See what our Experts say about this SuperSprings Intl Trailer Suspension Parts

• Should I Upgrade to 8K Leaf Springs on My Toy Hauler with Tandem Axle Set-up 7K?
  Hello Matt, Thanks for writing in, that’s a great question. I’ve definitely heard the same concerns about the factory leaf springs on these, especially on larger toy haulers like your Wolf Pack. It makes sense to want something that’s going to hold up and not leave you dealing with sag or premature wear. When it comes to your suspension, I don’t recommend going up to 8K springs on 7K axles. That can actually create a much harsher ride and lead to more bouncing, which puts additional...
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• How to Reduce Ford F-250 Jiggling From Grand Design Travel Trailer
  There are a few different things you can do to help with this. It would also be helpful to know what kind of jiggling you're experiencing. Does it just feel bouncy and rough? Is it side to side motion? If your travel trailer weight is more than 50% of your trucks GVWR then it would be a good idea to use a weight distribution hitch which will level you out and reduce sway. If it is more like a rough ride then you could try an upgraded equalizer, shocks, or adding something like SumoSprings...
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• Solution to Prevent 2023 KZ Travel Trailer From Bottoming Out
  Hello Derek; unless the leaf springs you have now are worn out and flat you aren't going to be gaining any real height from other leaf springs. If your leaf springs run under the axle (underslung) you could move them to the top (overslung) using the Dexter Trailer Springs Over-Under Conversion Kit # K71-384-00 (2-3/8" diameter axle) or # K71-385-00 (3" diameter axle). However, I'm guessing they're already sitting on top which is the case for most travel trailers. Another option is to use...
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• Replacement Suspension Components for 2024 Big Tex 16GN
  Hi Conrad! That doesn't sound good, hopefully it didn't cause you too much of a problem when those bolts failed. I would be happy to help you find some upgraded parts. However, we don't have a way of knowing what is on a particular trailer. It looks like you have 8k axles with a slipper spring suspension on there so there isn't a lot that can be swapped out/upgraded. Depending on your bolt measurements you may be able to add wet bolts like # 126B2. If you can get your leaf spring measurements...
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• Recommended SumoSprings for a Tandem Axle Trailer w/ 7,000 lbs Underslung Axles
  Hey Jp, welcome back! Since your trailer has 7,000 lbs underslung axles, you'll want the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket item # SS33HR. This kit is rated for 5,000 lbs - 8,000 lbs axles so it's going to provide way better support than the item # TSS-106-40, you were looking at. The SumoSprings item # SS33HR are going to work great for reducing trailer sway, absorbing road shock, and they'll also help with that body roll top heavy feeling. These kits are sold...
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• Can I Use Helper Springs on My 2020 Grand Design Solitude Fifth Wheel with 2 Axles Rated at 7k?
  Hello Steve, Yes, you can most definitely add helper springs! This is a great way to improve your ride quality better while towing. I see that the 2020 Grand Design Solitude Fifth Wheel comes with 2 axles rated at 7k so you will want one of the following: If your leaf springs are located at the top of your axle you will want the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket - Single Axle - 5K to 8K - Overslung # SS26MV. If your leaf springs are located under the axle...
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• Best Sumo Springs For 2024 Open Range Roamer 364BSH
  Hello Camilo, thanks for reaching out. For your 2024 Open Range Roamer 364BSH I recommend the SumoSprings Trailer Helper Springs # SS33HR. These are made for axles rated between 5,000-lbs and 8,000-lbs. I am not sure exactly what axles are on your camper since that info is not listed online, but since your GVWR is 13,500 lbs your axles must be rated for something like 7,000 lbs apiece. I do suggest that you check your axle tag to verify the weight capacity but as long as it is between 5K...
