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Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle

Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle

Item # CSS-1168R
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Get the cushioning power of SumoSprings for your coil springs and keep your ride comfortable. The wedge-shaped springs fit between the individual coils of your existing springs and help support heavy loads on your rear suspension. Lowest Prices for the best vehicle suspension from SuperSprings Intl. Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle part number CSS-1168R can be ordered online at or call 1-636-306-4830 for expert service.
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SuperSprings Intl Vehicle Suspension - CSS-1168R

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

Get the cushioning power of SumoSprings for your coil springs and keep your ride comfortable. The wedge-shaped springs fit between the individual coils of your existing springs and help support heavy loads on your rear suspension.


  • Helper spring inserts increase ride comfort and enhance your coil suspension's ability to support loads
    • Inner core of microcellular polyurethane foam provides cushioning and support
  • Adjusts progressively to the weight of your load - the more you load onto your vehicle, the stiffer they become
  • Reduces body roll and helps level your truck
  • Withstands extreme temperatures
  • Durable springs resist damage caused by abrasion, oil, road salt and UV rays
  • Installs easily on rear coils
    • Inserts between the individual coils of each coil spring
    • Custom fit for your vehicle
  • Requires no maintenance
  • Includes 2 helper springs
  • Made in the USA


  • Application: rear coil spring suspensions
  • Designed to work with a suspension system that is in good working order
  • Coil SumoSprings will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's weight limit for your vehicle.
  • Dimensions:
    • Overall height: 3"
    • Inside groove height: 1-3/4"
    • Diameter: trim to fit
  • Limited Lifetime warranty
  • 30-Day satisfaction guarantee

Insert these helper springs in between the individual coil loops in your rear coil springs to defeat driver fatigue and add better support for heavy loads. Most factory coil suspensions have a difficult time hauling added weight. The rear coils may struggle with supporting the extra load placed on your rear axle when you're towing a trailer or using a hitch-mounted cargo carrier or bike rack. If your coil springs are totally squished under a load, the lack of shock absorption can be harsh on your backside, especially if you spend long hours sitting in your vehicle while driving to your campsite.

Coil SumoSpring installed between rungs of coil spring

Inside each helper spring, a core of microcellular polyurethane foam adds cushioning between your coils to make your ride more comfortable. Each doughnut-shaped spring has H-shaped channels at the top and bottom that fit to the rung of an individual coil in your rear coil springs. The cushioning absorbs shock, but also works progressively to better support weight, keeping your truck level.

Unlike air springs that fit inside your coil springs, these polyurethane springs require no air pressure monitoring, and they are easier to install. Say goodbye to air lines, valves and air tanks and hello to maintenance-free suspension support. Unbumpify your ride with Coil SumoSprings for coil suspensions.

CSS-1168 SuperSprings Coil SumoSprings Helper Springs for Coil Spring Suspension - Rear Axle

Installation Details CSS-1168R Installation instructions

This Product Fits The Following Vehicles

Customer Reviews

Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle - CSS-1168R

Average Customer Rating:  4.6 out of 5 stars   (274 Customer Reviews)

Get the cushioning power of SumoSprings for your coil springs and keep your ride comfortable. The wedge-shaped springs fit between the individual coils of your existing springs and help support heavy loads on your rear suspension.


Installed the CSS-1168R Coil SumoSprings Custom Helper spacers on a 2011 Honda Ridgeline 4 wheel drive rear springs. Installation took about 45 minutes including removal of tires. Once spacer was started the installation was easy.
Zip ties were a little more difficult because of the dust strut covers installed by Honda.

Excellent product. Holding up great. When towing my camper, the squat is less the 1. Much better then before when 3 was the norm.
Thomas - 09/20/2021


Did exactly what I needed it to do.
I am supper strong to put this on.
Recommendation: Read the instructions, I did and took 1hr maybe. Also, use a dull wide screwdriver and slowly work around the coil.

2004 Toyota Highlander

I could not place the SumoSprings in the middle of the coil springs to start installation. Rather I had to start lower on the coil springs, where the spacing is wider, and then slide the SumoSprings up to the middle.
I used a screwdriver run into the holes for that purpose to help slide the SumoSprings to the middle of the coil springs. Otherwise, the installation went well. There seems to be less squat in the rear of my '04 Highlander when my camping trailer is attached.

