Dexter Trailer Springs Over-Under Conversion Kit

Dexter Trailer Springs Over-Under Conversion Kit

Item # K71-384-00

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Dexter Axle Accessories and Parts - K71-384-00
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  • Trailer Leaf Spring Suspension
  • Alignment and Lift Kits
  • Dexter Axle
Call 800-298-8924 to order Dexter Axle accessories and parts part number K71-384-00 or order online at etrailer.com. Free expert support on all Dexter Axle products. Guaranteed Lowest Price and Fastest Shipping for Dexter Trailer Springs Over-Under Conversion Kit. Accessories and Parts reviews from real customers.


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  • Reviews (159)
  • Q & A (631)
  • Videos (1)
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Dexter Axle Accessories and Parts - K71-384-00


Features:

  • Fits 2-3/8" axle
  • Allows moving trailer leaf springs to top of axle
    • For use with double-eye springs only
  • Sleeve bolts allow the setup to install level
  • Includes:
    • (2) Spring Seat
    • (8) Nut
    • (4) U-Bolt
    • (2) Tie Plate
  • U-bolt length: 5-1/8"


K71-384-00 Dexter Axle Over/Under Conversion Kit



K71-384-00 Installation InstructionsInstallation Details K71-384-00 Installation instructions



Video of Dexter Trailer Springs Over-Under Conversion Kit


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Dexter Axle Trailer Suspension - Leaf Spring Suspension - K71-384-00 Review

Male Speaker: Today we're going to be taking a look at the Dexter trailer springs over/under conversion kit. This conversion kit is designed to fit 2-3/8 inch diameter axles. It's going to allow you to move the trailer release springs to the top of the axle without having to change the correct orientation of the axle. This is going to help with leveling your trailer. It's going to help wheel well clearance, and it also adds some height to prevent dragging, dipping, and bottoming out. One kit is going to come with enough components for one axle, so one kit per axle.

This is designed for use with double-eye springs only. The unit's going to include two spring seats. These are going to sit on top of your axle. It's going to come with eight nuts. It's going to come with four u-bolts. Two tie-down plates, the tie-down plates sit on top of your release springs once you have them moved to the top of the axle.

It's got the holes in it, that way the u-bolts can wrap around the axle and come up through the plate. You can secure it by installing the included nuts. It's going to come with the spacer nuts. These are going to allow the setup to install level. Basically, you would have one spring seat on top of the axle, then your old spring seat would still be under the axle. The spacer nut is going to fill that gap between the two spring seats.

You would place this on until it makes contact with the bottom spring seat. Then what you would need to do, which is highly recommended from the manufacturer, is tack weld this to the axle. That's the only welding that's required, or highly recommended, that you tack weld this to the axle. Then you can finish the tightening process or any minimal adjustments simply using a wrench. The u-bolt length on the unit is going to measure 5-1/8th of an inch. Everything that you see here on the table is included.

It's also going to come with some detailed installation instructions to help with the installation process. This is a bolt on installation, but again because there is a little bit of highly recommended tack welding that needs to take place, we can't say that it's a fully bolt on installation. Overall, it's a nice unit. We're looking at all steel components, and it's going to last a long time. This is going to allow you to move the trailer release springs to the top of the axle without having to change the correct orientation of your axle. This is really going to come in handy when it comes to leveling the trailer, gaining some extra wheel well clearance, and trying to add some clearance to prevent those situations where you may be dragging, dipping, or bottoming out. That's going to do it for today's look at the Dexter trailer springs over-under conversion kit.


