Ford SuperDuty SuperSprings

Suspension Enhancement and Vehicle Warranty

Peter Product Information 4 Comments

We wanted to provide a quick education for recreational consumers to help lead you to resources about your vehicle and product warranties.  Did you know there is a law protecting you from manufacturers voiding or denying coverage under your warranty simply for adding aftermarket products? This law is known as “The Magnuson-Moss Warranty Act.”

A consumer should have the option to unleash their “DIY” skills, just as much as we should have the option to take our vehicle to a dealership or automotive shop, to have components repaired, replaced, or enhanced as we see fit. Thanks to this particular act/law, we can! The Federal Trade Commission (FTC), validates the right to install automotive aftermarket parts without having to worry about voiding, or being denied warranty coverage.

This warranty information also brings up a question regarding our innovative suspension solutions:

What kind of modifications are made by using these suspension solutions?

Suspension enhancement products do not increase your payload capacity or GVWR. GVWR is set by the manufacturer of your vehicle and no aftermarket product can change it. GVWR should never be exceeded. Instead of modifications, think enhancements. Here is a quick rundown of what factory components are enhanced, and what (if anything) is being replaced by our suspension enhancement products.


For most applications, the front or rear factory bump stop needs to be removed before installing any of the three different styles of SumoSprings: Solo, Maxim, and Rebel. The bump stop is an inactive, preventative, component in your suspension. The factory spring (coil of leaf) is your vehicle’s suspension. The SumoSprings replace the inactive bump stop and act as a secondary spring, an air spring, an active part of your suspension.


Unlike SumoSprings, SuperSprings do not require any components to be removed in order to be installed. SuperSprings sit on top of your factory spring assembly, and support it. You do not need to disassemble or modify your original spring pack at all.

Coil SumoSprings:

These dynamic air spring inserts slide directly into the turns of the factory coil springs. That’s it! No tools, no hardware.


SuperCoils are a heavy-duty replacement. They replace the factory spring. SuperCoils are a true replacement, not a secondary spring.


SuperStops replace the original contact pads on the frame perches (if any). Sometimes the original pad is a thin piece of rubber, other times there is no pad and the overload spring contacts steel. Whether replacing original pads or adding to perches with no pads, SuperStops are contact pads for top overload springs. SuperSway-Stops help engage the spring earlier to reduce sway, and SuperSilent-Stops prevent raucous noise in transportation applications.

Trailer SumoSprings:

Trailer SumoSprings do not replace any original components. They mount to the factory trailer leaf spring assembly, and create an air spring cushion between the frame and suspension.


Comments 4

  1. I’m considering installing the sumo springs on my 2018 4×4 Tundra. We have a 6500 lb travel trailer with about 850-900 pound tongue weight. When we tow we also have stuff in the bed of the truck. We probably use our trailer about 10 times per year including one long trip which probably averages around 2000 miles round trip. I want to take out some of the squat while towing but at the same time not negatively impact the ride quality while not towing. Will these accomplish those goals? If so, what color/load capacity would meet our needs?

  2. Post

    Hi Brian,

    Peter with the service team here, thanks for your questions! The SumoSprings Solo kit is what we have available for your truck and yes, they will help! Because we want to ensure the best ride quality while unloaded AND loaded, I recommend to take a loot at part number SSR-610-40.

    See here:

    This Solo kit will replace the original bump stop, as it is much taller to assist with reducing sag and sway. Take a look, and let me know which questions you have!

  3. I have a 2019 Winnebago Travato and I’m considering installing Sumo Bump stops. what is the difference between the SSR_313-54 and SSR-313-47 ? I will not be doing any offroad trips. However, I’m looking to gain 1+ inch in height. Is that possible? with either Sumo as mentioned above. My rear wheels are supporting 4, 120 pounds according to a scale reading. I will not be towing any vehicles or trailers.
    Both the Sumo’s look the same height wise. I understand the Capacity at 50% compression.
    Will I get the same sway retention using either Sumo? Which Sumo will give me a smoother ride and will I achieve the 1’+ Plus height.
    The big concern is the low clearance from Winnebago’s Onan Generator location.
    Please advise!

    1. Post

      Hi Robert,

      Thank you for checking in; great questions!

      Both the SSR-313-47, and SSR-313-54, are the same height at 7 inches tall before installation (5 inch SumoSprings plus two 1 inch spacers for each side). They won’t lift the vehicle from stock height, but will definitely help reduce the amount of sag the vehicle is experiencing. As far as sway control, the -54 (yellow) is going to help more as this density contains a higher spring rate which doesn’t allow them to compress as easily at the -47 (black) density. The front CSS-1195 ( and rear SSR-313-54 ( are actually two of our most popular kits because of the Winnebago Travato on the ProMaster. Take a look at this quick video our team out together to show the Winnebago team actually installing these kits:

      Let me know if you have any questions!

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