1. Vehicle Suspension
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SumoSprings Maxim Custom Helper Springs - Rear Axle

SumoSprings Maxim Custom Helper Springs - Rear Axle

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3,000-lb Capacity. Maintenance-free microcellular urethane springs upgrade your vehicle's rear suspension. They cushion bumps and support a heavy load to level your ride and minimize sway. Springs attach at top and bottom for constant support. Lowest Prices for the best vehicle suspension from SuperSprings Intl. SumoSprings Maxim Custom Helper Springs - Rear Axle part number SSR-187-40-1 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (202)
  • Q & A (52)
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SuperSprings Intl Vehicle Suspension

  • Jounce-Style Springs
  • Rear Axle Suspension Enhancement
  • SuperSprings Intl
  • Standard Duty

3,000-lb Capacity. Maintenance-free microcellular urethane springs upgrade your vehicle's rear suspension. They cushion bumps and support a heavy load to level your ride and minimize sway. Springs attach at top and bottom for constant support.


Features:

  • Helper springs upgrade your vehicle's rear suspension for improved driver control and comfort
    • Support heavy rear loads to keep your vehicle level
    • Help to absorb bumps and shocks
    • Minimize sway
  • Progressive load control - springs compress according to the weight of your cargo
    • Lighter loads - springs compress easily at first for soft engagement and a less bumpy ride
    • Heavier loads - springs compress by as much as 80 percent for support
  • Springs work independently from each other to compensate for off-center loads and reduce body roll during sharp turns
  • Springs are connected to your vehicle at top and bottom to provide support even when your vehicle is unloaded
    • Expand up to 50 percent of their height
  • Durable microcellular urethane
    • Works in temperatures from -25 F to 200 F
    • Resists damage caused by oils, road salts, and UV rays
  • Minimal lateral expansion - springs expand and compress vertically instead of to the sides so they aren't easily damaged when operating in tight spaces
  • Maintenance-free - no tubing to run or air pressure to monitor like with air springs
  • Easy bolt-on installation
  • 2 Springs and necessary hardware included
  • Made in the USA


Specs:

  • Weight capacity (at 50-percent compression): 3,000 lbs
    • SumoSprings will not increase your vehicle's weight-carrying capacity
    • Rated for use on RV's weighing between 16,000 and 18,000 lbs
  • Limited lifetime warranty
  • 30-Day satisfaction guarantee


Rear Suspension Support

SumoSprings helper springs are great for RVs or motor homes. Heavy rear loads can cause sag as your factory suspension compresses under the weight of the load. This means that the rear axle is trying to support not only the extra load but also the motor home's weight. And because there is less weight on your front axle, your front tires make less contact with the road, which causes problems with traction, steering, and braking. SumoSprings upgrade your vehicle's factory suspension to level your vehicle, improve driving performance, and keep your ride comfortable.


SumoSprings diagram of installation above existing vehicle spring

Each spring in this kit is bolted to two mounting brackets. One bracket is attached to the frame of your vehicle, and the other bracket is attached to the axle, typically above your existing factory leaf spring. Because each helper spring is in full contact at the top and bottom of the suspension's travel, the expanding and contracting action of the SumoSprings enhances your ride under all conditions, not just when it's loaded. And the closed-cell urethane springs act like a shock absorber to dampen road vibration.


SumoSprings compressing under load

SumoSprings provide progressive load control - the more you load them, the stiffer they become. With a lighter load, the springs will compress easily for soft engagement and a less bumpy ride. The springs can also compress by as much as 80 percent to support a heavy rear load and to help your factory suspension bear up under the load. This evens out the weight, which levels your vehicle and ensures that your front tires are making better contact with the road. A level ride means that you have improved driving control, ensures safe headlight aim, and helps to minimize sway. The springs also support your factory suspension, which helps prevent sagging and reduces bottoming out.


The springs work independently from one another to support each side of your vehicle. This action helps to reduce body roll when you make a sharp turn. This also helps compensate for an off-center load.


SumoSprings expanding to allow play in the suspension

These springs extend in height by as much as 50 percent to allow more movement in your suspension when you're traveling unloaded, making your ride smoother and more comfortable.


