SumoSprings Solo Custom Helper Springs - Rear Axle
(2251 reviews)
Price: $253.99
In Stock
SumoSprings Solo Custom Helper Springs - Rear Axle
Item # SS65FR
Retail:$284.99
Our Price: $253.99
You Save: $31.00
Will this fit?
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
In Stock
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
- All Info
- Reviews (2251)
- Q & A (0)
- Photos
SuperSprings Intl Vehicle Suspension - SS65FR
- Jounce-Style Springs
- Rear Axle Suspension Enhancement
- Light Duty
- SuperSprings Intl
1,000-lb Capacity. Upgrade your vehicle's rear suspension with these maintenance-free helper springs. Sturdy microcellular urethane springs cushion bumps and help support a heavy load to level your ride and minimize sway. No-drill installation.
Features:
- Helper springs upgrade your vehicle's rear suspension for improved driver control and comfort
- Keep your vehicle level when you're towing or hauling a heavy load
- 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
- 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 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
- Simple, no-drill installation
- 2 Jounce-style springs included
- Made in the USA
Specs:
- Weight capacity (at 50-percent compression): 1,000 lbs
- SumoSprings will not increase your vehicle's weight-carrying capacity
- Limited lifetime warranty
- 30-Day satisfaction guarantee
Rear Suspension Support
Towing or hauling a heavy load can cause rear 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 weight of your vehicle. 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 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 closed-cell urethane material allows for smooth contact between the springs and your vehicle. And the springs act like a shock absorber to dampen road vibration.
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.
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 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.
The helper springs are custom designed to fit your vehicle, and they install easily - no drilling required.
SSR-217-40 SuperSprings Sumo Springs Solo Rear Vehicle Suspension Kit for Trucks
Installation Details
This Product Fits The Following Vehicles
- 2019 - 2024 GMC Sierra 1500 2 Wheel Drive
- 2019 - 2024 GMC Sierra 1500 4 Wheel Drive
- 2022 - 2022 GMC Sierra 1500 Limited 2 Wheel Drive
- 2022 - 2022 GMC Sierra 1500 Limited 4 Wheel Drive
- 2019 - 2024 Chevrolet Silverado 1500 2 Wheel Drive
- 2019 - 2024 Chevrolet Silverado 1500 4 Wheel Drive
- 2022 - 2022 Chevrolet Silverado 1500 LTD 2 Wheel Drive
- 2022 - 2022 Chevrolet Silverado 1500 LTD 4 Wheel Drive
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
- Product did not meet expectations
- Alternate product found
- Did not arrive in time
Customer Reviews
SumoSprings Solo Custom Helper Springs - Rear Axle - SS65FR
Average Customer Rating: 4.7 out of 5 stars (2251 Customer Reviews)
1,000-lb Capacity. Upgrade your vehicle's rear suspension with these maintenance-free helper springs. Sturdy microcellular urethane springs cushion bumps and help support a heavy load to level your ride and minimize sway. No-drill installation.by: Charles 02/09/2024
2022 Chevrolet Silverado 1500
Have not made a rv trip yet. But when I make long curve at high speed , I can feel my truck leaning and then it firms up when the Sumo contacts the bump stop.
by: Howard03/06/2021
Installed these today on my 2020 Silverado Z71 4WD w/3.0 Duramax. Pretty straight forward installation. Took longer to find the right length extension than to install one side. I opted to leave the supplied spacer out at this time...it has an approx. 1/2" gap at the bottom. I'll tow my boat first to see if I need to add the spacer. Boat dropped the rear end approx. 2" before adding these springs. I appreciate the option to install the spacer without needing to order one later. I will update this after I see if the spacer is needed.
by: Stan 04/24/2024
Solved the problem on my 1/2 ton pickup
by: Robert 11/19/2021
2019 Chevrolet Silverado
Installed these SumoSprings on my 2019 Silverado RST 4x4 to help reduce bounce/sway when towing a small travel trailer. Very easy and fast installation (less than an hour total) and a perfect fit. Haven't towed trailer yet, but did hook up trailer and found the SumoSprings reduced truck rear sag by about an inch. Believe this will be a big improvement over stock bumpstops.
by: Jon 07/07/2023
great addition, helps minimize sqatting when loaded, esp. since i put 2" leveling kit in front. Easy install.
by: Fernie11/28/2021
Work great!!!! Super easy install. Took me 20 minutes to install both springs. They reduced the sag on my Silverado by a little over an inch when hooked up to our RV.
by: James06/13/2022
Too short. Even with the 1” spacer. Rear leafs compress 2” before the sumos even make contact. Another 1/2” and I’m already squatting. Did nothing to reduce sag. Stock 2020 Chevrolet 1500 WT. 2wd.
