-load capacities) applications
  • Innovative "airbags" made of thick, high-quality polyurethane: no actual air inside these springs, so no risk of malfunction do to cutting/popping/tearing
  • High compression and release rates: up to 80% compression and 50% release, depending on application
  • Durable material: tested in harsh conditions for ultimate cut resistance, low-temperature flexibility, and underbody environment integrity
  • Smooth load engagement, reduced wobble and body roll, firmer handle and control
  • Installation difficulty varies by application: larger vehicles may require drilling, smaller ones feature "no-drill" installation
  • Made in the USA
  • 2-Year Warranty

Many air springs and "airbags" can cause your vehicle's suspension to malfunction with the slightest pop or tear, making for a massive headache and a costly repair. The innovative SuperSprings SumoSprings Kit, on the other hand, mimics "airbag" design without using any actual air, maintaining the ultimate in structural integrity.

Leveling, better handling, sway control, body roll elimination: all of the above come by virtue of using this revolutionary system. Rather than attach a system susceptible to malfunction and leakage, the SuperSprings SumoSprings Kit does not use any air, whatsoever, to balance your suspension. A revolutionary polyurethane construction that has been tested to extremes of over 200 degrees and below -40 cannot break, pop, or overstretch. It can, however, stretch, from 80% compressed to as much as 50% unloaded height, depending on the particular application. For use with trucks, motorhomes, and commercial vehicles, these front and rear springs are the perfect solution to preventing load sag and improving your rig's overall ride when under pressure and working hard.

Don't take a chance on a spring that can break or malfunction at the worst possible time. Put your faith in something guaranteed to work in any imaginable conditions by using a SuperSprings SumoSprings Kit. Backed by a 2-Year Warranty.

SuperSprings SumoSprings Kit Customer Reviews

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4.3 of 5

Average Install Time: Under 30 minutes

who drives a Ford Transit
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Awesome product. Product was recommended by other expediters. Simple to install, I would recommend to any person to do.

Install Time: 30-60 minutes

who drives a Chevy Silverado
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The design flaws need to be addressed by the sumo springs engineers before many more products are sent out into the marketplace. First off, I am not an amateur mechanic by any sense of the term. I was born and raised in a gas station 60 years ago. In the 1980s I served apprenticeships in a Fortune 500 company as mill-rite, welder, machinist, and electrician. So I am always hopeful as I review products before I purchase them that when I see the phrase “custom fit” or “bolt on installation” that the engineers and designers of that product did their homework and hit all the marks of conforming to requirements. I experienced numerous flaws in design and I am fortunate enough to have a complete metal working shop in my garage. Until sumo springs 2.0 is introduced, buyer beware! Some of the issues I experienced during installation on my 2002 Silverado 2500HD, included undersized pressed in studs in the top section of the sumo springs mounting plate that replaces the factory jounce mounting plate. These studs are much smaller diameter than the factory and may under the rigorous job of providing stability for a loaded truck, move around and or shear off under the right circumstances. Then there’s the fact that some of the studs turned in the pressed fit during installation and tightening of the provided lock nuts. So I knocked them all out and drilled and tapped up to the correct factory size and screwed in new studs and spot welded in place forever more. The bottom section was far more difficult to install. On the drivers side there is a factory installed bracket welded onto the drive axle and cutting a notch into the sumo springs base plate to allow it to sit flush on the axle pad was necessary. Then the fact that the slide adjustment provided for the bottom section of spring is only backwards from the axle on the bottom plate and not forwards as needed. So I had to use my horizontal metal mill to lengthen the chambered slot forward 1 1/2 inches to be able for the top spring and bottom spring to align. Last complaint is the bottom mounting bolts are entirely way too long. Shorter bolts are less expensive and lighter for shipping and most people do not have metric deep well sockets to tighten the bolts into place. The extra 1 1/2 inches were cut off of the bolts so not to hang lowest of all the other axle bolts such as leaf springs and brackets. Now for function; before installation my rear bumper dropped 3 3/4 inches while lowering my fifth wheel onto the hitch. After installation of the sumo springs the rear bumper dropped 1 inch before contact of the top section of spring and the bottom section of spring and another 1 1/2 after contact for a total of 2 1/2 inches of travel, actually saving 1 1/4 inch’s of travel. Most notably improvement in function was that side sway was reduced by half that is caused by side wind against the tall fifth wheel and wind gusts caused from tractor trailers passing me on the interstate. Control is increased dramatically in the most critical time of traveling on long declines while on winding roads. While the ride is much stiffer the springs act smoothly in their transition during dips in the road. Which amounts to the number one safety aspect provided by this product, and that is the reduced probability of snapping a factory leaf spring from a dramatic jolt from that unseen pothole or railroad track crossing that we all have hit in our travels.

Install Time: 2+ Hours

who drives a Workhorse Motorhome
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Customer service is great. I could have bought these at 12 different places for the same price but the reviews of customer service was good.

Install Time: Under 30 minutes

who drives a Dodge Ram 5500
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Does not come close to touching axle.

Install Time: Under 30 minutes

who drives a Mercedes-Benz Sprinter
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Pretty easy to install--minimal tools needed. Just a jack to raise the rear of the vehicle a little to widen the space between the axle and the frame. Just a bit of twisting and pulling to remove the stock ounce bumper, then minimal to moderate pushing and tweaking to install the SumoSpring where the ounce bumper had been. Effect was moderate for what I wanted in reducing the side-to-side wallowing when driving across a driveway swale. Better than before, but not as much as I'd hoped to archive. Overall, a reasonable product and easy to install.

Install Time: Under 30 minutes