There still seems to be less squat with my camping trailer attached. It is leveled out a bit.
Michael T - 08/15/2015

2007 Honda Odyssey

I received the Sumo Springs Coil Helper yesterday and was able to install it in less than an hour on my 2007 Odyssey. May be even quicker if I had a better jack(i had to lift one side at a time). My van now has raised significantly. With a three Mountain bike rack, camping gear loaded with the roof box, the van's rear end was too sagged. I gained close to two inches after installation. I do notice a difference in the cushioning, but that is very marginal. Overall, I am very happy about this product and would recommend if your car's rear end needs a lift/ support. Installation was very simple with the hand soap applied. I will do a follow-up review after few weeks when I put a few hundred miles for my summer trips.


Installation was a little challenging, but once I figured out the trick to get the spring installed the installation became easier. The springs off set 4 passengers and two bicycles that we also added with a hitch to our Honda Fit.

The Sumo Springs were a little challenging to install on my Honda fit but was able to get them installed. The Sumo Springs were installed in conjunction with the Draw-tite hitch and Swagman bike rack to level out rear of car with to ebikes installed. The sumo springs handles the roll and pitch during lane changes and turns.
Joe O - 01/27/2022


I drive a 2022 Ford Expedition Max. Installation was a breeze; it took longer to take off my wheels than to install these. Be sure to soak them in soapy water and they'll slide right on. The plan is to tow a 30' trailer. I have not towed yet but will update after some experience.


I put these on my 2016 Expedition EL Ecoboost after buying a travel trailer. The truck had plenty of power but as anyone could exped the IRS Sucks under heavy load and our first trip from east bay to Anehime made everyone sick from all the sway. I'm here to tell you this is the best $80 I have every spent upgrading any of my vehicles. I have since sold that trailer and now tow a heavier 28' TT and it pulls amazing. surprisingly it only affects the spring rate at fuller compression which is great for towing. Normal driving with no trailer feels exactly the same.


Products were as described and the install video made it a cinch!

2014 Ford Expedition

I installed on a 2014 Ford Expedition EL. I should have done this last year, it made it handle like it was new again both loaded down and when it was just me driving. It also retained the stock ride feeling with no harsh or roughness to speak of. For the folks that have a strut style rear suspension and put any kind if weight in their suv's and/or pull a tralier, this is a must. Also, no mentionable increase in ride height.


Installed on the rear of a 2018 Expedition, I pull a travel trailer thought these might help out. Very easy to install. Raised the vehicle about a 1/4” in the rear.

2006 Ford Expedition

I tow a 32ft travel trailer with my 2006 Ford Expedition. I am not over my max tow limit but I am close to it. while towing even with my weight distribution hitch I felt the vehicle had too much front lift and too much rear squat for my liking. After looking around and not finding a lot of towing accessories for my vehicle I found the Sumo Coil Springs and decided to give them a try. Install was pretty easy and I did remove my wheels to give me more room to work. after installing the Sumo Springs I found that stock ride height had increased by about 1/2" to 3/4" in the rear and the ride quality had not been realy changed. After hooking up my travel trailer I now have an acceptable rear squat of about 1 1/2" and the front lift is only 1/2" and the trailer tows great.

Hello Patrick, I still thing the springs are great. They seem to still function today the same as they did a year ago. The only thing I had to do to the was install better and more zip ties on the springs than what came with them in the box, to better hold them in their proper position.Thanks for the follow up.
JAMES A - 04/10/2014


I was looking for an alternative way to help my cars suspension when having additional passengers or bicycles or other items in tow, These Sumo spring helpers are the solution. My 2012 Chevrolet Malibu suspension has it's normal comfortable ride yet is able to assist when I add a little more weight to the car. I also want to thank etrailer and the team again for their abundant information and helpful videos to make my decision making much easier. The team at etrailer is always friendly and knowledgeable too. This is why I always seek them out and share with others about them too.


