Spring Seat for Typical 3,500-lb, Round Trailer Axles with 2-3/8" Diameter

Ask the Experts about this TruRyde Trailer Leaf Spring Suspension

• Where on Axle Should Spring Seats Be Welded On
  The bend in an axle (the top of the arch) should be at the top of the axle so that as the trailer load is placed on the axle it flattens out. The spring seats # TRSS238 should be welded to the underside as shown in the linked diagram.
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• Do Trailer Axle Spring Seats Weld to Axles
  You need to weld the spring seats like the part # TRSS238 that you referenced to the axle tubes.
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• When Moving Leaf Spring Above Axle Can U-Bolts be Reused
  If your U-bolts are still in good shape you could reuse them. You would just need a new spring seat designed for your diameter axle. I attached a link to a page that has all of the spring seats we carry. If you select your axle diameter from the filters on the page the correct one will be listed.
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• Do Old Spring Seats have to be Removed to Move Springs On Top of Trailer Axle
  You do not have to remove the old spring seats unless they cause a clearance issue. But keep in mind that the new spring seats will have to be welded to the axle. Welding should be performed by a qualified professional with experience working on trailers. If you were to use an over-under conversion kit, # K71-384-00, you would not have to do any welding.
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• Does Tru-Ryde # TRSS238 Spring Seat Include 1 or 2 Pieces
  The # TRSS238 Tru-Ryde Spring Seat you referred to is sold individually, if you needed a pair, you'd need to order two of them.
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• Spring Seat Measurement for 3,500 lb Axle
  I have added a cutout of the dimensions of the Spring Seat for Typical 3,500-lb, Round Trailer Axles with 2-3/8" Diameter # TRSS238 for you to check out. The spring seat, which works with 1-3/4" or 2" wide springs is 4" long, 1-7/8" wide, and 1-1/4" tall as you can see in the photo.
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• How To Choose Correct 3,500 Lb Axle for Slipper Spring Setup
  In order to determine which axle is correct for your trailer we need to find out what your hub face (HF) and spring center (SC) measurements are. If you take a look at the photo I have attached for you that should then help with obtaining the above two measurements. The most important thing we need to look for is the hub face as the spring center can then be moved (within a range) if we need to. I have attached a list of the 3,500 lb axles we offer in the varying hub face and spring center...
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• Recommended Drop Axle for Trailer With 80 Inch Spring Center
  The best option we have for you is going to be with the Dexter Trailer Axle Beam with 4" Drop E-Z Lube Spindles part # 7685269 which has a 3,500 lb weight capacity. This will allow the tires to extend out past your load and will provide you with the low load height you will need. The spring center spacing on this axle is set at 80" but if this does not match what you have on your trailer now then you can always move them to where you need them with part # TRSS238. The leaf springs will...
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• Can the Spring Seats Be Moved on the Dexter 3,500 LB Drop Axle
  The Dexter Trailer Axle Beam with 4" Drop E-Z Lube Spindles part # 8327812 measures 89" long between each hub face and 74" long between each spring center. It is not offered with 89" between each hub face and 70-1/2" long between each spring center because the spring seats can be moved. The spring seats for this axle can be moved to a minimum of 75" apart and a maximum of 71" apart. Since you only need to go in 1/4" more on either side I would say you are fine to move the spring seats on...
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• Is 76" Spring-Center Measurement Abnormal for 95" Wide Trailer Axle
  That does make sense. We don't have an exact replacement for your application but if you check out the Dexter Trailer Axle Beam with 4" Drop E-Z Lube Spindles # 7685269 you can see that it has 95" hub-face and 80" spring-center measurements. Since the hub-face and spring-center measurements can vary from trailer to trailer and yours are fairly close to one that we carry (we only carry a few of the very popular options) I wouldn't say that's abnormal. Even though the spring-center of...
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• Spring Seat for 3500-lb Axle with 2-3/8-Inch Diameter
  If you want to use an axle like # 35545E-ST-EZ-89 that has the 89-inch dimension and 3500-lb weight capacity you need but the spring seats are not at the correct locations you can just have new seats welded on. This axle's diameter is 2-3/8-inches so you can use spring seat # TRSS238. These seats are compatible with 1-3/4-inch wide or 2-inch wide leaf springs.
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• Can the Lippert Trailer Shock Kit be Used with the Dexter Over-Under Conversion Kit?