Sierra K.
6/24/2022
I contacted the manufacturer and showed them your photos. It is very rare, but your truck is taller than most. They will send you a taller spacer.
by: Brad06/13/2021
2020 GMC Sierra 1500
Firmed up rear suspension without sacrificing smooth ride. Loctite was missing in shipment, it great customer service worked with to to send credit for the purchase I made. Great company!
by: William 06/22/2023
I've had this part before on my older truck. This is the cheapest I found it at. And the delivery was lightning fast. Great looking out for your customers. They message me asking if my package was delivered good. Keep up the great work.
by: Chet 10/30/2022
My travel trailer pulls a lot better now. The SumoSprings reduce squat, reduce sway, and improve steering and handling. The ride is smooth too. They were really easy to install. You'll thank yourself for buying them.
by: Scoot Dan07/09/2022
Best place to buy parts and accessories. Excellent customer service! (Shout out to Christian). This company goes above and beyond. Fast shipping.
Summo springs came well packaged and included all parts. Took less than a hour to install. Based off of my setup on my 2019+ Chevrolet Silverado RST with RAS already installed, I did not use the 2” spacer. The summo springs helped my rear sag issue when having max cargo capacity inside the truck and pulling a 7200 pound travel trailer on a 5 hour trip.
Great product. Works as expected.
by: Richard03/27/2022
2020 GMC Sierra 1500
I have not put them on yet. They appear to be well built.
Richard
3/29/2023
I like them. They do not touch the axle when empty. When I hook up trailer, they help kepp vehicle level.
Heather A.
4/7/2023
Perfect, you should have a 1/2" to 1" of space between the spring and the axle when empty for a comfortable ride.
by: Jeff04/21/2023
I’m not sure if they are working as advertised or not. Hauling about 6000 with a half ton and there still is some sag. Maybe I should have purchased the black ones which are stiffer. Saying all this, I do believe they work as a lot of the sag has been eliminated.
by: Jon 09/06/2022
GMC Sierra
Really improved my ability to trailer my boat. Took away the bouncy bounce of the wimpy stock springs on my GMC Sierra. Made every day driving a better experience when cornering and hitting bumps.
by: Alan 07/10/2022
I have used these for a year and still going strong. They work great. I can connect my 20ft boat and doesn’t squat the back of the truck much at all. Also when pulling the camper it takes the bounce out. Cheaper and easier than air bags
by: Patrick 10/28/2021
Went OK once jacked up high enough.
Patrick
10/29/2022
Good! Truck sits almost dead level with camper hooked up with weight distribution hitch.
by: Hunter P05/26/2021
2020 Chevrolet Silverado 1500
Can’t go wrong with these helper springs! They work really well for me, with hauling heavy equipment on trailers. Great product, great service and fast shipping.
by: James 01/04/2022
got delivery right away, easy to install , book said 1 hr and it was, rotated tires with it. easier with tires off. raised my truck 2" with the trailer on. just what i wanted ( hate saggy trucks ).
by: Larry04/06/2022
I probably should have purchased the air suspension
by: Hl07/17/2022
2021 GMC Sierra 1500
Have yet to put them on but a friend of mine got them said they’re very good product. Quick delivery
by: Ronald 07/04/2021
Fast shipping and installed within 45 minutes so far the ride has stiffened up while unloaded but not bad I did use the spacers and they pretty much about touch the rear end when unloaded but so far happy with them have not pulled the camper yet
by: Rick 11/24/2021
Chevrolet Silverado
Worked perfect on my 2021 Silverado trail boss. Install took about 30 mins with basic tools. 30 foot bumper pull camper hardly squats pickup now.
by: Lonny 09/30/2022
2019 Chevrolet Silverado
Just the right amount of added stability in an otherwise bouncy ride. -2019 Silverado RST-
by: Jim 03/30/2021
Ez install - no ride degrading
Trailer pulling - not yet !
by: Paul 07/19/2022
2020 Chevrolet Silverado 1500
45 minutes to install, hauled 960 pounds of 10ft 2x4's truck sat level and ride was great!
