3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 25-1/4" Long

Ask the Experts about this Universal Group Trailer Leaf Spring Suspension

• Correct Leaf Spring for Trailer with Lippert 3,500 lb Axle
  Thank you for the photo! I was able to use the serial number on your axle to determine which is the correct replacement leaf spring for your trailer. For this, you are going to want to use the 3-Leaf Double-Eye Spring part # SP-220275 which is a double eye leaf spring that is 1-3/4" wide, has a 4,000 lb total weight capacity, and a 25-1/4" eye to eye measurement. The measurement you provided of 26" long is correct but the leaf spring needs to be measured while unloaded as it will lengthen...
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• Axle Placement and Suspension System for 20,000 lb Bumper Pull Trailer
  For your trailer, the axle placement will dictate the hanger placement as will whether you use double eye springs or slipper springs. When positioning a trailer axle or adding an additional axle, the key is to make sure that the axles are located in just the right position so that roughly 10 to 15 percent of the total trailer weight is placed on the tongue. For a heavy duty trailer like you reference I recommend using the slipper springs # SP-159275 along with the Dexter Tandem-Axle...
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• Recommended Leaf Springs and Equalizers for Triple Axle Trailer With Double Eye Springs
  I saw you were looking at double eye leaf springs so we will assume that is what you have. In regards to leaf spring hanger spacing, the most common for a triple axle trailer is 29-1/2" first to second (center to center), 34" second to third (center to center), and 29-1/2" third to last (center to center). Therefore, it would be best if you would place the leaf spring hangers accordingly. Once the leaf spring hangers are in the above positions then you have a few options based on axle...
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• Replacement Leaf Springs for Single Axle Trailer with 26 Inch Long Old Leaf Springs
  Correct, the loaded and unloaded length for a leaf spring will be different. In order to choose the correct replacement you will need to remove all weight from one side of the trailer and then measure the eye to eye spacing of that leaf spring. The new leaf spring you choose should then be very close to this but it can also be a bit shorter as leaf springs will flatten out over time as they wear. The most likely replacement we have for you is part # SP-220275 which measures 25-1/4"...
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• Determining Correct Length Replacement Leaf Spring
  Trailer leaf springs can grow longer after many years of use. A new springs that measures 25-1/4-inches long could easily measure 25-1/2-inches after years in service on a trailer. Springs can lengthen as much as 3/4 of an inch. If your old spring measured 25-1/2 you can safely conclude that it is actually a 25-1/4-inch. Our main leaf spring page is linked for you. Just click on your dimension and axle weight rating to see suitable options. Generally you want no less than 3-inches...
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• How To Measure Leaf Spring For Replacement on Utility Trailer
  I recommend to jack up the trailer so the axle hangs freely then measure from straight across from the center of one eye to the center of the other eye to see what you get. Since leaf springs can flatten over time this is the best way to get the most accurate measurement possible. Once you have that measurement it is easier to replace the leaf springs. It sounds like you may have 3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles part # SP-220275 that measures 25-1/4" long but you would...
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• Leaf Spring Recommendation for Trailer that Weighs 3,750 lb with 25.5 inch Leaf Spring
  For the length of your current springs and the weight of your trailer loaded the leaf spring I recommend the part # SP-220275 which is for a 4,000 lb axle and has a 25-1/4 inch overall length.
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• Double Eye Leaf Springs 25-1/4 Inches long by 1-3/4 Inches Wide
  For your leaf springs on a 2,000 lb axle, you only need 1000 lb springs x 2 as you stated. With the dimensions you gave, we only have 2000 lb capacity springs currently available. They are the 3-Leaf Double-Eye Spring for 4,000-lb Trailer Axles - 25-1/4" Long # SP-220275. As I stated these are twice as strong a spring as you need, so it will give you a more rigid trailer ride but will fit your hangers and your axle. If you choose to use these springs, you will not increase the weight...
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• Availability of Replacement Leaf Spring That is 25-3/4" Long
  We may have the exact leaf springs that you are needing depending on how you measured your current leaf springs. When measuring your leaf springs you will want to measure from the center of one eye to the center of the other eye. The Universal Group 3-Leaf Double-Eye Spring # SP-220275 might be the exact measurement that you took as it is 25-1/4" long from the center of one eye to the center of the other eye. If you measure slightly off this leaf spring could still work as it is not...