Durable, Custom-Fit Springs

These microcellular urethane springs are tough. They resist abrasion, oil, salt, and UV rays that can more quickly wear out other springs, and they perform well in temperatures ranging from -25 F to 200 F (-33 C to 93 C).


SumoSprings expand and compress vertically with minimum expansion to the sides, so they won't be damaged by nearby mechanical parts and they fit safely into tighter spots. And unlike air springs, SumoSprings require no maintenance or adjustment.


This kit comes with custom-fit brackets that are designed to easily bolt onto your vehicle.



SSR-187-40-1 SuperSprings Sumo Springs Maxim Rear Vehicle Suspension Kit for Motor Homes

Item # SSR-187-40-1

Installation Details SSR-187-40-1 Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

SumoSprings Maxim Custom Helper Springs - Rear Axle - SSR-187-40-1

Average Customer Rating:  4.9 out of 5 stars   (202 Customer Reviews)

3,000-lb Capacity. Maintenance-free microcellular urethane springs upgrade your vehicle's rear suspension. They cushion bumps and support a heavy load to level your ride and minimize sway. Springs attach at top and bottom for constant support.

- SSR-187-40-1
by:
Ford

Our 28 foot Ford chassis Class A handles like flying a kite with no string. It needed help. I started with the Sumo springs because the description made it sound like I could do them myself. Yep. Job accomplished. Then, I purchased a front sway bar, which did not come with my motorhome. Got ready for the job and discovered Sumo springs are incompatible with mounting a front sway bar. Had I known… By the way, we are still flying our kite and having a ball. 15 states and 16,000 happy miles. But it could be better.



- SSR-187-40-1
by:
Ford

My THOR motor coach has the Ford F-53 chassis. I rides like a truck. That should not be surprising as "it is a truck." I purchased and installed these Sumo Springs and even though it will never be "air bag" suspension, the Sumo Spring made a wonderful difference in improving the ride. I would recommend this add on to everyone and as I meet similar motor coaches on the road, I show them the Sumo Springs and I do recommend them.



- SSR-187-40-1
by:

Very happy and satisfied with the the service and support provided by etrailer. There was a missing part in the original order and they steeped up and took care of it quickly and it made it on time to keep my appointment with the installer. All of the recommended parts have worked as advertised and I will definitely be getting all future needs from etrailer!!



- SSR-187-40-1
by:
Thor

Installation of the rear SumoSprings Maxim Custom Helper Springs was accomplished without any problems. All necessary parts to install the springs were supplied in the kit. The SumoSprings have made a great difference in the ride and stability of our 2015 Thor ACE. The ACE ride and sway has improved to the point it is like driving a new RV. The side winds that push on the rear do not make the front want to move toward the center line or road side. I don't feel like I'm in a constant battle to stay in my lane which will vastly improve my driving pleasure. Passing 18 wheeler trucks didn't make our rig move away like before. I feel much safer with this more stable drive. The RV also doesn't seem to have the top heavy sway as we corner we actually have a much safer and smooth transition. Our test drive home from the shop was about 22 miles, with 5 miles on 4 lane and 18 miles on a narrow two lane back road. I feel this gave me the chance to evaluate the improved performance gained by installing the SumoSprings. I know our next trip will be a much safer and pleasant drive Thanks to the SumoSprings.


Comments
Great
John - 03/21/2020



- SSR-187-40-1
by:
2018 Thor Windsport Motorhome

Sumospring is an excellent product. Very happy with the performance of this product. Installation was not difficult only had to make small adjustments. Sumospring Tech help line was very helpful. Product does as advertised.



- SSR-187-40-1
by:

Read my review of the front springs. 100% improvement.



- SSR-187-40-1
by:
2015 Ford F-53

I purchased the SumoSprings Maxim rear axle helper springs for my 2016 F-53 Ford Chassis Georgetown 270S last year. They arrived quickly and were relatively easy to install. We drive in the mountains and regularly contend with cross-winds and some uneven road surfaces. we have put on a couple thousand miles since I installed these and the improvement is noticeable. These helper springs really smoothed out the ride, made the RV much more stable on the road with no harshness in ride comfort. These springs are worth getting if you are trying to avoid that side to side rocking and soft feel of the stock springs. I plan to install a set on the front soon to further add to the stability in windy conditions. These springs are a worthwhile investment and not that pricey compared to other options.