25
2163
Show More Reviews
See what our Experts say about this SuperSprings Intl Vehicle Suspension
- Sumospring SS65FR DimensionsI checked with Sumosprings and the # SS65FR and the dimensions are 5 inches tall by 4 inches in diameter without the spacer.
view full answer... - How Much Space Should There Be Between SumoSprings and the Axle Pad on 2020 GMC Sierra 1500?When the SumoSprings Solo Custom Helper Springs item # SS65FR are installed on your 2020 GMC Sierra 1500 you will have a 1/2" - 1" of clearance with no additional cargo weight. This allows for you to have a comfortable ride when you are unloaded. You won't even notice you have the springs installed. The SumoSprings item # SS65FR does include an additional 1" spacer and longer mounting bolts that will allow you to add preload to your springs. This will cause your axle pad and the spring...
view full answer... - Using SuperSprings SumoSprings On a 2021 GMC Sierra 1500 With Weight DistributionYes, the SumoSprings Solo Custom Helper Springs # SS65FR will help with the bouncing that you are getting with a weight distribution hitch on your 2021 GMC Sierra 1500. The SumoSprings are progressive so they will help to absorb the bounce that the suspension is having when you go over bridges. You may notice a firmer ride when you do not have additional loads being carried as the suspension compresses due to large pot holes. The SumoSprings can be installed before or after the weight...
view full answer... - Helper Springs for a 2022 GMC Sierra 1500The SumoSprings Solo Custom Helper Springs item # SS65FR are designed to do exactly what you talked about. These springs have progressive load control that compress according to the weight of your cargo. This will eliminate the sag you get in your rear end when you are hooked up to your trailer. When the rear end of your GMC is not weighted down there is a space between the helper springs and your axle. This will enable your ride when not towing to stay comfortable and smooth. You won't...
view full answer... - Recommended Maintenance Free Suspension Enhancement for 2024 Silverado 1500For a maintenance-free suspension enhancement option on your 2024 Silverado I recommend the SumoSprings Solo Custom Helper Springs # SS65FR. These have a weight capacity of 1,000 lbs, a microcellular urethane construction, and a lifetime warranty. The SumoSprings will help keep you level, reduce sway, and absorb shock when you're towing or hauling heavy loads. They also won't have a harsh impact on your unloaded ride quality like some other options do. Keep in mind, these will not work...
view full answer... - Comparing SumoSprings Solo Custom Helper Springs for a 2022 Chevy Silverado 1500There are two SumoSprings Solo Custom Helper Springs for a 2022 Chevrolet Silverado 1500, part # SS65FR which has a 1,000 lb weight capacity and part # SS45FR which has a 1,500 lb weight capacity. The lower rated option rides smoother whereas the higher rated option provides more support. The correct one will come down to what you're towing or hauling. If you have a heavy trailer over 10K then go with the higher rated part # SS45FR but for most others under this use the lower rated part...
view full answer... - Suspension Enhancement Helper Springs For 2020 Chevrolet Silverado 1500For your 2020 Chevrolet Silverado 1500, I recommend going with a jounce-style spring. This is very low maintenance, whereas air suspension requires you to maintain correct psi levels etc. This setup will also keep the factory ride quality since they do not engage with an empty load. Depending on the weight of your load or trailer, you could go with either the SumoSprings Solo # SS65FR or the SumoSprings # SS45FR. The # SS65FR has a 1,000lb maximum tongue weight, whereas the # SS45FR has...
view full answer... - SumoSprings for 2021 Chevolet 1500 Trailboss w/ Factory 2 LiftI reached out to my contact at SuperSprings to determine the best helper spring for your 2021 Trailboss truck. You were comparing the SuperSprings # SS45FR with the SuperSprings # SS65FR. These helper springs will have about a 1" gap before they contact the suspension and then they will compress and further support your load, so there will still be just a little bit of squat at the back of the truck. The # SS45FR springs are bigger and will support more, whereas the # SS65FR springs are...
view full answer... - Will SumoSprings Help Sag With 2020 GMC Sierra 1500 But Keep Ride When Not TowingThe SumoSprings will do a fantastic job helping eliminate sag when you are towing with your 2020 GMC Sierra 1500 Denali, and won't affect your smooth ride when you are not towing. The reason is, when installed, if you aren't towing there will be a space between the SumoSpring and your axle and the spring won't come into contact with it. The only time you might feel it slightly is when going over a particularly large bump, but otherwise it won't be noticeable. There are two SumoSprings...
