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Dexter Trailer Springs Over-Under Conversion Kit

Dexter Trailer Springs Over-Under Conversion Kit

Item # K71-385-00
Retail:$109.28
Our Price: $71.75
You Save: 34%
Trailer Leaf Spring Suspension
Shipping Weight: 9 lbs
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Moves your trailer's leaf springs to the top of your axle. Works with 3" diameter axles and double-eye leaf springs only. Great Prices for the best trailer leaf spring suspension from Dexter. Dexter Trailer Springs Over-Under Conversion Kit part number K71-385-00 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (180)
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Dexter Trailer Leaf Spring Suspension - K71-385-00

  • Alignment and Lift Kits
  • Boat Trailer
  • Camper
  • Car Hauler
  • Snowmobile Trailer
  • Utility Trailer
  • Double Eye Springs
  • Round Axle - 3 Inch
  • Dexter

Moves your trailer's leaf springs to the top of your axle. Works with 3" diameter axles and double-eye leaf springs only.


Features:

  • Allows moving leaf trailer springs to top of axle
    • For use with double-eye springs only
  • Fits 3" axle
  • Sleeve bolts allow the setup to install level
  • Includes:
    • (2) Spring Seats
    • (8) 1/2" Nuts
    • (4) Steel spacer nuts
    • (4) 7" Long x 4-1/16" wide x 1/2" diameter U-Bolts
    • (2) Tie Plates


K71-385-00 Trailer Springs Over-Under Conversion Diagram


K71-385-00 Dexter Axle Over/Under Conversion Kit

Installation Details K71-385-00 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 Trailer Springs Over-Under Conversion Kit Installation

Hey guys, Kevin here with "etrailer" and today we're gonna be taking a look at the Dexter Trailer Springs Over-Under Conversion kit. One of the common questions we get here at "etrailer" is how can I raise the height of my trailer so that it can ride more level with my tow vehicle or so that I can add on some bigger tires Dexter's come up with a solution for this depending on the size of your axle and that is their over-under conversion kit which is going to swap your axle and your leaf springs so that you can lift up that trailer just a little bit. So here it is, our completed setup. We have our U bolts going through holding our axle to our leaf spring that is now on top sitting on our new spring seat. One other thing to keep in mind when you are trying to swap up to get those bigger tires is that you're gonna also need to double check the space you have with your fender and then also the body of the trailer itself. So as you see here, if we tried to really size up we really couldn't go with anything that's wider, we'd only be able to go with something that's just a little bit taller wheel wise.

And then on top of that you also are gonna be changing the center of gravity for the trailer. So as you start raising that trailer up it's gonna be a little bit less stable. So you're gonna wanna make sure that you go ahead and pick up one of more rides cross members which is going to mount on the center hangar and it's just gonna kind of give you some extra support, it's gonna run straight across. They also have ones that come with equalizers as well if you decide you wanna upgrade your suspension. So what this kit basically does is just flips your leaf springs up above your axle and what that's gonna give you is the diameter of your axle plus the height of your spring stack.

So you can look anywhere from three to five inches usually with one of these kits just based on what your axle is and then also the springs stack. So before picking out your kit, you're gonna wanna make sure that you measure the diameter of your axles. You can use a caliper to get 100% for sure measurement on it or you could really just take your tape measure up to it. It's really quite a difference between two and three eighths and three inches. So if you look at it, you can kind of really just eyeball it with your tape measure, that way you make sure you get the correct kit.

As far as installation goes, it is very messy. Your suspension, your leaf springs, your axles, all that is can be collecting all kinds of road rhymes. So definitely wear some gloves wear some eye protection if you get under here to hammer out those bolts or really do anything under 'cause there's a lot of mud and stuff that just gets up on there and it's gonna fall down and get in your face, it's gonna get all over your hands. But other than that it really just requires just a little bit of patience and a lot of planning to make sure that when you lift up your trailer that you're properly supporting the weight of the load. So the first step in our installation we're gonna have to remove our wheels.