- SSR-187-40-1
by:

Great product. Front easy to install backs I had to get help only because its easier to remove the wheels. They almost stopped the wobbling/swaying and shimmering of the steering wheel over bumps. A lot smoother ride.



- SSR-187-40-1
by:
Thor

Big Improvement! Installed Sumosprings on Rear Thor ACE 29.4 F53, after installing Sumosprings on front and steering stabilizer shock. The rear SumoSprings greatly eliminated sway from back of MH, and seemed to firm up the ride and a reduce bounce. The improvement was very noticeable but incremental compared to the modification to front of coach. Was a VERY good investment, but suggest start with front Sumosprings, With all 3 modifications I can drive down the road with two fingers (not recommended) on steering wheel, no fear from wind/trucks, and pleasurable ride! NOTE: Bolts were too long (5" needed 4" otherwise interfered with break line), etrailer probably would have quickly replaced but in hurry and purchased myself ($2).



- SSR-187-40-1
by:

I read a lot about the sway u get from a Rv and how people buy everything under the sun to fix it. I decided to purchase the sumo springs first before any sway bars shocks or any other product people had purchase. They cured all of the problems I was having with the pushing from a semi passing and the wind. I went from a death grip on the steering wheel to a more relaxing ride. I live in the Columbia gorge and we get some heavy winds. So glad I bought them I would recommend these to anyone who would like a more stable ride and and a relaxing drive.



- SSR-187-40-1
by:
Thor

I called to figure out if that Sumo Springs will work on my 2016 Thor ACE 27.1 and he said they would. I ordered them and it was like magic they appeared after a few days as promised. ( ok, maybe not magic). But you get the point. I will be calling in for more things in the future and will always ask for James, outstanding job and teacher. Walked my thru a lot of dumb questions i had and was helpful. I recommend these guys.



- SSR-187-40-1
by:
Nissan Leaf

These make a significant difference for standard leaf spring gas rigs. They certainly don’t achieve air suspension ride or handling but a worthwhile modification to a gas rig. Sharp turns no longer tilt the vessel like before.



- SSR-187-40-1
by:

Was ready to improve handling of my Class A. I was pleasantly surprised with the improved handling with front and rear sway bars, sumo springs and a steering stabilizer.



- SSR-187-40-1
by:
2017 Ford F-53

Item installed easily. Ideally I would have removed the tires but with some effort this item installed without the removal. Springs definitely tighten up the vehicle rear end. I have not placed load on yet so the real test is yet to come but handling has improved. ETrailer is a great company to do business with. Will use again and again!



- SSR-187-40-1
by:

Shipping was faster than I expected. I have used SumoSprings on past RV’s and the ones I purchased for our new Class A are performing as expected.



- SSR-187-40-1
by:
2015 Forest River FR3 Motorhome

We are so excited our Sumos have arrived! We are having them installed by a local Custom’s installer shop next Wednesday, and we just can’t wait to experience the ride on our 2015 Forest River FR3 30DS! We have pretty much customized everything else inside with a lot of help from etrailer, now thankful they are there for us for the outside stuff as well!



- SSR-187-40-1
by:

Absolutely great company to work with!!!!!! Odelia our service rep was very patient in explaining and asking the right questions. Highly recommended. Thanks!!!!!



- SSR-187-40-1
by:
Ford Edge

Ok to install but be nice if directions or install video shows the install for both driver and passengers side. Bracket that wraps around the edge of the u-bracket holding leaf springs goes on outside/back on one side and inside/front on the other. Was a little confusing and nothing in directions or video about it. Also the placement of the sumo before or after the axle wasn’t clear. Directions had an arrow but be great if video explains it more.



- SSR-187-40-1
by:
2017 Thor ACE Motorhome

Product arrived early, perfect! Install instructions not only on the web but also in the package, even better. Already installed, rig is like a new beast. Much improved handling!



- SSR-187-40-1
by:

Excellent customer service. Sumo springs where delivered even faster than I expected



- SSR-187-40-1
by:
2016 Ford F-53

Paired these with the front Sumos and they made a world of difference in our 30 foot class A. Hardly sways at all now. My DW will even drive it now.



