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SumoSprings Maxim Custom Helper Springs - Rear Axle

SumoSprings Maxim Custom Helper Springs - Rear Axle

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7,000-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-187-54-1 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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SuperSprings Intl Vehicle Suspension

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

7,000-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.


  • 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, high-density 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


  • Weight capacity (at 50-percent compression): 7,000 lbs
    • SumoSprings will not increase your vehicle's weight-carrying capacity
  • 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-187-54-1 SuperSprings Sumo Springs Maxim Rear Vehicle Suspension Kit for Motor Homes

Item # SSR-187-54-1

Installation Details SSR-187-54-1 Installation instructions

This Product Fits The Following Vehicles

Customer Reviews

SumoSprings Maxim Custom Helper Springs - Rear Axle - SSR-187-54-1

Average Customer Rating:  4.9 out of 5 stars   (192 Customer Reviews)

7,000-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-187-54-1
2019 Fleetwood Flair Motorhome

I watched the install video probably three or four times before these arrived at the house. I went ahead and removed my wheels just like the install video. Everything went smoothly. I took our Fleetwood Flair 32s on a test drive and I was really impressed with the overall feel of our RV now.. The first thing I noticed was the fact that I’m not having to constantly correct to stay in my lane. In the past my hands were constantly moving to maintain a line. Not now.

- SSR-187-54-1

Eliminates a lot of sway from passing semi-trucks and strong side winds, gives a truer sense of driver input and what is happening on the road, feels more solid when you setup for camping- less rocking when you walk from one side of the motorhome to the other or using the steps. Doesn't soften the ride one bit on the Ford frame. It does porpose on uneven pavment like bridge abutments' you have to keep an eye out and slow down. As long as I drive in Florida it's not a problem. would like to fix it. but not worth ripping everything out and starting over!

Thank you for your review. These are generally a simple install and I am not sure why these would not soften the ride. If you have not done anything to the front axle, it could be worth considering.
-- Etrailer Expert Sierra K - 06/18/2021

- SSR-187-54-1

2017 Newmar Canyor Star: We installed the front & rear SUMO springs and the side-to-side sway improved a lot. Total installation time was less than 4 hours.

- SSR-187-54-1

I added Sumo springs to the front and rear of my 2020 Georgetown GT7 motorhome about a year ago....WOW what a difference and a great spend. I paid a truck mechanic to do the work and it took about 1 1/2 hour max to do the rear, a little harder as he had to drill into the frame but none the less pretty simple....After watching him do the front i could have easily did the same. great investment!

- SSR-187-54-1

I put both front and rear sumos on are 3722. I did see a difference but not what I thought it would be. I’m hoping to add new shocks to final be done. I also added a steering Stabilizer. Long story short I would but this product again

- SSR-187-54-1

If you have the ability to remove the tires on your motorhome this is an easy install. Instructions are clear and simple to follow. Between the front and rear Sumo Springs driving the motorhome their is a big difference. I highly recommend these to anyone wanting to upgrade the suspension.

- SSR-187-54-1
2019 Newmar Bay Star Motorhome

Virtually eliminates the side to side roll as well as the push from passing trucks. Road noise is also considerably reduced. Well worth the money!

- SSR-187-54-1
2015 Ford F-53

Will be installing these next month quality of product is excellent

2015 Thor outlaw class A big difference in the ride more stable going down the road not shifting lanes when a tractor trailer goes by
Ed - 08/24/2021

- SSR-187-54-1
2016 Thor Challenger Motorhome

The Sumo Springs have made the ride on my 2016 Thor Challenger much better. The coach doesn’t lean as much and feels more stable.

- SSR-187-54-1

Great product with excellent results . However throw the instructions away , the are a bit misleading . [watch the online videos] .

- SSR-187-54-1

Best purchase you can make for the f53 chassis. I can't believe how big a difference these things make. Very nice ride. Can actually drive for hours now and not feel fatigued. I recommend to buy these first thing when you get a new motorhome.

- SSR-187-54-1

These made a huge difference in the drivability and handling of my 2018 Ford F53-based bounder 35K. Highly recommended. And the team at etrailer.com is super responsive and helpful. I strongly recommend this upgrade, combined with additional/reinforce sway bar. You driving will be more pleasant, less stressful and safer. - Vittorio

- SSR-187-54-1

These folks are on their game. Free shipping usually means , will ship when we feel like it. Not these people, the order was being processed the same day and I received my order correct within 3 days, outstanding in my book. I will continue and recommend etrailer to my friends. Thanks to some great Americans for doing one hellava job. Keep on Truckin etrailer.