These were a big help on an overloaded minivan. I carry a heavy hitch mounted bike rack and 4 mountain bikes, and then load up for a normal week's vacation of camping. The Helpers worked like magic, and kept the back end from bottoming out and helped give a little extra clearance when it comes time for backing out of descending driveways and speed bumps. They installed easy, and greatly improved the ride, and performance of the van. Well worth the time and money spent. Go for it, especially if your packing too much fun into a family minivan.


I have not installed these yet, but the searching process and ordering process was simple. Shipping was very fast. Thanks

2009 Ford Expedition

Not as easy to install as noted in the documentation; Otherwise, they are performing as advertised. I have not lost the ride quality yet I noticed a difference pulling our fully loaded trailer with the Jeep or the bikes. Much better handling. I would have preferred air bags, but these are doing the job.

Excellent! Working as advertised all this time. Thx you.
A. f - 09/01/2019

2007 Toyota Highlander

Here's my story and I'm sticking to it. First off, the Toyota Highlander is built on a car suspension, not a truck suspension, so a lot of the towing accessories you can get for trucks do not apply. I have a boat and trailer that weight approximately 2200 lbs, and the tongue weight although not too big causes the rear end of my highlander to sink a bit more than I'd like, and you could feel the car suspension bounce a little bit too much when the trailer bounced. I purchased this product and had my mechanic install it. It did just what I expected, and the ride is much better now. Plus when the trailer is not attached, the little bit of rise makes the vehicle look meaner to the point where I might just paint sharks teeth on the front bumpers (okay maybe not, but I thought about it).

2007 Honda Ridgeline

The product is great; no issues with it. I specifically ordered the CSS-1168R with "R" supposedly meaning rear. I ordered this although other places were selling it cheaper thinking I was getting something specific for the rear. As it turns out, they are the same and now I'm waiting for a refund of the difference. I hope it doesn't take too long for this to process.

2009 Honda Ridgeline

I installed the SumoSprings on a 2009 Honda Ridgeline to be able to tow a Winnebago 2106 trailer. With the springs installed I have had no problems towing. The Trar as I call it, part Truck and part Car does not dip / sag with the trailer connected. Practiced emergency braking and did not have any problems. I would recommend this product. Did not take any pictures with it connected, sorry. They were pretty easy to install, the soap and water helped a lot.

2021 Ford Expedition

They work as advertised

2013 Toyota Highlander

I installed these on my 2010 Toyota Highlander FWD before starting a year long trip towing a 18ft camper trailer around the western USA. The Highlander did not have any options to “beef up” the rear suspension, so I installed these on the rear springs. They improved the ride and reduced the rear end “squatting”. We are 7 months and 13,000 into the trip and they are still doing great.

2016 Ford Expedition

Purchased the Coil Sumo Spring for my 2015 Ford Expedition 4x4. First, the guys at etrailer provided me with awesome customer support when I inadvertently ordered the wrong product. They were able to quickly get the correct part shipped to me.

I normally tow a 16 ft. enclosed trailer which would cause my Expedition to seriously squat due to the IRS setup. Needless to say, this was not safe for towing as it noticeably unloaded my front wheels. After a little research, the Coil Sumo Spring seemed like an easy way to alleviate some of this issue, so I made my purchase. Product arrived a day earlier than expected and showed no signs of damage.

I watched a few videos online and discovered that most people struggled getting the sumo spring installed. I appeared to me that the install would be straight forward for anyone with little to moderate mechanical skills. I prepared me vehicle by jacking the rear and setting the frame rails on jack stands. Following removal of both rear tires, I cleaned the coil springs with dish soap as indicated on the included instructions. I then put straight dish soap on the coil sumo spring to ease installation. The sumo spring went in with minor effort on my part on both sides. Start to finish was a total of 55 minutes.

With the sumo springs installed, my Expedition's static ride height was raised about 1". Unloaded ride quality seems to have improved slightly by reducing the "bounce" Expeditions tend to have in the rear. It feels more controlled over bumps and planted to the ground. With the before mentioned trailer hooked up, there was considerable less squat. The feel of the road via the front wheels was dramatically improved. I feel more confident pulling the trailer as the tow vehicle and trailer are now level.