I already have our trailer lifted up so I'm gonna use an impact gun if you want to go ahead and break off those lug nuts before you lift the trailer up just to make it a little bit easier 'cause then you don't have to worry about the tire kind of moving on you. So the next step is going to be lifting up your trailer. That way you have enough room so you can kind of drop your axles down a little bit because we are gonna have to take off our leaf springs so that we can flip them up to the top of the axle. Now when you do this you wanna make sure that you're looking by the frame and that you also have a bottle jack or maybe a floor jack, something like that that you can easily kind of slip in under the axle 'cause you are gonna wanna have to move that up and down just a little bit to kind of play around with the leaf springs and getting everything into place. So I find the forward jack usually the better option, but we're gonna go ahead and get this supported and then we can start taking out our leaf spring. So now that we have our axle supported, we can go ahead and start taking apart our suspension here, pulling out our leaf spring. And while we're doing this we're going to want to pull from our nut side. We don't want to try and spin the bolt side because that bolt actually has teeth in it and it bites into the shackles strap. And especially on this kit Dexter already has this kind of pressed into that shackles strap. So it's not gonna wanna move at all, it's gonna really fight you and we don't want to grind that out. We wanna make sure that those teeth stay bit into that shackles strap. So we're gonna make sure that we put our breaker bar on the bolt side so it doesn't move at all and we'll try and back that nut off. Now this isn't always easy, the suspension is gonna wanna move on you. This equalizers really just gonna wanna try and bend so you may have to really kind of fight it. There you go. All right, now I can. So typically you could have just pulled off just that one bolt if it wasn't already bit into that shackle strap in the back, but because it is we have to pull off both, we'll pull off this strap here and then we can just pop the whole assembly right out and take off our leaf spring. All right, now that I got those two nuts off I'm gonna go ahead and start breaking down our old U bolts. So we're gonna pull those nuts off, pull our U bolts outta the way while it's all attached just to make it a little bit easier. And then we can move up to that front hanger and pull off that last nut and start pulling out our leaf springs. Now it's definitely a good time to have on some safety goggles and some gloves with your suspension as you can see right here, pretty dirty. Definitely looks like they kind of went through some mud. Don't wanna get any of that on you. I'm just gonna break each of these off kind of evenly, that way it doesn't start leaning one way and make it too hard to get onto. All right, now we can go ahead and just throw our old U bolts and our plate away. We're not gonna be reusing any of this 'cause our kit is gonna come with everything that we need. All right, same thing again, we're gonna break off our front hanger now. All right, so now we can go ahead and pop off our shackle strap. Now would be a great time to replace your shackle straps and your bolts. Maybe switch over to a kit that has wet bolts so that you can easily grease them, keep your suspension running nice and smooth. But also more importantly just to kind of check that shackles strap. You don't want any play in the strap itself right now. This one is in decent shape. You know, it's fitting right up with our bolts, there's no real spacing in there, but over time especially in here, I've seen quite a few where the bolt starts to kind of round it out, make it an oblong hole in there instead or the shackle strap itself just kind of gets bent over time or just kind of rusted out. So now would be a great time to replace it if you plan to do that just because you got it all taken apart. But we can go ahead, pop out shackle strap and bolts and we'll come over to the other side with our hanger. Now we're over at the front hanger, this one you are gonna have to hammer out it does have those teeth in that bolt, I can show you once we get out and it's kind of biting into the metal on our hanger. So we'll just take our hammer. Love taps and we can slip it out. So right there's those teeth that I was talking about and since we're gonna be reusing this bolt instead of replacing it, I wanna make sure that when I put this back in, I kind of line those teeth up with the teeth marks that are in my hanger as well. That way I don't worry about grinding out the hole and then having that bolt slide around inside of our hanger. So now we can take a look at our kit. We're gonna have these new spring seats and that's what's actually gonna sit on the axle and then your leaf springs will sit on top of, it's gonna come with these bump stops. And what that does is it's just gonna screw on here and I wouldn't go too far into it just because we are gonna have to kind of back these back off 'cause this is gonna sit against the spring seat that's already welded onto your axle. And what that does is it just allows it to sit straight on there, it's not gonna start to kind of turn as the suspension kind of puts pressure on it so you won't have to worry about it moving back and forth and throwing anything off. But like I said, we'll only put it up just a little bit on here 'cause we do have to back it all the way back down to have it sit inside that spring seat. So now I'm gonna go ahead and I'm gonna drop my axle down just a bit because I have to get my spring up above it. So I'll just be real careful, go nice and slow. You don't want to go too much and have your axle drop and touch the ground, there's plenty of space. All right, we'll try right about there. So now I'm gonna go ahead, I'm gonna take my spring seat I'm gonna set it down on here and we