- SSR-187-40-1
by:
Thor

Great product, installation was not bad on a 2011 Thor Hurricane 31j, improved stability and dampened bumps and expansion joints also in my opinion has also helped isolate the road noise.



- SSR-187-40-1
by:

Great product ,great service ,easy inst all



- SSR-187-40-1
by:

Good customer service and fast delivery. Thanks alot!



- SSR-187-40-1
by:

Helped but not what I expected


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Ask the Experts about this SuperSprings Intl Vehicle Suspension

  • Choosing Between SumoSprings or Timbren for 2013 Fleetwood Storm 32BH
    Although either the # SSR-187-40-1 Sumo Spring or the Timbren # TFRF53A would be a great choice, the Timbren Aeon spring is actually rated higher at 8600 lbs, versus 2600 lbs for the Sumo Springs alternative. Neither of these options will come into play unless the factory suspension gets compressed. If ride quality is the more important consideration, the Sumo Springs option is what I'd recommend as they' give a more supple ride. If reducing roll in the corners is foremost in your mind,...
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  • Correct Front and Rear SumoSprings for a 2020 Forest River FR3 Motorhome On Ford F-53 Chassis
    I checked with SuperSprings and the SumoSprings Rebel Custom Helper Springs part # SSF-170-40-2 are a fit for the front of a 2020 Forest River FR3 Motorhome as they are designed for a 16,000 lb to 22,000 lb GVWR which your 18,000 lb GVWR falls between. The correct rear ones you should be using are the SumoSprings Maxim Custom Helper Springs part # SSR-187-40-1.
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  • Sumo Springs for a 2017 Newmar Bay Star Sport 2702
    For your Newmar Bay Star Sport 2702, I'd recommend the Sumo Springs Maxim # SSR-187-40-1 for the rear and the Rebel # SSF-170-40-2 for the front. The Rebel springs are specifically designed for use on a steer axle, while the Maxim is designed for the drive axle. Sumo Springs do a great job of helping to reduce shocks and bumps, and they also help minimize sway and body roll. I've linked to some installation videos that you might find helpful.
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  • SumoSprings Maxim Custom Helper Springs for 1999 National 36 Foot RV on Ford F-53 Chassis
    For your 1999 National 36 foot RV on Ford F-53 chassis, if you have the Tropi-Cal it is 18,0000 lbs gvwr. If the Topical is what you have then the SumoSprings Maxim Custom Helper Springs - Rear Axle # SSR-187-40-1 is what you will want. If it is between 20,000 and 22,000, then you will use the SumoSprings Maxim Custom Helper Springs - Rear Axle # SSR-180-54-1. If it is 24,000- 26,000 lbs then you will use # SSR-183-54-1. If you check your gvwr which will be on your frame or inside...
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  • Would Lowering Air Pressure in Motorhome Tires Help Ride Quality
    Tire pressure can affect ride quality to a certain extent but maybe not as much as you'd like. I'd maybe try it first and see if it gives you enough of an improvement. It's free so can't harm much right? A set of SumoSprings like the part # SSR-187-40-1 is a great option to improve the ride quality out back and then in front the Timbren kit part # TFFF53B.
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  • SumoSprings Kit Recommendation for 2019 Thor ACE 30.2
    For your 2019 Thor ACE 30.2 I recommend the SumoSprings part # SSR-187-40-1 over other options as it will give you the better suspension support and improved handling you are looking for without creating harshness in the ride quality like the Timbren kit would. The matching front kit is the # SSF-170-40-2. I attached install videos for both of these kits for you to check out as well.
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  • Recommended Driving Enhancements for 2017 Thor Hurricane 29M Class A on Ford F53 Chassis
    Your 2017 Thor Hurricane 29M is built on a Ford F53 chassis. For the Sumosprings, I recommend the SumoSprings Rebel Custom Helper Springs - 2 Piece - Front Axle # SSF-170-40-2 and the SumoSprings Maxim Custom Helper Springs - Rear Axle # SSR-187-40-1. These jounce springs will help the motorhome suspension to support the load for a more stable ride. They work independently to help with body roll, sway, and shock absorption. These springs are rated for your vehicle weight. You may...