I highly recommend the Coil Sumo Spring for anyone with a similar vehicle. Even if you do not tow regularly, the improved ride quality by reducing the bounce will be greatly appreciated. The customer service from the etrailer folks was top notch!

2014 Toyota Highlander

2014 Toyota Highlander
These Highlander
things have the wiggles & leans badly, certain roads are worse than others, but after I installed these (About 20 Min. Total and Very Simple.) There is a definite improvement !

Although these seem way over priced, I am hoping they will last a heck of a long time, but only time will tell??

So If you can afford them it will make a positive improvement and dampen those dreaded wiggles & leans. I have yet to pull my trailer or add the wheel chair lift,but I am happy just with the way they are without it.


Great product! The install wasn’t the easiest but once I got’em going they went right in. I did have to readjust my weight distribution hitch because the rear end was about 1.5” higher before installing.


Overall I'm happy with these booster springs. They went on in about 25 minutes total time, and they improved the sagging in the rear when we're loaded up with people or have the boat trailer hooked up. Will increase the rating to 5 stars once I make sure they continue to their job even after repeated loading cycles.

Ford Expedition

I have had these for a year now. They were easy to install. I pull a 6500lbs. travel trailer with my Ford Expedition. And a 3500lbs. enclosed trailer. After install I have noticed less rear sagging in rear. And I have not noticed a big difference in ride Quality when not towing.

