Reduce Motorhome Sway with SumoSprings!

Reduce Motorhome Sway with SumoSprings!

Peter Product Information 8 Comments

Sway is one of the few negatives when it comes to owning a motorhome. Unfortunately, it is a common issue, especially for the full timers out there. So what typically causes sway and what are some benefits to reducing it?

Some instances include:

  • pulling in and out of driveways
  • larger trucks zooming by on the freeway
  • driving over uneven or unpaved roads

Some even experience sway while parked!

Reducing sway improves the overall comfort of the coach, preserves original components, and helps keep precious goods like that forty inch Smart T.V. mounted inside, in one piece. However, most tend to forget how much safer a ride across the country would be, with minimal sway. Whether that ride is in a Class A built on a Ford F-53 chassis, Class C on a Ford E-350/450 chassis, or Class B motorhome on a Sprinter 3500 chassis, look no further than SumoSprings!

One of the primary functions of SumoSprings is to reduce the sway associated with motorhomes. We manufacture three different kits that all aid in sway reduction:

  • the Solo,
  • Rebel,
  • and Maxim.

The most common kit recommended for F-53 based Class A gasoline motorhome applications, is the Maxim Kit. The Maxim Kit is a one-piece unit, attached on top (to frame) and bottom (to the original equipment leaf spring assembly). The design of the Maxim Kit leaves no void between the frame and the axle, which allows for constant engagement, 100% of the time. Whether the coach is unloaded, fully loaded, parked, or in motion, the SumoSprings are ready to combat sway. The smooth, controlled engagement of the SumoSprings provides progressive resistance, while simultaneously limiting sway. As with all of our SumoSprings, this happens automatically, working in conjunction with the factory spring pack.

When your motorhome sways, the Maxim kit on the leaning side can compress up to 80% of its original body height, without excessive lateral expansion. As mentioned before, the compression causes progressive resistance against the weight of the motorhome, reducing the amount of sway one would normally experience. The Maxim kit on the other side can vertically expand up to 50% of the original body height, with full memory rebound. This allows for a different type of resistance. Instead, the expanding SumoSprings retract the leaning weight almost in a pulling action, compounding the amount of sway reduction. These properties, along with other characteristics of the design, are what limit unwanted sway, making your driving experience much safer, and much more enjoyable.

Not to mention getting some color back into your knuckles!

Comments 8

  1. I am interested in sumo springs for my 2010 Tiffin Allegra 35QBA class A gas motorhome. Not sure which ones to order is this something you can help me with?

  2. Hi Jeff, thanks for your interest in our SumoSprings. The part number will depend on your coach’s GVWR. I think the 35QBA is 24k, but you will want to confirm. Here are the part numbers for all GVWR classes:

    Front:
    SSF-170-40-2 2010 Tiffin 16k-18k
    SSF-170-40-2 2010 Tiffin 20k-22k
    SSF-173-40-2 2010 Tiffin 24k-26k

    Rear:
    SSR-184-40-1 2010 Tiffin 16k-18k
    SSR-180-54-1 2010 Tiffin 20k-22k
    SSR-183-54-1 2010 Tiffin 24k-26k

    You can pull this info up using our Year | Make | Model search. If you have any questions, give our team a call at (805) 745-5553.

  3. I have a 2015 Itasca 27N /F53 , I have installed a steering damper and a rear sway bar. The ride is much better, but on rough roads the coach gets beat up. I am constantly worrying what’s going to shake lose.
    Which product would you recommend ?

  4. Post
    Author

    Hey Michael, thank you for your post and your interest in SumoSprings. The part number will depend on the gross vehicle weight rating (GVWR) of your coach. The Itasca is made by Winnebago, so I’ve listed the recommended kits for each GVWR class accordingly. Below are the part numbers for all GVWR classes:

    Front:
    SSF-170-40-2 2015 Winnebago 16k-18k
    SSF-170-40-2 2015 Winnebago 20k-22k
    SSF-173-40-2 2015 Winnebago 24k-26k

    Rear:
    SSR-184-40-1 2015 Winnebago 16k-18k
    SSR-180-54-1 2015 Winnebago 20k-22k
    SSR-183-54-1 2015 Winnebago 24k-26k

    One of the main functions of the SumoSprings kits is to significantly dampen that road shock and vibration you’re referring to. The SumoSprings will definitely help keep everything in place. You can confirm these part numbers, view images and installation instructions, and learn more about these parts by using our Year | Make | Model search. If you have any questions, please give our team a call at (805) 745-5553.

  5. I have a 2018 Thor Quantum 31LF Class C on a Ford E450 with upgraded shocks (Bilstien), Sway bars (Hellwig) , front Safety T plus and a Super Steer rear trac ; can I add the SumoSprings? If so which model and do they require any drilling/modification to the chassis?
    Thank you

    1. Hey Camilo, Thanks for checking out our blog and inquiring about SumoSprings for your Class C. There are a lot of Class C applications where the combo you’re describing works great. Then, there are some applications were an attachment point conflicts with another part. The SumoSprings will definitely enhance your other additions, reducing sway and absorbing road vibration. The question is, will where the SumoSprings install be available? I would recommend reviewing the pictures in the installation instructions for SSR-106-47-1. You can also email us pictures of your Class C frame and leaf spring assembly and our tech team will help. I would also recommend the SSF-106-40 SumoSprings for the front. These will help smooth out the ride, reduce rear to front movement over bumps and joints, as well as out of parking lots and uneven terrain.

  6. I’m looking for the part # for the sumo that is right for my 2017 Jayco Grayhawk 31. I’m also looking for the part # for the sumo for my f250 four door, four wheel drive truck. The truck normally has no load but does haul trailers that sags the back end sometimes.

  7. Post
    Author

    Hey Raymond,

    I’d be happy to assist with the part numbers you are looking for! If your Jayco is a Class A motorhome, please let me know the year, make, and model of the chassis it is built on, along with the coach gross vehicle weight rating (GVWR). If it is not, all we would need to know is the year, make and model of the chassis. As for your 4WD Ford F-250, what is the year of the truck?

    Thank you for your time!

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.