view full answer... - Cost-Effective Suspension Enhancement For 2021 GMC Sierra 1500 Towing Light Travel TrailerThe most cost-effective option that will give your 2021 GMC Sierra 1500 a more level, stable ride when you are towing your travel trailer is from SumoSprings, and there are two options with different capacities: - 1,000 lb Capacity: SumoSprings Solo Custom Helper Springs # SS65FR - 1,500 lb Capacity: SumoSprings Solo Custom Helper Springs # SS45FR The 1,000 lb capacity # SS65FR is what you will want to go with for a 5,000 lb travel trailer as that's more than enough capacity to handle...
view full answer... - Recommended SumoSprings For 2021 GMC Sierra 1500 Carrying 1000lb Golf Cart In BedFor your 2021 GMC Sierra 1500 carrying a 1000lb golf cart I recommend the SumoSprings Solo Custom Helper Springs # SS45FR (black) which have a 1500lb load leveling capacity. While this is a little more than you need for your golf cart, this will be a slightly stiffer spring so it will do better at preventing sag with the golf cart loaded than the # SS64FR (blue) you were looking at with a 1000lb capacity. Since these springs are so much softer than Timbrens, going with the 1500lb springs...
view full answer... - Recommended SumoSprings Solo Custom Helper Springs for a 2019 GMC Sierra 1500 Towing 5th WheelI recommend the SumoSprings Solo Custom Helper Springs part # SS45FR for a 2019 GMC Sierra 1500. The extra support this higher rated set offers would be ideal for larger trailers like a fifth wheel. The SumoSprings Solo Custom Helper Springs part # SS65FR would be better for smaller travel trailers.
view full answer... - SumoSpring Recommendation for a 2022 Chevy Silverado 1500 LTD TrailbossFor your 2022 Chevy Silverado 1500 LTD Trailboss you can either use the SumoSprings # SS65FR which is rated for 1,000 lbs or the SumoSprings # SS45FR which are rated for 1,500 lbs. I honestly just recommend going with the higher rating. SumoSprings is known for retaining the great OEM ride quality of trucks so having the extra capacity just means you'll get more support if you ever need it. Please note that a suspension enhancement system will only add some help to a current suspension...
view full answer... - How Much Space Should There Be Between SumoSprings And My Axle Pad On 2021 Chevrolet Silverado 1500?With the SumoSprings Solo Custom Helper Springs # SS45FR or # SS65FR installed on your 2021 Chevrolet Silverado 1500 with no additional cargo weight you will see 1/2" of clearance between the spring and your axle pad. This allows for you to have a comfortable ride when you are unloaded. SumoSprings does include an additional 1" spacer and longer mounting bolts with both kits that will allow you to add preload to your springs if so desired. This comes in handy if you always have additional...
view full answer... - SumoSpring Helper Spring Recommendation for Lifted 2020 Chevy Silverado 1500Is this a body lift or a suspension lift? If it's a body lift which increases the distance between the frame and the body mounts, the lift won't affect which SumoSpring product you need. If that's what you have, I'd recommend the SumoSprings # SS65FR. If you have a suspension lift, I'll need to know the vertical distance between the frame member and the top of the axle beam when the camper is hitched, and when it is not hitched. I can get that information to SuperSprings, and see what...
view full answer... - What is Difference Between SumoSprings Kits SS45FR and SS65FR that Fit 2021 Silverado 1500There isn't an actual height difference between the SumoSprings Solo part # SS45FR and the # SS65FR that fits your 2021 Chevy Silverado 1500. The difference is related to the capacity. The 45 has the higher 1,500 lb capacity and the 65 has a 1,000 lb capacity. Both of these fit the Trail Boss models without any additional spacers.
view full answer... - Will the SuperSprings Sumo Springs SSR-209-54 Also Fit on a 2020 Chevy Silverado 1500I checked with my contact over at SuperSprings and he tells me that the SumoSprings Solo Custom Helper Springs SSR-209-54 you mentioned- part # SS45MR -is not specifically designed for the new body style of the 2020 Chevy Silverado 1500 but will fit. This was also confirmed by our install team that it can be installed on your 2020 Silverado 1500; it's just not designed specifically for this truck as the # SS45FR and # SS65FR are. Depending on what you're towing or the size of the payloads...