Show More Reviews

See what our Experts say about this SuperSprings Intl Vehicle Suspension

  • Comparing SuperSprings Coil SumoSprings For 2017 Honda Ridgeline
    The Coil SumoSprings Custom Helper Springs for Coil Spring Suspension # CSS-1168 and the # CSS-1168R are the same part. The "R" added to the end simply helps it work in our fit guide of products because it only fits the rear coils on your 2007 Honda Ridgeline. This part is 6-1/4 inches in diameter and 3 inches tall.
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  • What is the Difference Between the Coil SumoSprings Parts # CSS-1168 and # CSS-1168R
    All 3 options are the same Coil SumoSprings: # CSS-1168 # CSS-1168R # CSS-1168F The difference in the part numbers just has to do with R is for rear, F is for front and then we have the regular number in case someone is looking for the part to fit a specific end of their vehicle.
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  • Rear Axle Suspension Kit to Fit 2013 Kia Sorento V6 LX AWD and 2012 Hyundai Santa Fe
    The Super Springs Rear Axle Suspension Kit # CSS-1168R that you referenced is indeed a confirmed fit for the 2012 Hyundai Santa Fe. According to my contact at Super Springs there is not any confirmed fit for any of their suspension kits on your 2013 Kia Sorento LX. (We show no front or rear axle kits for that vehicle from any manufacturer.) However, there is a way to find out if there is a suitable rear axle helper spring kit to fit your Sorento. You simply need to take some measurements...
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  • Rear Suspension Enhancement for a 2006 Toyota Highlander
    Ideally you would use weight distribution but since Toyota says you cannot (consult the vehicle owners manual to confirm) then using some sort of suspension enhancement will work to take the sag out of the back of your 2006 Toyota Highlander. The Sumo Springs you actually need are # CSS-1168R for your Highlander. These will help to take out the sagging and ease some stress on the suspension.
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  • How to Install SumoSprings Custom Rear Helper Springs # CSS-1168R on a 2013 Dodge Ram 1500 Quad Cab
    SumoSprings Custom Rear Axle Helper Springs # CSS-1168R are a good choice for your application since they will provide progressive resistance as the load on them increases, and unlike complex air bag systems these Sumo helper springs require zero maintenance. I have attached the installation guide for your review. These include clear step-by-step instructions and excellent color photographs. You will need a floor jack, 2 jack stands and 4 wheel blocks for safe installation. Soapy water...
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  • Will SumoSprings Custom Helper Springs # CSS-1168R Reduce Trailer Sway on 27-Foot Travel Trailer
    The SumoSprings Custom Helper Springs # CSS-1168R that you referenced are the only rear-axle suspension enhancement we offer currently for your 2007 Ford Expedition. These rear coil helper springs are designed to minimize rear-end squat in the tow vehicle, but really will not have much effect on trailer sway. They may improve vehicle ride quality when you are not towing by providing progressive resistance to support cargo loads in the truck but they will not have a significant effect...
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  • SumoSprings Recommendation for a 2001 GMC Yukon XL
    Suspension enhancement systems like the SumoSprings part # CSS-1168R that you referenced or air systems do not add any suspension capacity to your 2001 GMC Yukon XL. They basically just allow you to maximize your towing capacities by providing additional support to help your vehicle sit more level, brake and handle better while loaded. The systems themselves have capacities that you will want to closely match to your vehicle suspension capacity. If it were me I would go with the # CSS-1168R...
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  • Weight Distribution System Recommendation for a 2012 Ford Expedition with Rear Sag when Towing
    Sounds like you are in need of a weight distribution system more than rear suspension enhancement. Except that last line where you said that you are weighted beyond your vehicle limits worries me. There's nothing available that will allow you to safely tow beyond your towing capacities. The best way to pick out a weight distribution system is to base it off of the loaded tongue weight of the setup when it is loaded and ready to tow, this figure also includes the weight of any cargo behind...
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  • Coil Sumo Spring Application for 2012 Ford Expedition 4WD
    According to the kind folks at Super Springs, the Coil Sumo Springs you mentioned # CSS-1168R will work on either the 2WD or 4WD models. It would work very well on your 2012 Expedition. To see the installation details, click on the provided link.
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  • Will Coil SumoSprings Fit a 2012 Kia Sorento EX All Wheel Drive
    The Coil SumoSprings # CSS-1168R are designed to fit a gap between coils in a spring of 1-3/4 inches. For your 2012 Kia Sorento they could potentially be used if the space between the coils of the springs is 1-3/4 inches. They are listed as a fit for the 2012 Hyundai Santa Fe which is very similar to the Sorento (many of the same aftermarket parts fit both vehicles). But there was a chassis change in 2012 so the SumoSprings may not work unless that gap is 1-3/4 inches.
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  • Will Coil SumoSprings Reduce Sag on a Lifted 2013 Ram 1500 Sport Crew Cab
    The SumoSprings, # CSS-1168R, will prevent the coil springs from traveling as far as they normally would. Depending on how much sag you are experiencing these may or may not eliminate the sag. They will take care of some sag but if it is a significant amount they may not take care of all of the sag.
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  • SumoSprings for 2006 Honda Ridgeline
    While we do have a suspension enhancement option for a 2006 Honda Ridgeline, the part you mentioned is for a different model year. The only suspension enhancement for an '06 Ridgeline is for models that have the factory tow package and is the following: - Coil SumoSprings Custom Helper Springs # CSS-1168R The price is on the product page, and I have added a link to the instructions for you to check out as well.
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  • How Will Non-Loaded Driving Be Impacted Using Coil SumoSprings Helper Springs