can kind of start hand tightening down those bump stops, don't use a wrench yet, we wanna make sure that we have this sitting correctly first, but I'm just gonna getting it started there. And then we can drop on our leaf spring and there's a little knot right there in the center of your leaf spring that's gonna sit right into that hole on the springs stack. Set that up in there and we're going to take our plate and it's got these little tabs we're gonna have those facing up. So we'll set that right on top and we'll have it going long wise along with our leaf spring and we'll take two of our U bolts, we're gonna pop those right on the axle and have them slip right up through our plate and take our included nuts and we'll just hand tighten those down for right now just to get it started and like to keep all the nuts real even on here that way you don't have to worry about it starting to turn one way and get kind of cockeyed on here. All right, I get that all hand tightened down and come back with our Torque wrench and torque these down to the specs that are also listed in your instructions that came with your kit. So we'll just keep going around like I said, just try to make it even as you go. Like I only went up like 10 to 20 pounds each as I wind and then just kind of worked it between each bolt just to keep everything even. Now I'm just gonna lower this a little bit trying to get these eyelets on our leaf spring lined up with our hanger and with our equalizer. Now I'm gonna go ahead and I'm gonna hammer that bolt on our hanger here just to get that seated back into the hangar. I wanna make sure that we get that so the bolt head is nice and flush up against our hangar. Now that I got that on, I'm gonna go ahead and I'm just gonna hand tighten that on as much as I can and we're gonna switch back over and get our leaf spring attached to our equalizer. So one thing before we go ahead and stick in our bolts and our shackle straps. If you look at the equalizer right here there is no longer a bushing in there. So it probably had a nylon bushing in it and that completely wore away. And if you look at the bolt you can see the difference it made. This side was sitting in an equalizer and it was just rubbing metal on metal and getting rusted out versus this one where it still had that nylon bushing. So I'm gonna go ahead and order another bushing and we'll get that in place and put our bolts back in. All right, so now I get my replacement nylon bushing. Now when you're doing that all you need to do is measure the diameter in here. Typically it's gonna be 11 16ths and then a nine 16ths inner diameter for your bushings. And then you're just gonna wanna measure the length. So I already measured this, it's about an inch and three quarters so got exactly what I need and I can pop that in. This one's sliding in super easy, but typically I do run into issues where it doesn't wanna move. And what you can do is you can just take a bolt and kind of slide it on there and then kind of hammer it in gently so that you don't tear up the bushing as you're pushing it in or beat it down on the edge of it with a hammer 'cause you'd be hitting it with the bolt instead. But now that that's in, I can go ahead, and slide in our bolts and our shackle strap, put our shackle strap back in place. You may have to kind of, like just a little bit with this even back out just because our axle is kind leaning a little bit right now with my lift. Yep. So now I'm gonna jack this up just a tiny bit just to give a little bit of easier play in here. I may have to just kind of hammer that in a little. Yeah, I think I might want to comb down just a tiny bit. Well, this does take a little bit of just playing back and forth, it's not an exact science here. Now I've got it seated on the bolt, we don't want it sitting on those threads, we want it sitting on the actual bolt itself. And then we can go ahead and put on our nuts again and when we tighten these down we are just gonna get them snug 'cause the suspension does have to roll. If we over tighten this, these shackle straps are gonna stick and your suspension's not gonna move. And now it'd also be a good time to maybe replace your nuts if they're kinda rusted out like these ones are or just at least clean them up a little bit. I think I'm gonna come back with some spray and kind of get these little better looking. Now with all of our hardware tightened down and our nuts on our new over-under kit nice and torque down, we can go ahead and just keep doing this same process on each side of our axles. One other thing, just tech tip wise is if you have your brake lines in the way, so especially like electric brakes like what we have on here, this side has the brakes kind of running through the wires are running through the axle. So they're not really in the way, but on the other side they are kind of hanging down. I did have to just cut that just because the line was so tight they didn't really leave any slack at all. But if you have to do that you can cut it and then just hook it back up together with some heat treat bug connectors. All right, the last thing to do is just fully tighten up our bomb stops here. I'm using a 11 16th wrench and we're really just gonna get this kind of hand tight with our wrench. Don't need to go any further than that we aren't trying to really push that hard against this, but like I said before this is really just to kind of control any travel. We don't want to have our spring seat kind of roll on here at all. Now that we have each of our sides done we can go ahead and slap our tires back on. Now we have this install complete, we we're gonna wanna take this over to a weld shop and get that new spring seat tack welded onto the axle itself just to double check, make sure that it does not slide at all and that we don't have any issues. Well, I think that about does it for today's look at the Dexter Trailer Springs Over-Under Conversion kit. My name's Kevin. Thanks for watching..