Customer Reviews

Dexter Trailer Springs Over-Under Conversion Kit - K71-384-00

Average Customer Rating:  4.8 out of 5 stars   (159 Customer Reviews)


- K71-384-00
by:

The Dexter trailer spring under kit is very simple to install, installed this along with the Dexter heavy duty shackle kit. The kit came with all the required hardware and included instructions. The quality of the hardware was a step above that which came on the trailer when it was purchased. The Dexter spring under kit along with the the Dexter heavy duty shackle kit provided approximately 5" of lift on each corner of the trailer. 465498



- K71-384-00
by:

Easy to install. Resolved an issue where the tire was rubbing the fender wells. 125635


Comments

I installed this over a year ago and it resolved the issue with the fenders rubbing the tire. I haul a 4 seater razor. There is no trailer sway and it tows great. A great buy.

Michael P - 04/16/2015

10861

- K71-384-00
by:

Very easy to install , took me two hours from start to finish , I welded the new spring perch onto the axle instead of using only the rod coupling spacer , I thought it would be stronger . Camper was too low when I backed it up my hill at the house , this gives me 4 1/2 inched more clearance .Very pleased with the kit , and the service or E trailer !!!! 547546



- K71-384-00
by:

I ordered this kit to keep my 19' Coleman tent trailer from dragging the rear bumper on direveway approaches. Install was super simple, finished everything in about 40 minutes. I gained about 5 inches of added height. I chose to not tack weld the perches in case the next owner doesn't like the height. No problems with a few thousand miles of rough roads. Highly recommended. 256979



- K71-384-00
by:

e trailer is my go to company when I need trailer parts. I received my order in really fast time. It was all there, and I cannot say enough good things about this company. Keep up the excellent work guys and gals. Till the next order, yours truly. R.H. Mathis. 541642



- K71-384-00
by:

I've been a long time customer of etrailer.com and have been very happy with their excellent customer service and prompt shipping. This review in no way reflects on etrailer.com but is focused on the product K71-384-00 from Dexter Axle. The kit arrived well packaged and in the original Dexter box. However, upon examining the contents, it was apparent the parts had been used before. The instruction sheet was badly soiled and torn. There were scratches on the tie plates and the small parts bag had been torn open. The more critical concern is that the u-bolts were a smaller gauge than my existing u-bolts. The tie plates were a bit narrower as well. In my opinion, the only useful parts out of this kit are the two spring seats and the four coupler nuts that go with them. My existing u-bolts are the same length as the Dexter kit's u-bolts but the gauge is slightly larger. So, I will use my existing u-bolts, nuts, and tie plates as they should be stronger. I believe Dexter should offer a kit with only the spring seats and coupler nuts. This would save the customer the unneeded expense of paying for parts that are not necessary. I scanned the etrailer.com web site but could not find such a product available. 384133



- K71-384-00
by:

It took me 1.5 hours from start to finish, including clean-up, to install this kit. The instructions were simple and easy to follow, but remove the old u-bolts, plates and nuts - reassemble immediately for a reference of how the new bolts and plates go on (just upside down instead). I got a 5" lift as a result of using this kit. Currently, I am only using the nuts and spacing bolts but plan on getting the spring seats welded at some point. etrailer.com delivered them quickly, with great communication throughout the process. 55600



- K71-384-00
by:

Kit arrived well packaged. Surprisingly quick to install on my 6x12 enclosed utility trailer. Using an air impact wrench to remove all the nuts from the old setup made for quick work. The instructions recommend removing one of the spring shackle bolts on both sides, but I found this unnecessary. I only removed the U bolts, then shifted the axle to the side until I could drop it under the spring, and then repeated on the other side. New U bolts and plates went on easily. I highly recommend this kit if the goal is added approach and departure clearance. Observations: 1) This kit raised the trailer 5 inches. Made a huge difference. 2) The instructions mention changing / adding bump stops to prevent spring damage from over-flexure. A little research points to 2.5 inches for maximum allowable axle travel, so I still have to source / fab ~4 inch tall bump stops (would be nice to have this all orderable from etrailer) 3) I am going to have the new spring seats welded to the axle tube as recommended, but only because I run brakes on this trailer and want to make sure the seats could handle the added torque of emergency braking. 88832



- K71-384-00
by:

Parts fit great 505109



- K71-384-00
by:

Ridicules ! I made this purchase with the hopes that all would be well. Once the item arrived I was met with a box that had been previously been open and I was missing parts of course! Called customer service and was promptly told that the items would be shipped next day! Well when I followed up withe trailer the next day, I was told that it would be over a month before I got the hardware to complete my job! Well that was ridicules, right? Here I am with my utility trailer taken apart in my driveway and told that I would have to wait a month, wrong! So I had to drive around looking for the hardware to complete me job, pay 20 bucks out of my pocket so I would not have to wait a month. So to you etrailer NEVER AGAIN! 510086



- K71-384-00
by:

I rated this product five stars simply because of the service I got. I wrongly measured my axle and the product would not work for me which was no fault of the product or the company. When I ordered the product they did not have it in stock and I paid extra for two day delivery. I received an email explaining their lack of the product. Before I could contact them for a solution they called me. The lady on the phone was very apologetic, she refunded me my extra money paid for two day delivery and assured me the latest they would be shipping me the product was in four days. Turned out they must have got the product in earlier and they shipped the product overnight and I had the product in four days. Excellent service!! 491646



- K71-384-00
by:

We take our 20 foot camper trailer dry camping and the clearance has been marginal for the roads we go on. The main problem has been that the black/gray water outlets hang about 8" above the ground and are easy targets for rocks and ruts. We got the Dexter Over-Under conversion kit to provide a bit more clearance. As others point out, it installs quickly even for non mechanical types like me. I got it done in an afternoon. The pictures provided by e-trailer are invaluable. Also invaluable was a handy man jack. The only problem I encountered is that the spring bolts did not come out easily. Turns out that for my trailer they are press-fit and need a bit of hammering. I got about 5" of additional ground clearance. 221096



- K71-384-00
by:

This kit does exactly what it advertises. Gave me 4 1/2 in of lift. It is very straightforward to install. The only difficult part was getting the trailer up on jack stands. Make sure you do it on level ground, it makes jacking it much easier. I also had an issue with not having enough spacer nuts. I actually bought two kits and both only had 2 nuts and 4 are needed. There is no packing list so use the picture in the etrailer ad. etrailer was great about making it right. 508670



- K71-384-00
by:

Had to do some minor mods to install these on my travel trailer, but seeing as we were going to weld them in place all was good! Made it real easy to get things set up correctly. Great product! 526838



- K71-384-00
by:

My trailer would drag leaving and entering our driveway. I gained five inches of clearance at the rear bumper and could not be happier with the results. I might have to add a second step at the door but that is much better than ripping of a stabilizer jack at the rear of the trailer. 555744



- K71-384-00
by:

High quality product. Straight toward install and has held up very well. Installed in a driveway in a few hours. I installed this kit on my 1974 komfort camper last year and have put highway and dirt road miles on it since. I take it elk hunting and get into some tight rough situations and haven't had any issues. It gave the camper just the right amount of clearance and it pulls level behind my Tundra with a curt anti sway stabilizer hitch. Before this kit my campers ground clearance was awful and I was always worried about puncturing my holding tank. This product fixed that problem. 495328



- K71-384-00
by:

I was a bit hesitant about flipping my axle, but I was tired of dragging the rear every time I pulled out or into a drive. The instruction "SUGGEST" welding the spring perches. I would suggest that be mandatory, especially on a drop axle like mine. I watched the video on how to install this and threw the instructions away. It was just that easy to install. The hardest part was dragging the axle out to the welder. If you need a few extra inches of height, I would strongly suggest flipping your axle with these. The parts were not cheap stuff and after I got them installed they worked great. 394944



- K71-384-00
by:

I am so pleased with the order Really nice all parts there and w uhh th directions Thank you Chrissy for helping me select the right kit 519122



- K71-384-00
by:

The product was great, the instructions were a little sketchy. Just one illustration would have made things a lot clearer. The instructions assume you know what each part is called but there is not even a list of parts included to help you figure it out. The results were just what I needed, though, about a 5" lift and my travel trailer no longer drags when coming up the drive. Word to the wise: go on and order a couple of extra shackle bolts and nylon bushings. It's cheap insurance and chances are you'll need them. 82401



- K71-384-00
by:

Working great on my RV trailer. Gave me enough lift to get into those tough to reach places for a week of hunting big game without wrecking my RV trailer. Pretty easy to install. Did it in my driveway with help from my hunting partner in about 4 hours on two axles. 297455



- K71-384-00
by:

Ordered kit on Wednesday at 6pm and received on Friday by noon. Unbelievable !!! Very easy to install. Completed change out in 2 hours. Got the results I was looking for. Raised camper 5 1/4 inches. Very pleased. Will continue to use and recommend Etrailer . 101935



- K71-384-00
by:

Needed to lift my 2015 Pacific Coachworks trailer as it dragged the hitch and bumper . Easy install DIY for me as I am Handy. Took the entire day, taking my time for measurements. Had to jack up the trailer quite high, 2 feet lots of cribbing. I had a wire feed welder and tacked the brackets to the axle. Gained over 4+ inches. Never drags anywhere now even offroad. Tows no different, with my Fastway e-2 10k hitch. Before and after pics. 353314



- K71-384-00
by:

Went on very easy even just using hand tools. Gave my little pop up about 5 inches of lift. 272527



- K71-384-00
by:

The kit arrived very fast, it is a well designed item and the fit was excellent, easy to install and accomplished the desired results. 228191


Comments

No complains, it has world as promised.

hecmac1 - 09/27/2016

21271

- K71-384-00
by:

Got the parts I needed very fast, came as described. Was surprised to see the manufacturer as Dexter, the same manufacturer of my axle. The only thing I would add to the part is back up nuts where the extension nuts contact the welded on axle bracket to keep the extension nuts from working loose due to road vibration. I did not have to disconnect the brake wires from the brakes, I just unbolted each spring and place the axle under the spring and re-attached the spring to its perch. Took 4 hours to complete, great product. 153807


Comments

Still going strong, traveled over 3,000 miles with no problems, rechecked tightness of u-bolts, still tight. Ride height of trailer is level with truck, couldnt be happier.

Mike P - 10/08/2015

15484

- K71-384-00
by:

Great product!! Worked perfectly on my 2015 KZ Sportsmen Classic 16 BH. Before lift body @ 18" and top of wheel well @ 26.5" After lift body @ 23" and top of wheel well @ 31.5" Easy conversion with a little elbow grease. I did weld as suggested. 520734



- K71-384-00
by:

All parts are in box. I watched a few videos and it actually went really well. Instead of tacking I put a full weld on. Raised my camper a solid 6 to 8 inches. People complain about the u bolts being smaller but the u bolts no longer support the weight and the need for larger bolts no longer exist when putting the axle under the spring vs above. Very satisfied. Took 5 hours including lunch break and painting. 657328



- K71-384-00
by:

Very good service and the kit is well made. Have not installed it yet ! 644835



- K71-384-00
by:

I gave a 5 star even though there were Dingle berries on the radius cut outs. They chipped off easy enough, but I used to weld for a living. Also I used my old spring plate along with yours so that the spring was sandwiched between them. That way the radius on the plate still worked with the spring. Everything fit great and was as simple as could be. Great product and I could not make them cheaper or better. 637450



- K71-384-00
by:

It seems that good customer service in many places is difficult to find. Many businesses have lost track of who the customers are. This has not been my experience with your company. I appreciate the professional care I have received. 634704



- K71-384-00
by:

As usual, very fast delivery. Do not know when I'll get to install. 629003



- K71-384-00
by:

Easy install and no problems after the first year! 628535



- K71-384-00
by:

This product worked wonders!! The camper was literally rubbing the wheel well! Highly recommend this!! 613861