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• Can 4,000 lb Axle Leaf Springs be Used on a 3,500 lb Axle for a
  Yes, you could use leaf springs for a 4,000 lb axle, like part # SP-220275 (rated for 2,000 lbs each), with a 3,500 lb axle but it will make your ride a bit more stiff. The only times that a leaf spring would become damaged is if it is overloaded or has a defect from the manufacturer. Since overloading a trailer is actually a pretty common occurrence I recommend checking to make sure that you are within the weight capacity of your trailer. It is also important to note that even if you...
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• When Converting from Tandem Axle to Triple Axle Where Does Third Axle Install
  When going from a tandem axle trailer to a triple axle trailer you want to install the center axle where the current center hanger is for your tandem setup. This means you have to remove both of your current axles to position them properly. This gives you the additional axle support you want without throwing off how much tongue weight you have relative to the trailer weigh. We have triple axle hanger kits like the part # APTT5 which you could use too. You should note that you will be...
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• Figures Used to Determine Tongue Weight and Trailer Weight for Axle Placement
  If your trailer weighs 16.8k lbs yeah you'd want to get the tongue around 1,700 like you mentioned. At 3,600 lbs tongue weight your axles are too far back and would need to be brought forward to better balance that out. In the picture you mentioned the wheel weight and tongue weight (actual) are weights that are recorded with scales. When you then go to determine the movement needed to obtain the correct placement for ideal tongue weight you use the formula with the total weight of the...
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• Axle Placement Recommendation for a V-Nose Trailer
  With a V-nose trailer axle placement is the same as a flat nosed trailer. The same 60/40 equalizer hanger point applies. To determine the location for the front and rear hangers on your tandem axle V-nose trailer you will first need to make sure that you have the correct center point for your equalizer hanger. The center point of your equalizer hanger needs to be located where you will have 60 percent of the frame of the trailer in front of the center of the equalizer hanger and 40...
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• Recommended Hanger Placement for 7K Tandem Axle Trailer
  I have attached an article to help with correct axle placement on your 18-foot tandem-axle trailer. Then based on correct placement, I recommend using a hanger kit like # APT5. I then recommend using the 6-Leaf Double-Eye Spring for 7,000-lb Trailer Axles - 24-7/8" Long # SP-198275 which will work well with the spacing of your hangers at 29-1/2 inches on center which will put your axles at 33-1/2 inches on center. See attached photo.
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• Recommended Hanger Spacing for 25-1/4 Inch Leaf Springs and 7-3/4 Inch Equalizer
  For a tandem axle trailer that uses 25-1/4 inch long leaf springs like # SP-220275 and a 7-3/4 inch equalizer like the TruRyde # TREQE1, the hanger spacing should be approximately 29-1/2 inches. Keep in mind that this is simply a starting point and it's possible that you will need to adjust this dimension slightly on your trailer.
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• Should Leaf Spring Capacity Match Trailer Weight or Axle Weight for Best Ride Comfort
  You are indeed right to think this way. When picking out the appropriate leaf springs for your custom built trailer you will want to choose them based on what the actual loaded weight of the trailer will be. Just make sure that the leaf springs have a combined weight capacity that matches or exceeds (within reason) the 1,200 pound max weight of your trailer. Matching the leaf springs to the 5,000 pound axle you plan on using will give you an awfully rough ride with a 1,200 pound trailer....
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• Selecting Replacement Leaf Springs for Sea Lion SK-20-2200 PWC trailer
  We can help you with replacement leaf springs and related parts like shackle straps and suspension bolts for your Sea Lion SK-20-2200 PWC trailer. The pages I linked for you display all types of suspension parts and double-eye leaf springs. For new springs you do definitely need to replace both leaf springs on the axle since not doing so can cause tracking problems. The best way to go is to completely remove one of the leaf springs so that you can measure its eye-to-eye dimension. You...
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• Why Are Leaf Spring Bushings Narrower Than the Springs
  The bushings aren't designed to extend past the edge of the spring. When the shackle bolts are tightened, they're not meant to be drawn down so tight that the spring hanger or shackle is in contact with the side of the spring eye. That's why the spring/shackle bolts will typically have the knurling on one end, so they're locked into place.
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• Recommended Components For Tandem Axle Upgrade On Loadrite MC 1800 3 Rail Motorcycle Trailer
  Thank you for your email answering my questions on your axle. I have the information to help you with your tandem axle application. Your current axle is not a standard size, so I recommend replacing your current axle as well. There are two routes to go for this, the more traditional style or the axle-less. For the Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Regular Tires - 2,000 lbs, # A20RS545, you simply mount the axles square and the suspension is integrated....