view full answer... - Will RoadActive Suspension Change Ride Height on 2021 Sierra 1500 With 2 Inch Factory LiftThe # RAS4611 RoadActive Suspension Kit is a confirmed fit for your 2021 GMC Sierra 1500 AT4. This works with your factory 2 inch lift. These springs are customizable and may be adjusted during installation. They also automatically adjust to your vehicle's load. They only down side here is they may increase the height of your vehicle which is what you have asked to avoid. According to RoadActive, most vehicles fall into the range of gaining 1/16" to 1-1/2" lift. It is hard to determine...
view full answer... - Will the SumoSprings Solo Custom Helper Springs Fit a 2021 GMC Sierra 1500 AT4The SumoSprings Solo Custom Helper Springs - Rear Axle # SS65FR are confirmed to fit your 2021 GMC Sierra 1500 AT4. However, I would not recommend them. Since the AT4 has a 2" lift, the SumoSprings would likely be ineffective unless you are experiencing a lot of sag under a heavy load. They already require some sag before they engage, so the additional lift will increase the distance they need to move before they start to work. Instead, I recommend the RoadActive Suspension Custom Leaf...
view full answer... - Is There A Spacer Kit For SumoSprings Solo Custom Helper Springs To Fit A 4" Suspension Lift SumoSprings Solo Helper Springs unfortunately aren't really designed for lifted trucks and the manufacturer only recommends using up to a 2" spacer so the # SS65FR isn't going to be the best solution for you. Instead you'll want to go with an option like the SuperSprings Custom Suspension Stabilizer and Sway Control Kit # SSA28. This attaches to the leaf springs and provides extra support for your suspension to prevent sag and reduce sway, without compromising ride quality.
view full answer... - Can SumoSprings And RoadActive Suspension Be Used Together On A 2021 Chevy Silverado 1500I spoke with RoadActive Suspension as well as SumoSprings and though neither have used their products together, they both said there will be absolutely no problem doing so. These will install completely different from each other and there will no issues with interfering or anything like that. So with that being said, if you wanted to get the SumoSprings Solo Custom Helper Springs # SS65FR installed along side your RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS4611, you...
view full answer... - Recommended Suspension Enhancement for a 2022 GMC Sierra 1500To level out the rear end of your 2022 GMC Sierra 1500 when you are towing, you will want to use the SumoSprings Solo Custom Helper Springs item # SS65FR. This springs have a 1,000 lbs capacity which will be perfect for handling your travel trailers tongue weight. The reason I recommended the SumoSprings is because of their progressive load control design. These springs compress based on the weight added to them. When you are not towing or hauling a heavy load these springs will not affect...
view full answer... - What Timbren Rear Suspension Springs Fit a 2024 GMC Sierra 1500? The Timbren Suspension Enhancement System # T28MR is the kit which will fit your 2024 GMC Sierra 1500. Do understand this is a very heavy duty spring with a weight capacity of 8,600lbs. This will most likely give you a less than desirable ride quality. Instead I recommend checking out the SumoSprings in a 1,000LB # SS65FR or 1,500LB # SS45FR capacity. These are much more inline with the weight capacities of your Sierra. And as these are a progressive material it will not be as harsh of...
view full answer... - Comparing The SumoSprings Solo Customer Herlper Springs # SS45FR And # SS65FR The SumoSprings Solo Custom Helper Springs # SS45FR and SumoSprings Solo Custom Helper Springs # SS65FR both have the same fitment but have different weight capacities. The # SS45FR is rated for 1,500lbs while the # SS65FR is only rated for 1,000lbs.
view full answer...
Do you have a question about this Vehicle Suspension?
Info for this part was:
Installed by:
Jeff D
Installed by:
Jacob H
Expert Research:
Jameson C
Video Edited:
Joshua S
Video Edited:
Chris R
Updated by:
Wilson B
Updated by:
Noah M
Edited by:
Daron K
Written by:
Alex H
Test Fit:
Aidan B
Video by:
John S
Video by:
Thomas T
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Product Experts Available Now!
Call 1-800-940-8924
Robert
11/20/2022
After using the SumoSprings for a year now, I found them to very helpful when towing either my travel trailer or boat. Rear sag on the truck is reduced about an inch and towing is much more stable with reduced bounce. Excellent product.