- SSR-187-54-1

Great product. Bought the rear and front. Best purchase ever!!

- SSR-187-54-1

Made a big difference well worth the mo ney.

- SSR-187-54-1
2011 Ford F-53

I purchased a 2011 Georgetown motorhome in 2011 which uses a Ford F-53 chassis. I wish I knew better at that time. I realized that driving it was stressful and dangerous due to the body roll and micro lunges when driving rough road or windy day or curvy roads. We limited our trips to around 200 miles due to this. I had to do something. First, the rear sway bar I bolted the connecting links to the inside bolt holes and replaced the shocks. It drove much better but still some body roll and micro lunges. So I decided to take the next step. I purchased Sumosprings for the rear and front axles. They were exceedingly easy to install, worst part was drilling the frame for the rear axle. I have now been on a trip on mountain roads for two weeks. The micro lunges seem to be gone, almost like driving a car. The body roll isn't an issue anymore, I can drive the mountain curves without feeling like being thrown over a cliff. There may be other ways to fix this Ford F-53 problem, but the Sumosprings do the job.

- SSR-187-54-1

Another excellent upgrade. Really an awesome product why did we wait so long to put these in you won’t be disappointed

- SSR-187-54-1

Highly recommended

- SSR-187-54-1
Chevrolet Silverado 1500

Wow what a difference. We have had the Sumo springs in for about a year now. We have made several trips including a couple over 1500 miles and the ride and handling are so much better. The key points for us have been the smoother ride and faster recovery from dips and bumps (one porpoise and settle!). Also the improved handling at corners and turns because the rig doesn't lean as much. The big review is from my wife who was not really enjoying our class a before because the ride was making her a little sick. She is very happy now and will be the first to tell folks about the springs. As for install, two old guys that aren't really big DIY car guys took 2 days and a few bruises but we installed at all 4 corners. And without having to call anyone for help! The video from etrailer was a key factor there. The tip on removing the wheels for the rear install was probably the biggest piece I got from it and honestly I'm not sure how you can drill those holes without doing it. I highly recommend the Sumos and etrailer was fantastic in getting products shipped and providing good support info to make the install easier.

- SSR-187-54-1
2016 Forest River Georgetown XL Motorhome

Installed front sumosprings myself and they made a great improvement in sway from passing trucks. Just received my rear sumosprings and can'r wait to get them installed before our next trip. Thank you etrailer, for having a great price and answering my calls, to discuss all my question before and after I purchased my products.

- SSR-187-54-1
Toyota Tundra

I bought the yellow sumo springs hoping to take some of the sag out when hooked to my fifth wheel. Very happy with results, took at least 2/3rds. out. Simple to install, at least on my Tundra.

- SSR-187-54-1
2006 Ford F-53

if you want to tame your f53 motor home chassis , sumo springs are your answer, i installed them along with hell wig h/d sway bars front and rear , night and day 100% improvement in handling ,and raised the coach 1 1/2 inches , worth every dollar , also awesome service from etrailer .com, thank you.

- SSR-187-54-1

I had the both the front and rear sumo Springs installed on my 2016 Newmar Canyon Star, by the crew at Etrailer. The improvement in the handling was noticeable the minute I hit the road. The most noticeable effect was the reduction in the top heavy sway when cornering. It also seems to have reduced the effect of passing semi's . I would definitely recommend this product to anyone who has a Ford F53 chassis on their motorhome.

- SSR-187-54-1

Not installed yet but I they are exactly what I ordered and service and shipping was great!

- SSR-187-54-1

Excellent service!

