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  • List Price:
    $98.00 - $655.00 /kit
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(11 Reviews)
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    With a cord of wood loaded in your payload and a burly winch strapped the front bumper, your workhorse starts to sag like a twenty-year-old mattress. In the past, you'd have to rig up a complicated airbag system with hoses and compressors that need constant attention. Now, bolstering your suspension is a cinch with SumoSprings, the world's first "airless airbags".

    The mad scientists over at SuperSprings cooked up a cutting-edge formula of closed-cell polyurethane foam and heavy-duty additives to form the spine of your springs. This blend gives your Sumo Springs the ability to compress up to 80% and expand up to 20%, delivering a progressive spring rate. Whether you're hauling a pile of bricks or a six-pack of chubby wrestlers, SumoSprings deliver exceptional ride quality with zero maintenance needed.

    Custom engineered for a perfect fit, SumoSprings are available for the front and rear of your pickup, SUV or van. They're sturdy enough to handle harsh conditions, and most bolt directly into place with no drilling needed. Plus, they're backed by a 2-year warranty.

    SumoSprings Customer Reviews

    Average Rating

    11 Customer Reviews

    As advertised

    Reviewed by Mark Q (PROSSER, WA) Reviewed for a 2009 Toyota Tundra — May 17, 2014 6:19 AM

    I was looking for something to firm up the rear of my half ton while towing. It was OK, but I wished for a little less sag and less sway when pulling our travel trailer. I looked at overload springs and air bags and finally Sumosprings. Autoanything had the best price and they arrived quickly. I had them on in two hours and hooked up my TT. Sure enough, I gained a little more than an inch to 1 1/4. I'm happy.

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    Stable Sprinter

    Reviewed by Rodney D (San Antonio, TX) Reviewed for a 2007 Suzuki XL7 — May 05, 2014 6:34 PM

    These work great on the 3500 model when your towing a trailer. Minimizes pogo sticking when loaded and allows level cornering (lean) on switchbacks. Small investment compared to air shocks/bags - no moving parts to break.

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    good product

    Reviewed by Tom M (Hamlin, PA) Reviewed for a 2012 Toyota Tundra — Apr 19, 2014 4:40 AM

    I needed somthing that would help my suspension when i occasionally put my ATV in the bed of my Tundra. But did not want a stiffer ride for the other time when i wasn't hauling it. These fit the bill and work great without affecting the ride i have come to like.

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    Awesome! Perfect on a Plow truck and Vbox Salt spreaders

    4 of 4 people found the following review helpful.

    Reviewed by Joseph C (AURORA, IL) Reviewed for a 2012 Ford F-250 — Feb 07, 2014 7:22 AM

    I was a little unsure about these things when I first saw them. I figured I would just add the F350 spring to adjust, but these were really easy to install. I bought both the front and the rear. I have tried this on my truck with a Blizzard Plow in the front and a 2.2 Cu/Yd V=box salt spreader in the back. What A DIFFERENCE IT MADE!!! No 1-2inch drop in the front because of the 1200ibs plow in the front. The rear was sagging like crazy with salt in it, but now its PERFECT! Going to get all

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    Solved the problem

    4 of 4 people found the following review helpful.

    Reviewed by Allen M (Calhan, CO) Reviewed for a 2004 Dodge Ram — Jan 19, 2014 6:21 PM

    2004 Dodge 4x4 w/5.9 Cummins Had a problem with the front suspension bottoming (from new) with harsh road transitions at speed or large dips even at lower speed. Installed the snubbed replacement model and after 1000ish miles I'm happy to report no more problem. Pros: Install was simple and quick Solved problem Con: Ride is firmer, not objectionable but firmer Bottom line, I'm glad I installed them and and happy with the product.

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    SumoSprings are Great!

    2 of 2 people found the following review helpful.

    Reviewed by David M (COEUR D ALENE, ID) Reviewed for a 2012 Ford F-250 — Jul 03, 2013 7:00 AM

    I recently put on a after market over 400 lb front bumper/winch and noticed a bit of a sag in the front end. The front Sumosprings leveled out the truck. Also installed rear Sumosprings to keep the truck level when hauling my camper trailer. The Sumosprings also give me a little better smoother ride. I like the fact that my installation did not raise the overall height of my truck. Great product!!!

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    Perfect Fit

    5 of 5 people found the following review helpful.

    Reviewed by Benjamin W (Terre Haute, IN) Reviewed for a 2012 Ford F-250 — May 08, 2013 6:41 PM

    Super easy install. When empty the springs are about a 1/4 inch from touching. Only seem to affect the ride in a positive way less body roll in corners. when I put my 5th wheel on my truck is now level instead of sagging like before.

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    Andy from Washingtion

    2 of 2 people found the following review helpful.

    Reviewed by Larry H (GARFIELD, WA) Reviewed for a 2011 Ford F-250 — Apr 06, 2013 6:47 PM

    SumoSprings did the trick! They keep my SuperDuty from sagging in the back when pulling my 30' boat.

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    Great Performance and Peace of Mind

    9 of 9 people found the following review helpful.

    Reviewed by Normand L (Warner Robins, GA) Reviewed for a 2010 Dodge Ram — Jan 30, 2013 7:07 AM

    I was simply amazed at the difference these springs made. I'm constantly towing a 16 500-lbs fifth-wheel with my dually and with the SumoSprings installed, the rear almost doesn't sag, the ride is even better over bumps, and most importantly, it really stabilized the rear end in higher-speed curves. I love the fact that they're "install and forget," no air pressure to deal with. Of course, the downside is that the truck's rear end is a little bouncier when unloaded. Love 'em.

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    leveled out my plow truck

    3 of 3 people found the following review helpful.

    Reviewed by Amy H (ALTOONA, PA) Reviewed for a 2001 Chevy Silverado — Dec 13, 2012 12:12 AM

    I drive a 2001 Chevy silverado 2500HD and use a snowsuit mega V plow (10' With the steel wings.) This eliminated about 80% of my front sag when the plow is on. In spring I will definitely be installing the rear sumo springs. Ride is also much more comfortable when driving with and without the plow

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