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Expert Answers about Trailer Leaf Spring Suspension


  • Does TrailerLegs Tire Saver Stands for Trailers Require Leaf Spring Suspension
  • The TrailerLegs Tire Saver Stands for Trailers w/ Leaf Spring Suspensions # 326-TRLLG-4 were designed to be used with trailers that have leaf spring suspension. They can't be used with torsion axles suspension but if for some reason you had a straight axle with now suspension this could work.
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  • Will Installing Timbren Silent Ride Suspension Help Improve the Suspension for 7K Tandem Axles
  • The Timbren Silent Ride Suspension for Tandem Axles, # TSR14KT01, was designed to eliminate the problems that traditional leaf spring trailer suspension encounter on travel and 5th wheel trailers. (The Silent Ride system will bolt right up to the frame of your trailer and allow your tandem 7k axles to connect to the Timbren system. The Silent Ride system uses Aeon rubber springs to supply cushion and absorption of road shock. Tension from the Aeon rubber springs, as well as absorbing shock,...
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  • 2020 Ford F-150 Suspension Upgrade to Help Reduce Sway
  • Whenever you tow a trailer, or put a lot of weight on the rear of your F-150 the leaf springs start to flatten out, and typically the ride geta very stife. Not to mention the sag in the rear end. The back goes down, and the front raises up. Which leads to less traction on the front tires, reduced braking and porpoising. To help the sway and bounce when towing your trailer I recommend the RoadActive Suspension Custom Leaf Spring Enhancement Kit. For 2WD # RAS3611-B, and for 4WD # RAS3611-Y. This...
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  • Recommended 27 inch Leaf Spring for my Trailer
  • If you are looking for a Leaf Spring that is 27-3/4 inches long, the closest that we offer in length is 27 inches. If your springs are worn, it is possible they were originally 27 inches long and have flattened out over time. We have a Double-Eye 4-Leaf Spring # SP-210275 that is rated for 3,500 lb Trailer Axles. This spring measures 1-3/4 inches wide and the leaf thickness is 3/8 of an inch. We also have the 5-Leaf Slipper Spring with Hook End # e67SR which is rated for 6,000 lb Trailer...
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  • Best Trailer Suspension Upgrade for Fleetwood Quantum 325RKTS 5th Wheel Trailer
  • The suspension kit I highly recommend for your Fleetwood Quantum M-325RKTS is the Roadmaster Comfort Ride Leaf Spring Suspension Kit with Shock Absorbers # RM-2460-2570 over the Lippert Center Point # LC1565391 because the Roadmaster is a complete suspension upgrade which will give you a steadier ride in all areas. Because the Comfort Ride upgrades your leaf springs and adds shocks, you get the best of everything. The improved leaf spring suspension is going to give your axles independent...
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  • Best Suspension Enhancement For 2020 Chevy Silverado 2500 Towing 5th Wheel That Wont Affect Ride
  • The best option for suspension enhancement for your 2020 Chevy Silverado 2500 that won't affect your ride is the RoadActive Suspension (RAS). This kit will offer support to your Chevy's suspension only when there is weight applied to it, like when you are towing your 5th wheel trailer. This is called an "active system" which continually reinforces your leaf spring suspension; what that means is the force normally put on your Chevy's current leaf springs will be transferred to the RAS kit,...
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  • Recommendation for Upgrading Double-Eye Springs Suspension to Remedy Trailer Lean
  • To replace the 6,000lb leaf springs on your 2014 Grand Design 337, a great option is the Double-Eye 5-Leaf Springs, # e34SR. These are 25-1/4 inches long, so to confirm they will fit your trailer, it is best to try and measure your current, unloaded leaf springs to assure proper replacement length. Typically, the number of leaves on a suspension system will not have an affect on the setup, especially when looking at leaf springs within the same weight capacity. The difference in the amount...
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  • Recommended Suspension Upgrade For 2015 Forest River Economy Trailer With Tandem Axles & 26" Springs
  • While you can upgrade to heavier leaf springs like the 4,000LB # e22YR to replace the 26" leaf springs you must understand this will not improve your ride quality for the trailer. A better option would be to install the Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers # RM82MR. This will greatly improve your ride quality by reducing chucking and separating the axles so they perform more like an independent suspension rather than being linked together by an equalizer.
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  • How To Reduce Suspension Sag On Loaded Concession Trailer
  • I do have an option for you, but a lift kit would not correct your trailer sitting lower on one side due to the weight balance favoring that side. Instead you'll need some suspension enhancement that will help to support your leaf springs to lessen suspension sag, but due to having that much weigh uneven you will always have some sag and there's just no way around that minus moving the weight around. The correct suspension enhancement will be based on axle capacity range and if your leaf...