Best suspension upgrade you can make for a F53 chase.
Greg W - 04/19/2021

Show More Reviews

Ask the Experts about this SuperSprings Intl Vehicle Suspension

  • Recommended SumoSprings for 2019 Ford F-53 Chassis With 24,000 lb GVWR
    The SumoSprings I recommend for your motorhome built on a 2019 Ford F-53 chassis with a 24,000 lb GVWR are the SumoSprings Maxim Custom Helper Springs - Rear Axle # SSR-187-54-1 and the SumoSprings Rebel Custom Helper Springs - Front Axle # SSF-173-40-2. I do need to note that the Rear Axle SumoSprings will NOT fit Coachmen, Holiday Rambler, Jayco, Tiffin, or Winnebago models, but is a fit for all other models of motorhome. These springs are the best option for your F-53 because they...
    view full answer...
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  • Recommended Full Suspension Enhancement Parts Needed for 2016 fleetwood bounder 35k
    We have just the parts you're looking for! To go with the Sumo Springs # SSF-170-40-2 on the front axle of your 2016 Fleetwood Bounder I recommend using the Sumo Springs Maxim Custom Helper Springs # SSR-187-54-1. I prefer these over the SuperSprings # SSA41 because they'll do a little bit better job of helping with body roll while not stiffening up your leaf spring suspension too much, and they're a great match for the front Sumo Springs. The Sumo Springs are designed to get progressively...
    view full answer...
  • Front SuperSprings for 2020 Newmar 3112 Class A with 20,500 GVWR F-53 Chassis
    I'm glad to hear that you're enjoying the SumoSprings Maxim Custom Helper Springs # SSR-187-54-1. The correct front set for your 2020 Newmar 3112 Class A with the 20,500 GVWR F-53 chassis is part # SSF-170-40-2. When it comes to a steering stabilizer you want the Roadmaster Reflex Steering Stabilizer with Mounting Brackets # RM-RBK22-RSSA. I have attached some sample installation videos for you to check out as well.
    view full answer...
  • Recommended SumoSprings For 2012 Tiffin Allegro 32CA Motorhome On F53 Chassis with 22K GVWR
    For the front axle I recommend the SumoSprings Rebel Custom Helper Springs # SSF-170-40-2. These springs have a 3,000 lb weight capacity at 50% compression. Fits the 2008 to 2017 F53 Tiffin models. Looks like the part # SSF-171-40-2 is for the earlier model years 2004 to 2007. For the rear axle, the springs I recommend are SumoSprings Maxim Custom Helper Springs part # SSR-180-54-1. These springs have a 7000 lb weight capacity at 50% compression. I have attached a link to a couple...
    view full answer...
  • Best Rear Suspension Enhancement for 2016 Jayco Alanta 26Y with Sag and Sway
    For the rear suspension of your 2016 Jayco Alanta 26Y the SumuSprings Maxim part # SSR-184-40-1 would be your best option for removing sag and sway since it provides up to 3,000 lbs of additional support and our feedback from customers has been that it provides the best way to fight sway and sag. We had the chance to install it on a similar Alante for you to check out as well which you can see at the attached install video link.
    view full answer...
  • Which Sumo Springs for Rear Suspension of 2020 Thor Outlaw 38MB on Ford F-53 Chassis
    The SumoSprings Maxim helper springs you'd looked at, part # SSR-187-54-1 would be a fit for your 26K GVWR Thor Outlaw 38MB. The springs will provide 7000 lbs of support, and will do a great job of reducing body roll and sway. I've linked you to a video where my buddy Shane will show how the SumoSprings are installed.
    view full answer...
  • Front and Rear SumoSpring Kits for 2003 Sunova Motorhome Built on F-53 Chassis
    Since the GVWR of your 2003 Sunova built on a Ford F-53 chassis is 22,000 lbs the correct kit you need is the # SSR-187-54-1 for the rear axle and # SSF-172-40-2 for the front.
    view full answer...
  • Which SumoSprings Fit on a 2020 Newmar Bay Star with 22,000-lbs GVWR and Ford F-53 Chassis
    Yes. The SumoSprings # SSR-187-54-1 are a confirmed fit on the Ford F-53 chassis on your 2020 Newmar Bay Star. If you'd also like to add SumoSprings to the front of your coach you can use part # SSF-170-40-2. I've linked an installation video of these springs for you, as well.
    view full answer...
  • What is the Difference Between the Different Color SumoSprings for the 2019 Coachman Mirada 32SS.
    You are correct that the different colors on the SumoSprings Custom Helper Springs like the # SSR-187-54-1 note the different densities of the springs; the yellow springs that you were looking at and are mentioned above are the stiffest compression strength springs available for your 2020 Coachman Mirada 32SS and are the best choice to help reduce the side-to-side sway you're experiencing. For reference, the blue SumoSprings are for light duty applications, the black are designed for...