  The Lippert Components Bolt-On Shock Kit w/ Heavy Duty Gas Shocks - 3,500-lb (2-3/8") Axle # LC281255 is compatible with the Dexter Trailer Springs Over-Under Conversion Kit # K71-384-00. This over-under kit If you have 3 inch axles ( lbs) then you will use # K71-385-00 and # LC281281. The over-under kit will give you the spring seat locations needed but will give you parts that the Lippert shock kit will duplicate. If you want to weld on spring seats, you can use # TRSS300 or...
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• Spring Seats and Nut Coupling Available Separately for Over-Under Conversion Kit
  Hello! I am a bit confused by the question, but I believe you are saying you are going to be using the Dexter Trailer Springs Over-Under Conversion Kit # K71-384-00 on your trailer and want to know about the availability of spring seats and spacer nuts, correct? If so you do not need to purchase those separately because they come with the kit already. If you were asking about piecing together this kit, there are individual components available: - Spring Seat for Typical 3,500-lb,...
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• Recommended Axle for Boat Trailer with 96 Inch Hub Face and 78 Spring Center
  I have just what you need for your boat trailer, the Dexter Trailer Axle Beam with EZ-Lube Spindles part # 35545I-EZ-89 which has a 3,500 lb weight capacity. The hub face to hub face of this axle is 89" and the spring center to spring center is then going to be 74" but you can move these to 78" apart pretty easily with part # TRSS238. The 1/2" difference in the hub face to hub face will not be an issue at all.
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• Is there a Replacement Dexter Axle that Fits in Place of a 3,500 Pound Lippert Axle
  Is your axle actually bent or are you just seeing the bow that is supposed to be in the axle? A beam style trailer axle has a bow in it so the center of the axle is higher than either of the ends. When weight is on the axle it straightens out. This is part of how it gets its capacity. So if that is what you are seeing it is normal. If it is bent from damage or was overloaded then you would definitely want to replace the axle. To find the correct replacement there are some measurements...
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• Troubleshooting Leaf Spring Fit on Top of the Axle on a Tandem-Axle Trailer
  I assume by flip, you mean you moved the leaf springs to the top of the axle. If this is the case, then all of the springs should sit the same. There are a few things you can check to ensure everything is in place. If you had to weld on new hangers to the trailer frame, then I would check and make sure they are attached properly. You will also have to weld new spring seats like # TRSS238 on the top of the axles for the leaf springs to sit on. You can also use a conversion kit like the...
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• Replacing a Lippert 3,500 lb Leaf Spring Axle with a Dexter 3,500 lb Leaf Spring Axle
  The Dexter Trailer Axle, part # 35545E-ST-EZ-89, is similar to the Lippert LC135-SB-85.0-68.5 axle, but it is not a direct replacement. Both axles are 3,500 lb leaf spring tubular axles, but they are different lengths. The Dexter axle is slightly longer, which means the wheels would stick out further and the spring center is wider. Your axle has a hub face measurement of 85 inches and the Dexter axle has a hub face measurement of 89 inches (see photo). The wheels will stick out about 2...
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• When Replacing Trailer Axle Does the Spring Seat Measurement have to be Exact
  For axles such as # 8327812-I the spring center measurement does have to be exact, however, you can weld on new spring seats if you need to. You would need to have a professional welder weld on 2 of # TRSS238 in the proper locations.
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• Should Hole be Drilled in Axle for Leaf Spring with Center Bolt to Fit Properly
  Great question! When installing leaf springs that have a stack with a bolt in the middle, like the 3,500 lbs Axle # SP-212275, you will actually be installing them using a Spring Seat # TRSS238 which welds on to your trailer axle and gives you the support needed as well as a hole in the middle where that center bolt goes through.
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• How to Correct Trailer Whose Spring Hangers Do Not Line Up With Spring Seats
  You will need to have the spring seats removed to have them or new spring seats welded to your axle at the correct locations to match your trailer's hanger spacing. For a 3-inch round axle rated between 5200- and 7200-lbs use part # TRSS300; for a 2-3/8-inch diameter 3500-lb axle use part # TRSS238; for a 1-3/4-inch diameter 2000-lb round axle use part # TRSS175. If you cannot re-position the spring seats to match the hanger spacing then you can have a qualified welder install new material...
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• Is Special Axle Needed for Mounting Under Leaf Springs?