- K71-384-00
by:

I did this conversion and am very satisfied It could have been done in one day by myself but I found the grease seals of poor quality. I ordered new seals and had it all back together I did weld on the new brackets 598383



- K71-384-00
by:

This over-under conversion kit worked out great for my 5th wheel trailer to meet up with my truck height. The kit got here quick, I already had the trailer ready for the conversion kit to be installed when it arrived, so all I had to do is put the axles underneath the springs and assemble the kit together to the trailer according to its instructions, and this really made a difference, now my 5th wheel trailer is at the height it needs to be with my truck and it now clears the bed sides of the truck a whole lot better for traveling. Thank You, etrailer 597251



- K71-384-00
by:

perfect 594552



- K71-384-00
by:

I received the parts exactly as advertised. They seem to be really good quality with simple installation instructions. 588488



- K71-384-00
by:

Great product works great 585121



- K71-384-00
by:

Looks good, should be easy to install. 580482



- K71-384-00
by:

Product worked exactly as stated, I was happy with it when I bought it and now a year later I am very pleased to say the added clearance has made a big difference getting on and off my summer property. Great product and an easy fix if u r handy at all. 561637



- K71-384-00
by:

This was a lot easier than I thought it would be. Everything came in the package as advertised. I gained nearly 6" of height exactly what I need for where we camp. Great product from a great company. Terry 549736



- K71-384-00
by:

Everything came as ordered and good quality I will do business again with etrailer thanks a lot guys 545232



- K71-384-00
by:

Great service 543988



- K71-384-00
by:

I was a bit skeptical about how well this would work for me, but after I buttoned everything up i was more than happy with the end result. Very basic and easy to follow directions. The over/under kit gave me an additional 5" of clearance and with that I no longer worry about dragging my dump valve at every dip I cross. 520315



- K71-384-00
by:

A great product all the parts were their easy to install. 517086



- K71-384-00
by:

Good quality item at a good price. Fast delivery too. Thank you. 514286



- K71-384-00
by:

Great product. Nice quality. I put on a 2004 Starcraft pop up. The only thing I'd suggest is more pictures in the instructions or a video would be nice, regarding how the spacer bolts are placed, etc. I figured it out, but needed to Youtube to make sure a couple times. 511608


Comments

A year later and a number of trips. Still holding up great and happy with the product

Barrett - 05/22/2019

55631

- K71-384-00
by:

Good quality product, easy to install 503653



- K71-384-00
by:

great prices. Ordered my trailer axles and they came just in time. Fit and installed perfectly and have been great since. Great company to order from! 501490



- K71-384-00
by:

Overall a good kit, but was shorted 2 of the long nuts. Made it a lil frustrating, had to go all over town trying to find them because I had the trailer tore down and had to have it Monday morning for work. 492465