    view full answer...
  • SumoSpring Suspension Recommendation for 2019 Fleetwood Bounder with 22k Ford F-53 Chassis
    For your 2019 Fleetwood Bounder with a 22K Ford F-53 Chassis, the # SSR-187-54-1 SumoSprings Maxim Custom Helper Springs is what you need. These are a confirmed fit for the 33C, 35K, 35P, 36F and 36PF models with 20, 000 to 22,000 lb GVWR. This is an excellent solution to reduce the amount of up and down movement, as well as reduce body roll and improve the overall ride quality . I have attached an installation video on a 2018 Fleetwood Bounder for you to check out at the bottom...
    view full answer...
  • Rear SumoSprings Suspension Enhancement for 2019 Ford F-53 Chassis with 22K GVWR
    The correct SumoSprings Helper Springs for the rear axle on your 2019 Ford F-53 chassis with a 22K GVWR is the Maxim Custom Helper Springs # SSR-187-54-1. These 5,400 pound capacity springs are a confirmed fit for this setup and will work great to smooth out bumps in the road and create much better overall support during travel. All the needed hardware is included. I have attached an installation video on a 2019 F-53 motorhome below that you can also follow along with.
    view full answer...
  • Best SumoSprings For A 2019 Fleetwood Bounder 35P
    I recommend the SumoSprings Maxim Customer Helper Springs part # SSR-187-54-1 on the 2019 Fleetwood Bounder 35P motor home. The SumoSprings are progressive springs which means they will compress easily with a lighter load and up to 80% with heavier loads for support. They provide the progressive load control without the intense and daunting installation process of air bags. The SumoSprings are a install and forget it suspension enhancement option. I have attached an installation video for...
    view full answer...
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  • SumoSprings Recommendation for 2017 Winnebago Vista 32YE
    When picking out a set of SumoSprings to fit a motorhome you have to go by the kits that fit the chassis of the vehicle as well as fall under the same GVWR range too so that you get the correct amount of support. Also you want to keep in mind that SumoSprings has a few different lines of springs too. I looked up your Winnebago Vista 32YE and it has an 18k GVWR. So the # SSR-187-54-1 would be rated too high since it's for 20 to 26k motorhomes. So you'd want the part # SSR-184-40-1 for...
    view full answer...
  • Are There Any Lines in the Way for Installing SumoSprings on a 2017 Thor Ace
    Since different RV manufacturers may make some modifications to things under the Ford F-53 chassis you will simply need to check the area above your leaf springs. SumoSprings, like part # SSR-187-54-1, are confirmed to fit an F-53 chassis and are designed for vehicles with a GVWR between 20,000 and 26,000 lbs. I have attached a sample installation video that you can use as a reference.
    view full answer...
  • Recommendation For Suspension Enhancement Springs For 2016 Ford F-53 Chassis RV
    Since you have already added several stability components to your RV, I recommend the SumoSprings Maxim Helper Springs for the Rear Axle, Item # SSR-187-54-1. These are a confirmed fit for your vehicle and will provide additional cushion for bumps and greater support to your ride to minimize sway. The springs work independently of each other which reduces roll during turns. The have an easy bolt-on installation and are made in the USA. I have attached some videos to assist you.
    view full answer...
  • Correct SumoSprings for 2017 Mirada on Ford F-53 Chassis
    You did have the rear SumoSprings correctly figured, # SSR-187-54-1, though because your vehicle has a GVWR of 22,000 lbs the correct SumoSprings for the front axle would be # SSF-170-40-2. The springs you referred to are the same but are for vehicles with a higher GVWR. I've added a link to a video review and install of the stabilizer for you to take a look at.
    view full answer...
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  • Sumo Spring Recommendation for 2017 Fleetwood Southwind 36L
    For the rear axle of your Ford F-53 chassis RV the Sumo Spring part # SSR-187-54-1 would be the correct fit. It's also designed for the weight of your chassis as well. I attached an install video as well. For the front axle you would want the part # SSF-170-40-2.
    view full answer...
  • SumoSprings to Fit a 2005 Thor Hurricane Built on a Ford F-53 Chassis