    The Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle # CSS-1168R will work progressively to add more support to your 2010 Toyota Highlander when needed. It won't impact the ride of your vehicle when there is little or no load, but you will notice a difference as the weight is added in the support by reducing squat and helping with shock absorption.
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  • Will This Fit A 2011 Ridgeline 4 Wheel Drive?
    The Coil SumoSprings Custom Helper Springs for Coil Spring Suspension # CSS-1168R is designed to fit the rear axle. If your 2011 Honda Ridgeline is four wheel drive, that's fine but these are not designed to go on the front suspension.
    view full answer...
  • Suspension Enhancement System for a 2022 Ford Expedition to Support the Rear End When Towing
    For your 2022 Ford Expedition we have the Coil SumoSprings Custom Helper Springs for Coil Spring Suspension # CSS-1168R. These helper spring inserts increase ride comfort and enhance your coil suspension's ability to support loads. They adjust progressively to the weight of your load so the more you load onto your vehicle, the stiffer they become. They install easily on your rear coils, you just insert them between the individual coils of each coil spring.
    view full answer...
  • Coil Sumosprings to Address Rear End Sag on a 2014 Ford Expedition El 4x4
    The only suspension enhancement option we have for your 2014 Ford Expedition 4X4 is the Coil SumoSprings Custom Helper Springs for Coil Spring Suspension item # CSS-1168R. The wedge-shaped springs fit between the individual coils of your existing springs and help support heavy loads on your rear suspension like the ones you are experiencing. These are designed to keep your coil springs from fully compressing which will help level out your Expedition.
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  • Recommended Suspension Enhancement for 2018 Kia Sedona
    We do have a rear suspension enhancement option for your 2018 Kia Sedona, the Coil SumoSprings Custom Helper Springs for Coil Spring Suspension # CSS-1168R. These helper spring inserts will enhance your coil suspension's ability to support loads. They adjust progressively so the more you load into your Sedona the stiffer they become, which will help reduce the squat in the back and keep you level. These have a simple installation process and require no maintenance. I have attached a...
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  • SuperSprings SumoSprings Fitment For 2017 Ford Expedition EL XLT
    The Coil SumoSprings Custom Helper Springs # CSS-1168R have been used and fit on some Ford Expeditions. To confirm the proper fitment on your 2017 Ford Expedition you will need to measure the distance between your rear coil springs. If your coils measure any further than 1-3/4" as the vehicle sits on the ground without any additional weight than this will not fit your Expedition. If you find that your springs gaps are more than 1-3/4" please let me know what you have and I will determine...
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  • Coil SumoSpring Fit for 2015 Ford Expedition 4WD
    The # CSS-1168R isn't a confirmed fit, according to SuperSprings. SuperSprings doesn't offer a confirmed CoilSumo Spring fit, but they might have an option that will work for you. With the vehicle sitting on the ground, measure the distance between the coils on the coil spring near the center of the spring as shown in the provided photo. If you can reply with that dimension, we can make a recommendation for a Coil SumoSpring that will work for you.
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    Image 1 for
  • Determining Which Rear Suspension Enhancement Fits 2007 Honda Ridgeline RTS 4WD
    There may be an option for you, but unfortunately there are no confirmed fits for the rear suspension of your 2007 Honda Ridgeline RTS 4WD. The Coil SumoSprings # CSS-1168R you were looking at are only confirmed to fit 2WD models. With that said I recommend measuring the distance between the center coils of your rear coil springs with the vehicle on the ground. With this information I can check with SuperSprings to see if there is an option that will work with your vehicle.
    view full answer...
  • Suspension Enhancement For 2018 Ford Expedition to Help With Squat
    Thanks for the photo, and while there are no air bags that fit your 2018 Ford Expedition, there is one option for suspension enhancement that will alleviate some of the issues you are having, which are coil springs from SumoSprings, with the correct part number being the following: - Coil SumoSprings Custom Helper Springs for Coil Spring Suspension # CSS-1168R What these do is install between the coils of your Expedition's coil springs, and they will essentially add an extra layer of...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Will the Coil SumoSprings Custom Helper Springs CSS-1145R Fit a 2016 Ford Expedition 2WD
    I spoke with Super Springs about the Coil SumoSprings Custom Helper Springs part # CSS-1168R for your 2016 Ford Expedition. The issue is not that it is not a fit but rather they have not yet had a 2WD model in to test them on. Therefore, in order to confirm compatibility I would need you to take the measurements I have attached for you. In regards to using the Coil SumoSprings with your E-Z Lift Max Weight Distribution System, this will not be an issue at all but as you mentioned you...
    view full answer...
    Image 1 for
  • SumoSprings Suspension Enhancement for 2014 Toyota Highlander
    For your 2014 Toyota Highlander the only suspension enhancement we offer is the SumoSprings kit part # CSS-1168R which fits between the coils of the springs. We do not have any air bag solutions but the advantage this kit has over the air bag solutions is that it's a much easier install and you never have to worry about checking air pressure or basically any maintenance at all. You basically install it once and never have to worry about it.
    view full answer...
  • Suspension Enhancement Recommendation for 2008 Ford Expedition
    We have suspension enhancement that fits your 2008 Ford Expedition but we do not have an air bag style for your vehicle. Instead we have the SumoSprings part # CSS-1168R which installs easily by fitting through the coils at the rear suspension. It also doesn't require any maintenance once installed like air bags do as they require inflating and deflating to get optimum support. This gives you the support you need and requires no adjusting.
    view full answer...

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