  The Dexter Trailer Axle Beam # T3584F-EZ-8974 you referenced is an underslung design and you would need an overslung axle, though there is still a way for you to use an underslung axle. I assume you used an over/under conversion kit such as # K71-384-00 to move your leaf springs to the top of your axle. If so, you could still use those U-bolts and Spring Seat for Typical 3,500-lb, Round Trailer Axles with 2-3/8" Diameter # TRSS238 to place this axle on top of your leaf spring. Or, as...
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• What is Needed to Install Spring Seats on Other Side of 3,500 lb Trailer Axle
  You can have the spring seat removed and installed on the other side of the axle tube, or you could just weld a new spring seat to the other side with # TRSS238. You are correct though, you can't just flip the axle over as the bow of the axle would throw of the alignment.
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• Spring Seats That Fit Dexter Trailer Axle # 35545E-ST-EZ-89
  We can't weld an additional set of spring seats to our axle part # 35545E-ST-EZ-89 that you referenced but what you can do is order the part # TRSS238 with the axle and then have it welded locally.
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• Spring Seat Location Change on 3,500 lb Dexter Axle To Fit Trailer Spring Locations
  The Dexter Trailer Axle w/ Electric Brakes - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 89" - 3,500 lbs # 35545E-ST-EZ-89 can have the spring locations changed. You can simply have the Spring Seat for Typical 3,500-lb, Round Trailer Axles with 2-3/8" Diameter # TRSS238 welded in the desired locations versus the 74 inches center on center they come with. What you cannot change is the hub face to hub face length. There is a maximum from the hub face to the spring seat, so at most you can on a...
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• 3500-lb Axle Compatibility with Idler Hubs
  We offer 3500-lb beam axles in two lengths, 89-inch and 95-inch, and all appear on the linked page along with the universal-fit Timbren systems that do not require an axle beam. These 89-inch and 95-inch beam axles have spring centers of 74-inches and 80-inches, respectively. If you need spring centers spaced at 76-1/2-inches you will need to have spring seats welded on at that spacing. For the 2-3/8-inch diameter of a 3500-lb axle you can use spring seats # TRSS238. Please note that...
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• Why is the Dexter Over-Under Conversion Kits for Double Eye Leaf Springs Only
  The Dexter Over-Under Conversion Kit, # K71-384-00, is recommended for double eye leaf springs only because it is a bolt-on kit. Slipper springs require the spring seats to be welded to the axle. You could use this kit if you weld the spring seats in place. If you go this route, I recommend having a qualified welder complete the installation to make sure the spring seats are welded properly. Since the spring seats must be welded in place, you could save some money by simply buying two...
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• Axle-Less Recommendation For Trailer With 72 Inch Frame Width
  All of the 3,500 lb axles like part # 35545E-ST-EZ-89 we offer have the center to center spring seats at 74 inches. We do not offer an axle with the seats placed at 72 inches as you mentioned. An option you may want to take a look at is to weld new spring seats like part # TRSS238, onto the new axles. You should make sure this is done by a certified welder. Another option you may wish to consider is the axle-less system like part # A35RD545E. This system will attach to any frame...
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• Replacement Trailer Axle with Electric Drum Brakes for Older Custom Trailer
  The beam axles we offer nearest to your 87-5/8-inch hub-face-to-hub-face measurement are 89-inches. All of these are rated for 3500-lbs and can be seen on the linked page. For an 89-inch kit with 74-inch spring centers and the 5-on-4-1/2-inch hub bolt pattern you could use kit # 35545E-ST-EZ-89. You can refer to the linked diagram to see how the hub face and spring center measurements are taken. If you need to make a different size axle work then you'll need to new spring seats welded...
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• Parts Needed to Install Trailer Leaf Springs Above the Axles
  You will need spring seats to mount Leaf Spring # SP-111275 to your axle. For a 3 inch axle use # TRSS300 and for a 2-3/8 inch use # TRSS238. For a complete kit to install your springs above the axle we have over-under kits. The it for 3 inch axles is # K71-385-00 and for here for 2-3/8 inch axles the kit is # K71-384-00. The kits include all the hardware you'll need.
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• Recommended Over/Under Conversion Kit For Band Equipment Trailer That Sits Too Low
  We do not sell trailers as you described. You may be able to find a suitable trailer at a camper retailer near you. If you have double eye leaf springs on your trailer and the axles are either 2-3/8 inch or 3-inch diameter you may want to consider over/under kits. I recommend the Dexter Trailer Springs Over-Under Conversion Kit, part # K71-384-00, which is designed for the 3,500-lb axle with the 2-3/8 inch diameter. If you have a 3-inch diameter axle the Dexter Trailer Springs Over-Under...
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