    For maximum support in the rear I recommend SumoSprings # SSR-187-54-1. They're 5,400 pound capacity springs for motorhomes on a Ford F-53 chassis like your Thor Hurricane with a GVWR between 20,000 and 26,000 pounds. We have some SumoSpring kits for the front of your Thor but none are designed to handle its GVWR. Instead you can use the Timbrens # TFFF53B.
    view full answer...
  • Suspension Enhancement for Itasca RV on 2014 Ford F-53 Chassis
    I recommend having your suspension checked out to make sure there are no issues, but if everything is fine, suspension enhancement springs would help level your Itasca. I could not guarantee this will "fix" your lean but the SumoSprings Maxim Custom Helper Springs # SSR-187-54-1 are designed to help keep your RV level and minimize sway. These springs are for 2-wheel drive models - as each of the available springs we offer are - with a GVWR between 20,000 and 26,000 lbs. As for the bushings,...
    view full answer...
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  • Recommended SumoSpring Suspension Enhancement for 2019 Fleetwood Bounder 35K
    Your Fleetwood Bounder 35K features a GCWR of 26,000 pounds so for the rear axle the SumoSprings Maxim Custom Helper Springs # SSR-187-54-1 will work perfectly to upgrade the rear suspension and stabilize the Ford F-53 chassis during travel. These springs have a progressive load control to ensure a comfortable ride regardless of the weight of your cargo and they feature a weight capacity of 5,400 pounds. To further stabilize your RV I also recommend adding springs to the front axle...
    view full answer...
    Image 1 for
  • Recommended SumoSprings Helper Springs for 2019 Fleetwood Bounder Motorhome on Ford F-53 Chassis
    The recommended SumoSprings helper springs for your 2019 Fleetwood Bounder motorhome built on a Ford F-53 chassis are the SumoSprings Maxim Custom Helper Springs # SSR-187-54-1. These rear axle springs are the only SumoSprings that fit a Fleetwood and do fit all models - the Fleetwood Bounder 33C, 35K, 35P, 36F and 36FP - each of which has a GVWR between 22,000 lbs and 26,000 lbs. For SumoSprings that fit the front front axle there it will depend on your Fleetwood's model. For a Fleetwood...
    view full answer...
  • Recommended SumoSprings Suspension Enhancement for Thor Miramar on a 2016 F53 Chassis & 22K GVWR
    The best and correct SumoSprings for your new Thor Miramar 34.3 on a 2016 Ford F-53 Chassis weighing in at 22K GVWR are the # SSR-187-54-1 for the rear axle and # SSF-170-40-2 for the front axle. I have linked them both to this page for your convenience.
    view full answer...
  • How to Improve the Handling and Ride Quality of 2018 Forest River FR3 32DS Motorhome
    I did some research and your 2018 Forest River FR3 32DS is built on a Ford F-53 chassis and has a 20,500 GVWR. The F-53 chassis is notorious for the ride quality you described. The biggest improvement you'll make is with a rear sway bar, which for that you'd want the # RM-1139-145. Next biggest improvement will be with a front sway bar # RM-1139-140. SumoSprings will help too and are a solid choice. For that you'd want the # SSF-170-40-2 for the front and part # SSR-187-54-1 for the...
    view full answer...
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  • Recommended SumoSprings Front and Rear for 2017 Fleetwood LXE 31B
    So your 2017 Fleetwood LXE 31B is built on a Ford F-53 chassis and has a GVWR of 18k so the correct SumoSprings for the front and rear are # SSF-170-40-2 for the front and # SSR-187-40-1 for the rear.
    view full answer...
  • SumoSpring and Steering Stabilizer Recommendation for 2016 Ford F-53
    For the rear you'd want the SumoSpring kit part # SSR-187-54-1 and for the front # SSF-173-40-2 as these are both designed to fit Ford F-53 chassis with a 26k GVWR. Then for a steering stabilizer you would want the part # RM-RBK22-RSSA which is designed as a fit for your RV as well.
    view full answer...
  • Suspension Enhancement for 2017 Thor Challenger 37TB Motorhome on Ford F-53 Chassis
    Both the SumoSprnigs # SSR-187-54-1and the # SSR-180-54-1 a very similar and serve the same purpose. The main difference is that the # SSR-180-54-1 are not designed to fit your 2017 Thor Challenger and the # SSR-187-54-1 springs are.
    view full answer...

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Used Items Available
Used Picture for SumoSprings Maxim Custom Helper Springs - Rear Axle

Condition: Like New

Notes: May have damaged packaging or minor cosmetic blemishes.

Our Price: $529.95
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