    view full answer...
  • Recommended SumoSprings for Front and Rear of 2019 Fleetwood RV on Ford F-53 Chassis
    For your 2019 Fleetwood LXE RV built on the Ford F-53 chassis I recommend the SumoSprings Maxim Custom Helper Springs # SSR-187-40-1 for the rear and the Rebel Helper Springs # SSF-170-40-2 for the front. These springs are specifically designed for RVs like your Fleetwood LXE that have a GVWR between 16,000 and 22,000 pounds and they will work great to upgrade the suspension and help smooth out your ride. Both sets have a 2,600 pound load-leveling capacity and their maintenance-free...
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  • Will the SumoSprings Helper Springs Raise the Height on a 2016 FR3 with a Ford F-53 Chassis
    The SumoSprings Helper Springs typically don't raised the height of the vehicle they are installed on. They are designed to offer help when the vehicle is swaying or under a load in which case they basically just cause resistance. The reason I said that they typically do not raise the height is because if the suspension is in bad shape they have been known to help the suspension out and raise the vehicle a little. Since your FR3 is a 2016 I would be surprised if your suspension was worn...
    view full answer...
  • Will SumoSprings Require Drilling Into Frame of 2006 Ford F-53 Chassis?
    The SumoSprings that are a fit for your 2006 Ford F-53 chassis, # SSR-187-54-1 if your vehicle has a GVWR between 20,000 lbs and 22,000 lbs or # SSR-187-40-1 if your GVWR is between 16,000 lbs and 18,000 lbs, will require drilling mounting holes with a 3/8" drill bit. You will not, however, be required to replace the front shocks at the same time. I have added links to video reviews of these helper springs as well as a link to an install for you to check out.
    view full answer...
  • SumoSpring Helper Spring Stabilization and Support for 2017 Ford F53 Chassis on Winnebago Vista LX
    Your 2017 Winnebago Vista LX with 18,000 lb chassis does not have a Blue Ox Tiger Track Rear Trac Bar that will fit. The Tiger Track for your chassis only starts at the 20,000 lbs chassis. The steering stabilizer that will fit your motorhome is the discontinued Blue Ox TruCenter Steering Stabilizer for Motor Homes TC35160 along with the custom brackets # TC5500. This is a far more adjustable system for steering stabilization than the Roadmaster Reflex # RM-RBK22-RSSA you have but...
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    Image 1 for
  • Comparing SumoSprings and Timbren Suspension Enhancement for 2021 Thor Ace 32.3 Motorhome
    The Timbren # TFRF53A and SumoSprings # SSR-187-40-1 are very similar, which often makes it difficult to decide which is best. Both work independently to help compensate for off-center loads and reduce body roll when swerving and turning corners. They also help to add support reducing sag and minimizing sway. Both have progressive load control so they become stiffer the more they are compressed to help with heavier loads. For your 2021 Ace 32.3 Motorhome I would recommend the SumoSprings...
    view full answer...
  • Will SumoSprings Solo Custom Helper Springs Work On 2017 Thor Ace Motorhome On Ford F-53 Chassis
    The SumoSprings Maxim Custom Helper Springs, part # SSR-187-40-1 would work great on your 2017 Thor Ace. These springs help absorb bumps and shocks in the road and work independent of each other to help reduce body roll when making turns. These are a simple no-drill installation.
    view full answer...
  • SumoSprings Suspension Enhancement Recommendation for 2016 Thor Ace Built on F-53 Chassis
    For your 2016 Thor Ace 30.231 built on a 2015 Ford F-53 chassis the SumoSprings part # SSR-187-40-1 are the best option for the rear and then for the front you'd want the # SSF-170-40-2 which gives the same support as the other kit you mentioned but does not require drilling so it's and easier install.
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  • SumoSprings for 2019 Forest River FR3 29DS on 2018 Ford F-53 Chassis