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  • Trailer Suspension Enhancement for 3500LB Single Axle
  • I recommend the SumoSprings Trailer Helper Springs # TSS-106-40 for trailers with underslung 3500lb axles. These are designed to help cushion the ride while also absorbing some of the weight from the leaf springs. As they compress they will progressively become more stiff to reduce the load on the leaf springs. This will work on leaf springs with 3 leaves. If you have overslung axles the SumoSprings Trailer Helper Springs # TSS-107-40 will be the ones that you want.
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  • Suspension Replacement For Stock Trailer With 26 Leaf Springs
  • To refurbish the suspension on your 1970 Champ Stock Trailer you will need a handful of items. For a suspension kit with equalizers order the etrailer # e99ZR kit including 2 standard steel equalizers where width is 7-3/4” from center of mounting hole to center of other mounting hole. Includes bolts and lock nuts sized for 1-3/4” wide springs. Suspension kit does not have the size shackle straps that you need so you will want to order 8 TruRyde # TRSL275 straps measuring 2-3/4” on center. For...
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  • How to Pick Out Leaf Springs for Trailer and Suspension Enhancement with 7k Capacity
  • If you can get me the axle capacity of your trailer and the current lengths of your leaf springs I can determine which of our leaf springs would be the best choice. I was unable to locate that info. We have Timbren kits that are designed for adding additional suspension support like the part # TTRA1032 which can provide up to 7,000 lbs of additional support.
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  • Are Trailer Leaf Springs Typically Longer than Distance Between Suspension Hangers
  • Typically the leaf spring bolt hole to bolt hole dimension will be a bit longer than the distance between the suspension hangers. This accomodates for the shackle that attaches the spring to the hanger which angles out and away. I attached a picture that might help you visualize this as well.
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  • Recommended Suspension Enhancement For Occasional Towing For 2021 Ford F-350 SRW
  • Suspension enhancement is a very good idea for your 2021 Ford F-350, even with just occasional towing, but especially for longer trips as your truck will be easier to handle with a more level ride. What I highly recommend for your F-350 is the RoadActive Suspension, with the correct option depending on if you have top overload springs or not: - WITH Top Overload Springs: RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611-SLHD - WITHOUT Top Overload Springs: RoadActive...
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  • Leaf Spring Recommendation for a Trailer to Stiffen Up Suspension that has 3,500 lb Axles
  • Regardless of the amount of leaves a leaf spring has if the capacity is the same between two of them they would both flex and bottom out the same. I would recommend you have your trailer and boat weighed so that you know whether or not you are overloading the trailer/leaf springs. You should note that going to a heavier spring won't necessarily give your trailer a higher weight rating, just a higher spring rating. For a higher rated spring you would want the part # e28SR as it has a...
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  • Raising Trailer Suspension to Increase Ground Clearance
  • Yes, if your leaf springs are currently mounted to the bottom of your axles, moving the springs to the top of your axle will lift the trailer's suspension. Switching the spring location will raise your trailer suspension by the width of your axle plus the thickness of your springs. Depending on these measurements you could see a 4 to 5 inch rise in the trailer suspension. I recommend Dexter's Trailer Springs Over-Under Conversion Kit # K71-384-00 for 2-3/8 inch diameter axles or # K71-385-00...
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  • Leaf Spring Recommendation for Trailer with 5,200 lb Axles
  • Your best option would be to go with the 5,300 lb leaf springs as ideally you match the capacity exactly but if you can't then you'd go for next capacity higher. This ensures you aren't limiting the weight capacity of the trailer by the suspension and you still get soft enough suspension that it does cushion the ride. So for that we have the # SP-222275 which has a 5,300 lb capacity and measures 24-7/8 inches in length from spring eye to spring eye.
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  • Will SumoSprings Trailer Helper Springs Work With Dexter Heavy Duty Suspension Upgrade Kit
  • The SumoSprings Trailer Helper Springs part # TSS-107-40 will be installed unloaded with a greater distance than normal between the leaf springs and frame. The springs will then compress when you lower the trailer on them. Therefore, there doesn't need to be a gap between the frame and leaf springs equal or greater to the height of the springs. There will be no compatibility issues with the Dexter Heavy Duty Suspension Upgrade Kit for Single Axle Trailers part # K71-358-00.
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  • Should Trailer Leaf Springs be Replaced in Pairs
  • When in comes to replacing leaf springs on trailers we recommend that you replace them in pairs so you are using the same springs on each side of the axle. I attached a help article on trailer suspension leaf springs for you to check out as well.
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  • Can a 1,750 Pound Trailer Leaf Spring be Used in Place of a 1,000 Pound Leaf Spring
  • If a higher rated leaf spring will physically fit on your trailer you could use it but the trailer will still be rated for the same amount of weight and it will make the suspension very stiff. For a 2,000 pound axle we have spring # e84SR. But this spring is 5 inches shorter than # e54SR. To measure a spring there should be no weight on it. So the spring either has to be removed or one side of the trailer needs to be jacked up. The length measurement is from the center of one eye to the...
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