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• How To Determine Replacement Leaf or Slipper Spring for 1996 Nitro Bass Boat Tandem Axle Trailer
  You will need to measure the distance from the center of each mounting point on the end of the leaf springs. If you look on the page for part # SP-220275, the measurement you will need is measurement A as shown in the diagram. If you have slipper springs, you will need to take 4 measurements. 1. The distance from the center of the mounting hole to the end of the slipper spring 2. The distance from the center of the mounting hole to the highest point of the slipper spring. 3. The...
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• How to Pick Out Leaf Spring for a 2003 Starcraft Model 2106 Launch Series
  You are going to have to measure your current springs to pick out the right length replacement. You will need to know the length of the springs when they are unloaded (allow for a bit of stretching due to age) and then the axle capacity of the trailer so that you can pick out the correct spring. If you check out the chart at the link I attached you will see all of the springs we carry. There is the length and capacity listed. Priority one is the correct capacity and then going with a...
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• Is There a Difference in Ride Quality Between 4-Leaf and 3-Leaf 3500 lb Leaf Springs
  The number of leaves in springs of comparable weight capacity has no bearing on the ride quality. Both the SP-220275 you mentioned and the SP-212275 which has 4 leaves share the same eye-to-eye and height dimensions. Leaf springs should be replaced in pairs. For a tandem axle trailer, its best to ensure that all of your springs have the same number of leaves. I have linked you to our Trailer Suspension FAQ page.
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• How to Determine Axle Locations on a Triple Axle Trailer
  Determining the location of the axles on your triple axle trailer can be difficult, but basically you want to locate the axles so that the tongue weight of the trailer is 10 percent of the total trailer. I attached a picture that details the process. Typically on triple axle trailers the center axle will be located 60 percent of the way from the front of the trailer and 40 percent from the back. This isn't always the case as boat trailer and some flat bed trailers have the axles more...
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• Can Heavier Rated Leaf Springs than Needed be Used on a Trailer
  If the leaf spring part # SP-220275 that you referenced matches up dimensionally to what your trailer has and has a capacity that is 400 lbs more than needed it would work just fine. Having a bit extra capacity for the leaf springs would not cause an issue at all. At worst it may cause the trailer to bounce a bit more unloaded.
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• 3,500 lb Leaf Springs and Hanger Kit Recommendation for a Mobile Home Trailer
  Mobile home axles/suspension are typically designed for one time use, so picking out components to work with mobile home components can be tricky. Your best bet is to do what you did with your axles and just start over with quality stuff that you will know will work. First let's start with a spring. For a 3,500 lb spring the part # SP-212275 would be a great choice. For a u-bolt kit you would want part # APUBR-1. For a tandem axle hanger kit you would want the part # APT3. The Never...
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• Parts Needed to Convert a Single Axle Marine Master Trailer to a Tandem Axle Trailer
  We do have tandem axle suspension kits, leaf springs and u-bolts to convert a single axle trailer to a tandem axle trailer, but the conversion will be a little more involved than just adding a second axle. To ensure you purchase the correct parts, you will want to look at your current axle and suspension. You will need to know the axle weight capacity, axle diameter and leaf spring dimensions to choose the correct suspension parts for a tandem axle trailer. I have attached a link to all...
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• How to Determine Axle Positioning on a 40 ft Long Dove Tail Trailer
  To determine the location for the front and rear hangers on your tandem axle trailer you will first need to make sure that you have the correct center point for your equalizer hanger. The center point of your equalizer hanger needs to be located where you will have 60 percent of the frame of the trailer in front of the center of the equalizer hanger and 40 percent behind the center of the equalizer hanger. For example, if the trailers frames length is 40 feet like yours, then the center-line...
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• Placement of Front and Rear Hangers When Building a Tandem Axle Trailer
  To determine the location for the front and rear hangers on your tandem axle trailer you will first need to make sure that you have the correct center point for your equalizer hanger. The center point of your equalizer hanger needs to be located where you will have 60 percent of the frame of the trailer in front of the center of the equalizer hanger and 40 percent behind the center of the equalizer hanger. For example, if the trailers frames length is 10 feet, then the center-line location...
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• Typical Capacity of 3 inch Diameter Trailer Axle
  A 3 inch diameter round trailer axle normally has a 6,000 lb capacity. That would also match up to the other info you listed as well.
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