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  • For your trailer that drags when pulling into a driveway, I first recommend looking into skid wheels like the Ultra-Fab Skid Wheels # UF48-979011. These sturdy steel wheels will attach to the rear of your trailer to help prevent the tail from dragging when backing up or going up your driveway. You will simply weld the included brackets to your trailer and then bolt the skid wheels to the brackets. These are designed for low-profile trailers or motor homes that are up to 30 feet long. If...
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  • Replacing the Axle on a Gooseneck Horse Trailer
  • An axle flip kit like part # K71-384-00 will raise the trailer the diameter of the axle plus the height of the leaf spring pack. I do have options for you but rotating the axle to where the bend faces the other direction is not one of them. The bend in the axle will actually straighten out once a load is placed on the trailer and if this was reversed, the axle would lose capacity. Now from this point forward you have two options both of which entail replacing the axle. Since your current...
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  • Axle Over-Under Kit and Suspension Parts for 2004 Weekend Warrior SL3705 5th Wheel
  • We offer two versions of the Dexter Axle Over-Under Conversion kit, often called a flip kit, that are to be selected based on the diameter of the trailer's axles. Kit # K71-384-00 works with 2-3/8-inch diameter axles and kit # K71-385-00 works on 3-inch diameter axles. Once installed each kit will lift the trailer by the sum of the axle diameter plus the height of the leaf spring stack. For example, a trailer with 3-inch axle that has a 2-inch tall leaf spring will pick up about 5-inches...
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  • How to Increase the Weight Carrying Capacity of a 2016 Coachmen Viking 17BHS
  • The weight capacity of a trailer will always be limited by its weakest component. You can in turn increase the weight capacity of the trailer by upgrading these components. Based on what you provided, the tires rated at 3,420 lbs for the pair are the weakest component and will be what you want to look at first when upgrading. The axle rated at 3,500 lbs is the next weakest component. In order to upgrade the weight capacity of the tires on your trailer you will need to switch to a larger...
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  • Can 2016 Airstream Bambi be Lifted?
  • Your 2016 Airstream Bambi can be lifted depending on the axle it has. If it has a #9 Torflex axle with a 2,000-lb capacity you would need Torflex Lift Kit # K71-723-01 and if it has a #10 Torflex axle with a 2,300 lb to 4,000 lb capacity you would use Torflex Lift Kit # K71-707-01; both of these kits will lift your trailer 2-5/8". Please note that these lift kits are not compatible with top-mounted torsion axles. The other option for you is not technically a lift kit, but what is called...
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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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  • How to Adjust 5th Wheel Towing Setup So That it is Level
  • There are a couple of different options for adjusting your Ford F-250 and your Jayco so that they ride level and you have the 5" - 6" of clearance that we recommend from your bed rails to your trailer. If you measure from the ground to the bed of your F-250 and then from the ground to the bottom of your pin box that will tell you what distance needs to be covered for your towing setup to be level. First of all most 5th wheel trailer hitches, like the Reese Select Plus # RP30081, have...
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  • Recommended Parts for Rebuild/Upgrade of Harbor Freight Trailer
  • The Dexter Trailer Idler Axle w/ Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 60" Long - 2,200 lbs # 20545I-EZ-60-15 is a great starting point to upgrade your trailer. This will give you a standard size axle with good bearings, hubs, and EZ-lube spindles. This is far nicer than the weird sized stuff that comes on Harbor Freight trailers. The Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range D # AM31994 will be a great addition to these hubs...
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  • Truck Bed Rail Height and 5th Wheel Trailer Clearance Compatibility
  • The excellent B&W Companion hitch setup for your 2017 F-350, such as parts # BWRVK3500-5W and # BWGNRK1117-5W which fit the 4WD with 8-foot bed, cannot be moved to a flat bed but there are 5th wheel hitches made for that application. They can entail other issues though, like the bed corners hitting the trailer when you turn sharply. Many late-model pickups, especially some Fords, have very tall bed rail height, which you know already. Trucks with extra large tires add to the problem...
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  • Difference Between Available Dexter Torflex Lift Kits
  • The Dexter Torflex Lift Kits are designed for use with Torflex axles. The differences in the kits we have available have to do with the specific model Torflex axle they are compatible with, along with the number of axles that are on the trailer. The Dexter Torflex axles feature a torsion arm type suspension and attaches directly to the trailer frame. You will first want to make sure this is the type of axle you have on your trailer. The Torflex Lift Kit # K71-707-02 (Tandem Axle) is...
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Used Items Available
RU-19-K0-00106180

Condition: Missing Parts

Notes: Item is missing one u-shaped seat. Otherwise new and unused.

Our Price: $40.69

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Info for this part was:

Photos by:
Theodore B
Expert Research:
Michael L
Expert Research:
Robert G
Expert Research:
Michael H
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Jeff D
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Jameson C
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John H
Updated by:
Adele M
Expert Research:
Adam R
Installed by:
Cole B
Photos by:
Amber A
Expert Research:
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Updated by:
Sarah W

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