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• Recommended SumoSprings For A 2016 Forest River Wildwood 28DBUD Travel Trailer
  Hey Lance, To determine the correct SumoSprings for your 2016 Forest River Wildwood 28DBUD we'll need to first see if your leaf springs sit above or below the axle and we'll need to know the axle capacity. If your springs sit above the axle then you have overslung suspension and if they sit below the axle you have an underslung suspension. For the capacity you likely have a 3,500-4,400lb axles but you can verify by looking at the axle for the a sticker that lists the capacity. I've separated...
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• Recommended Sumo Springs for a 2022 Grand Design Reflection 5th Wheel
  For your 2022 Grand Design Reflection has overslung axle which means your springs sit over your axle, then you can use the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket # SS26MV. If you have underslung axles meaning your springs sit under your axles, then you'd need the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket # SS33HR instead. These springs will work with 5,000 to 8,000 lbs, tandem axles, and has a simple no drill install.
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• What AllTrek4000, Sumo Springs, and Leaf Springs do I Need for My 2016 Voltage 4150 5th Wheel?
  Hello Nathan, I reached out to MorRyde, and they informed me that the SRE4000 has been discontinued and is being replaced by the AllTrek4000. I went out to our warehouse and was able to confirm that the 35" wheelbase # MR77ZR is indeed the AllTrek4000. Unfortunately, I don’t have access to a database that shows what suspension system is installed on specific campers (though it would be pretty sweet if something like that existed), so you'll need to verify your axle spacing. Based on my...
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• Air Spring Suspension System For A 2021 Forest River Stealth 5th Wheel Toy Hauler
  Hey Charles, For air springs we currently only offer the Lippert Center Point by Trailair Air-Ride Suspension Upgrade # LC1565391. This system can help improve ride quality by reducing road shock and chucking. It does require standard hangers and the hangers must be spaced either 29 1/2” or 30 1/2” apart, otherwise you'll need to redo your suspension in order to complete the install. We also offer jounce springs that can help in the same way, just without the customization you'd get...
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• What Suspension Upgrades do I Need for My 2019 Powerlite Toy Hauler 29FBXL Tandem 5,100 Axles?
  Hello Jose, Looking to upgrade the suspension on your 2019 Powerlite Toy Hauler 29FBXL? That’s always a great idea. With your tandem axle setup, it’s important to match the weight rating of the leaf springs to that of your axles. Going with a spring that’s rated significantly higher than your axle capacity can result in a stiff ride and may even cause damage to your suspension over time. You’ll need to double-check your eye-to-eye measurement on the leaf springs with the trailer unloaded,...
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• Recommended Bump Stops for 2024 Alliance Paradigm 385FL Suspension
  Hey John! I recommend the SumoSprings Trailer Helper Springs for your 2024 Alliance Paradigm 385FL. These are going to smooth out your ride, reduce sway, and help with side to side leveling. Looking at the specs for your trailer your axles must be in the 5K to 8K range. If your leaf springs sit on top of the axle (overslung) you need # SS26MV and if they run under the axle (underslung) you need # SS33HR. You will need a quantity of two, one pair for each axle. Any big plans with your 5th...
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• Recommended Suspension Enhancement for a 2024 Alliance 5th Wheel Trailer
  Thomas, I'd recommend going with the SumoSprings over the Timbrens because they do a better job of holding the weight, has more material, compresses more, and is noticeably softer. It looks like your trailer has 7k axles so you'd need the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket # SS33HR but if your axles are a different size let me know and I'll take a look for the right kit.
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• Recommended Sumo Springs for a 2010 Excel Peterson 30 RSO 5th Wheel
  Hey Mike, for your 2010 Excel Peterson 30 RSO I recommend going with the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket # SS33HR. These springs are designed for axles with a weight of 5,000 to 8,000 lbs (so you'll need two sets for a tandem axle), is made in the USA, and will increase your stability while providing great performance.
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• Can Roadmaster Comfort Ride System Install with SumoSprings on Trailer
  Hey Dale, you can install Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers # RM-2460 with a SumoSprings kit like the part # SS26MV. The SumoSpring would just engage a little earlier since it installs on top of the u-bolt plate which will be a little bit taller with the Comfort Ride system installed. Are you axles above or under the leaf springs of your trailer? The part # SS26MV is for overslung axles and the part # SS33HR is for if they are underslung.