    The correct SumoSprings for your 2019 Forest River FR3 29DS are parts # SSF-170-40-2, # SSR-187-40-1, and # SSR-187-54-1. Kit # SSF-170-40-2 is for the front axle while kit # SSR-187-40-1 fits the rear axle and is rated for 2,600 lbs, while the kit # SSR-187-54-1 is also a fit for the rear axle but is rated higher at 5,400 lbs. If you don't load much cargo in the rear of your FR3 or you don't have much sway then I'd go with the 2,600 lb kit, otherwise it would be better to go with the...
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  • SumoSprings Recommendation for 2019 Winnebago Sunstar 29VE on Ford F-53 Chassis
    For your 18,000 lb GVWR Class A motorhome, the correct SumoSprings are # SSF-170-40-2 for the front and part # SSR-184-40-1 for the rear. Both of these are confirmed to fit your 2019 Winnebago Sunstar 29VE with the Ford F-53 chassis and 4x2 drivetrain. The SSR-187-40-1, you referenced does not fit Coachmen, Holiday Rambler, Jayco, Tiffin, or Winnebago motorhome models, so it is not compatible with your Sunstar motorhome. I included links to installation videos on both products for...
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  • Suspension Enhancement Helper Springs for 2015 Thor ACE 29.3 V10 Motorhome
    The SumoSprings Maxim Custom Helper Springs - Rear Axle # SSR-187-40-1 are the confirmed fit for your 2015 Thor ACE 29.3 V10. If you are wanting additional support on the front axle, you would use # SSF-170-40-2. These are a great help to your coach providing the independent progressive load control.
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  • Correct SumoSprings Custom Helper Springs for a 2020 Thor A.C.E. Motorhome
    The correct SumoSprings Custom Helper Springs for a 2020 Thor A.C.E. Motorhome will be dependent on the floor plan/gross vehicle weight rating (GVWR). I have attached the correct options for you below based on the floor plan/GVWR. 27.2 (16,000 GVWR) - part # SSR-187-40-1 30.2, 30.3, 30.4, 32.3 (18,000 GVWR) - part # SSR-187-40-1 33.1 (20,500 GVWR) - part # SSR-187-54-1
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  • Comparing Timbren and SumoSprings Suspension Enhancement for 2019 Thor ACE 30.2 Motorhome
    The biggest difference between the two for your 2019 Thor ACE 30.2 motorhome, and the reason why I highly recommend the SumoSprings over the Timbren, is what each product is constructed from. The Timbrens are made from a strong, rigid rubber while the SumoSprings are made from microcellular urethane. This is important because it means the SumoSprings will compress more gently, while the Timbrens are known to give a much stiffer ride. The front axle and rear axle fits for your 2019 Thor...
    view full answer...
    Image 1 for
  • Comparing Air Lift Suspension and SumoSprings On 2019 Thor ACE Motorhome 27.2
    The Air Lift air bags for the 2019 Thor ACE motorhome 27.2 part # AL88240 for the front axle and part # AL88344 for the rear are a great option for suspension enhancement however they do require some upkeep so they are not easier. I recommend to use the SumoSprings part # SSF-170-40-2 for the front axle and part # SSR-187-40-1 for the rear axle. The SumoSprings are easier to install and do not require any upkeep. They are basically an install it and forget it suspension enhancement....
    view full answer...
  • Suspension Upgrade Recommendations for Improved Ride on 2018 Thor Windsport 29M
    You are definitely on the right track for helping to make your ride more comfortable when traveling in your 2018 Thor Windsport 29M. The first things we recommend to upgrade are the steering stabilizer, which you've already done with part # RM-RBK22-RSSA, and the anti-sway bars. For the front we have the Bushing Kit # RM-4139-127 which is designed to upgrade an OEM 1-5/8" bar if it exists, and for the back you can use the Roadmaster Rear Anti-Sway Bar # RM-1139-146. If you happen...
    view full answer...
  • SumoSprings and Steering Stabilizer for 2022 Forest River FR3 30DS on Ford F-53 Chassis
    The SumoSprings kit part # SSF-170-40-2 is a confirmed fit for your 2022 Forest River 30DS that is built on a Ford F-53 chassis. This is for the front axle so for the rear you'd need the # SSR-187-40-1. Then for a steering stabilizer you'd need the part # RM62VR.
    view full answer...
