What SumoSprings Do I Need for My 2020 Thor Class C?

Question

Question:

We recently got a Thor Class C motorhome and I'm noticing a lot of sway when we get passed by semi trucks on the highway. I've heard some good things about sumo springs as the way to go. Would like recommendation on which ones will work best for front and rear suspension upgrades

asked by: Harlan

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Expert Reply:

The SumoSprings are a great choice! I recommend using the SumoSprings Custom Helper Springs # SSF-106-47 (front) and # SSR-106-47-1 (rear) on your 2020 Thor Class C motorhome on a Ford F-350 cutaway.

The SumoSprings are a great choice to help absorb bumps and minimize the sway that you're encountering from passing semi trucks. These jounce style springs are made from a microcellular urethane and work progressively to gain strength as more weight is applied to them- meaning the springs compress easily at first for soft engagement and work harder as more load is applied. Since these springs are connected at both the top and bottom of the frame, they will supply support even when your vehicle is unloaded. You're also going to find that because these springs work independently, they're going to help combat body roll that can be experienced when cornering. The best part about these are that they're maintenance free, so you won't have to worry about filling them with air or deflating them to get a better ride.

I've attached some helpful videos that will provide you with a bit more information as well as installation videos if you want to perform the install yourself- which is fairly easy.

expert reply by: Erik B

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Answer 1

I checked with Roadmaster, and the correct fit for your 2021 Ford E450 Class C RV is the Roadmaster Exact Center Steering Stabilizer #RM47MR.

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Answer 2

I went ahead and checked with Roadmaster, and the correct Exact Center steering stabilizer and custom mounting brackets for your 2022 Thor Chateau 31W is the: -Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets #RM47MR. This kit includes…

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Answer 3

For your 2022 Thor Outlaw 29J motorhome on a Ford E450 chassis, the correct steering stabilizer is the Roadmaster Exact Center Steering Stabilizer #RM47MR. I verified the fitment of the #RM47MR directly with Roadmaster for you, and it does come with…

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Answer 4

For your RV that is built on a 2020 Ford E-450 Cutaway chassis the SumoSprings kit you'd want is the part #SSR-106-47-1 which will give you up to 4,600 lbs of support and also will improve stability and handling of your motorhome when on the…

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Answer 5

The difference between the SumoSprings Maxim Custom Helper Springs is that part #SSR-106-40-1 is rated for 2,600 lbs and part #SSR-106-47-1 is rated for 4,600 lbs. For a Ford E-450 Motorhome with 12,000 Lb GVWR I recommend the latter, part…

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Answer 6

I found the online version of the install instructions for the Exact Center stabilizers like the #RM47MR. What's fun is that just when you think you have found the correct step to address your problem it tells you to continue to the next step.…

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Answer 7

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Answer 8

Yes, we have the Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets #RM47MR for your 2023 Thor Axis 24.1. We currently do not have any way of lifting your RV suspension and all of our suspension enhancement is designed to fit a vehicle at…

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Answer 9

The correct steering stabilizer for your 2022 Entegra Odyssey 25R Class C motorhome built on a Ford E450 chassis is theRoadmaster Exact Center Steering Stabilizer #RM47MR. I checked with Roadmaster for you to verify the #RM47MR is the correct fit.

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Answer 10

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 11

For sag from towing a trailer the best recommendation I can make is actually a weight distribution system. Suspension enhancement will help level your truck while towing. But the advantage to a weight distribution system is that it levels the vehicle…

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Answer 12

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