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• Solution to Help Keep Tires From Rubbing on 2019 Keystone Cougar on Rough Roads
  Hey Brian, thanks for reaching out! The measurements you have are similar to the 4-Leaf Double-Eye Spring for 4,400-lb Trailer Axles # DX95CR so it sounds like your leaf springs aren't flattening out as of yet. If you drive on some pretty rough roads with the trailer close to max GVWR then that could definitely be why you're seeing tire marks. I recommend checking out the SumoSprings Jounce Springs for trailers to help soften the bounce from those roads. You'll just need to choose the...
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• Sidewinder Pin Box for 2022 Wildwood Heritage Glen 5th Wheel
  The ST200 turret for the # 5AS16K has been discontinued. You may be able to find it still but I wasn't able to when I ran a quick search. At this time, the only Sidewinder we offer that fits the 1621 is the # RP34FR. Also, you aren't hearing from Reese because they're owned by First Brands now. Ever since this change the wait times on the phone are extremely long and many of their parts are gone or on indefinite backorder. The # RP34FR will help with clearance but it won't do anything...
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• Recommended Trailer SumoSprings For A 5th Wheel With 5,100lb Axles
  Hey Mike, Since you have 5,100lb axles you'll want to go with the SumoSprings Trailer Helper Springs - 5K to 8K # SS26MV as long as your leaf springs sit above your axles. If they sit below your axles you'll want part # SS33HR instead.
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• Correct SumoSprings for a 2022 Grand Design Solitude
  Hey Brian, it's good to hear from you again! You need the SumoSprings Kit # SS26MV if your leaf springs sit above your axles, or the SumoSprings Kit # SS33HR if the leaf springs sit below your axles. Are you just needing to improve the handling on your trailer?
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• Will Higher Capacity Spring Bars Help With Bounce And Improve Ride Quality
  Hi Steve, You're saying your fully loaded tongue weight is higher than the spring bar capacity? I would correct that immediately with the 1,200lb capacity spring bars # FA92-02-1299 you referenced, but I don't think that will totally solve your issue. Typically if it's bouncing the spring bars are too high capacity for the tongue weight. The best course of action is to stop the road shock before it travels past your suspension. Adding in some SumoSprings to the trailer can help cushion...
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• Is There Suspension Enhancement Solution Available to Provide Additional Support to Travel Trailer
  Hey Terrell, we have SumoSprings kits that are designed to help provide additional support to the suspension of a trailer but it comes down to the axle configuration and the axle capacity to pick out correct fit. See below to see which you'd need: -SumoSprings Trailer Helper Springs w/ Line Relocation Bracket - Single Axle - 3K to 5K - Overslung # TSS-107-40 -SumoSprings Trailer Helper Springs w/ Line Relocation Bracket - Single Axle - 3K to 5K - Underslung # TSS-106-40 -SumoSprings...
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• Recommended Helper Springs for a 2026 Alliance Avenue 5th Wheel RV
  Hey Kent, congrats on the new 5th wheel trailer. For your 2026 Alliance Avenue 5th Wheel, I have two options for springs depending on how your axles are orientated with your leaf springs. If your axles sit above your leaf springs, (underslung) you'll need the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket item # SS33HR. You'll need to have 7-7/16" - 8-5/8" of space between the top of the spring plate and the bottom of your trailer's frame. If your axles sit below your...
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• SumoSpring Suspension Kit to Fit a 2025 Keystone Adacia 292SLRL
  Hey Richard, thanks for reaching out! From what I'm seeing you'll need the SumoSprings Overslung Kit # SS26MV. This fits if your leaf springs are located above your axle (see attached photo). If your leaf springs are located below your axle then you'll need the kit # SS33HR instead. Your 2025 Keystone Adacia 292SLRL has standard leaf springs, correct?
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