  • SumoSprings That Fit 2021 Forest River FR3 30DS on Ford F-53 Chassis
    The correct SumoSprings helper springs for your 2021 Forest River FR3 30DS built on a Ford F-53 chassis are the following: - Front: SumoSprings Rebel Custom Helper Springs # SSF-170-40-2 - Rear: SumoSprings Maxim Custom Helper Springs # SSR-187-40-1 The SumoSprings are going to do a superb job of reducing sway, keeping your motorhome level, and giving you a smoother ride.
    view full answer...
  • Combining SafeTPlus with SumoSprings Suspension and Roadmaster AntiSway Bars on a 2020 Thor Ace 27.2
    You can most definitely use SumoSprings front and rear suspension springs along with Roadmaster front and rear anti-sway bars. This isn't overkill, it's just wanting complete control of your motorhome! Here are the part numbers for the springs and bars that are confirmed to fit your chassis: - SumoSprings Front Springs: # SSF-170-40-2 (included video is an installation on a 2020 F-53 chassis) - SumoSprings Rear Springs: # SSR-187-40-1 (included video is an installation on a 2018...
    view full answer...
  • What is the Difference Between the SumoSprings Helper Springs # SSR-187-40-1 and # SSR-184-40-1
    Both the SumoSprings Helper Springs, # SSR-184-40-1 and # SSR-187-40-1, are confirmed to fit the F-53 Ford Chassis of your 2016 Thor Ace RV. The difference between the two sets of helper springs is the # SSR-184-40-1 helper springs has a weigh capacity of 3,000 lbs at 50 percent compression, while the # SSR-187-40-1 springs have a 2,600 lbs capacity. Other than the weight capacity difference, both of these helper springs sets are identical in construction and installation. I have...
    view full answer...
  • Correct SumoSprings and Steering Stabilizer for a Thor WindSport 29M
    I have listed for you below the correct suspension enhancements you're after for a Thor WindSport 29M. SumoSprings Rebel Custom Helper Springs (Front) part # SSF-170-40-2 SumoSprings Maxim Custom Helper Springs (Rear) part # SSR-187-40-1 Roadmaster Reflex Steering Stabilizer part # RM-RBK22-RSSA I am not quite sure what a steering tracker is but if you can clarify I would be glad to see if we have an option.
    view full answer...
  • Choosing the Best Suspension Upgrades for a 2017 Thor ACE Motorhome
    I am not sure what other anti-sway bars you are comparing it to but the Roadmaster Rear Anti-Sway Bar part # RM-1139-146 which is a fit for a 2017 Thor ACE Motorhome is one of the first upgrades you should be making as it provides the most amount of improvement over stock. It is one of the few upgrades you can really feel a difference in. If you only had the budget for one upgrade this would be my recommendation. If you wanted to take the upgrades one step further then you would indeed...
    view full answer...
  • Which SumoSprings Fit 2006 Georgie Boy Pursuit 2970DS with 18k GVWR
    Since your 2006 Georgie Boy Pursuit 2970DS is built on a Ford F-53 chassis that has an 18k GVWR you have two options for SumoSprings and they are both the Maxim line. The part # SSR-184-40-1 which has a 3,000 lb capacity and the # SSR-187-40-1 which has a 2,600 lb capacity.
    view full answer...
  • Recommended Jounce Springs for Two-Wheel Drive 2019 Ford F-53 Chassis
    The jounce springs I recommend for your two wheel drive 2019 Ford F-53 chassis are from SumoSprings, the SumoSprings Rebel for the front axle and SumoSprings Maxim for the rear axle. The reason why the SumoSprings are the best is because they not only work to reduce sway, but also keep your vehicle level and give you a smoother ride. The SumoSprings can do this because they are made of a microcellular urethane which compresses. Each of the springs works independently which is what is...
    view full answer...
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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Kathleen M
Video by:
Kathleen M
Employee Cole B
Installed by:
Cole B
Employee Robert C
Installed by:
Robert C
Employee Randy B
Test Fit:
Randy B
Employee David F
Test Fit:
David F
Employee Mary E
Written by:
Mary E
Employee Wilson B
Updated by:
Wilson B
Employee Alex H
Updated by:
Alex H
Employee Noah M
Updated by:
Noah M

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