Customer Satisfaction Score:


Customer Reviews

Dexter Trailer Springs Over-Under Conversion Kit - K71-385-00

Average Customer Rating:  4.8 out of 5 stars   (179 Customer Reviews)

Moves your trailer's leaf springs to the top of your axle. Works with 3" diameter axles and double-eye leaf springs only.

by:

The lift worked out perfectly,I had the place where I bought the trailer install them because I didn't have a welder to weld the saddle mounts to the axle and that's a must for a safe installation,also I had the place where I bought the trailer do it because they had the capability to align the axle perfect to the trailer after the installation.
The lift added approximately 5 inches to the trailer hight so I could install the off road wheels and tires.The lift didn't affect the handling of the trailer at all.

Thomas

6/14/2023

After a year the lift kit is working out perfectly.

Etrailer Expert

Mike L.

9/6/2023

@Thomas Sweet! We're glad to hear that....


by:

Used two kits on a 10k equipment trailer, with 2, 6k lbs axles. The trailer is an Appalachian 16ft with drop down axles and scrapes coming in and out of my driveway badly. It’s used from equipment hauling to mulch and stone. I had to reuse the old plates. The ones provided were’nt wide enough to accommodate the springs by about 1/4- 1/2inch, although they seemed slightly more robust. I also added washers to the u-bolt nuts. Otherwise I would’ve rated it a 5. I followed the instructions and tack welded the new spring seats in place. Each trailer is different, so as a general kit, this worked very well and I would recommend it. This one actually gave me more clearance than I wanted. I didn’t actually measure spring seat to spring, but I estimate on a 3 inch axle it gave me 5-6 inches of lift. All said and done I feel comfortable that it will safely handle a 10k lbs load.



by:

Jaime at ETrailer was extremely helpful and got my order sent up ups ground since I was having issues using a P.O. Box.
My parts arrived quickly and fit perfectly. I installed them last week and my trailer looks so much better and won’t be scraping on my driveway anymore!



by:

This over-under kit made it extremely easy to move the axles on my Camper. The spring seats with the adjusting nuts made it easy to keep them aligned for welding. I reused my old tie plates because of my shocks I uses a price of 3x3x1/4 angle to bolt the shock to the tie plate. I had read that some people had problems if the had shocks. This gave my camper the extra ground clearance I needed.



by:

Used this kit before and love it.
Very
simple to install and does the trick!
The folks at etrailer are amazing. Always eager to answer my questions and solve any issues I run into.



by:

I replaced my RV's axles to 6000# and used the conversion kit as part of that upgrade. I am very pleased with the product including the shipping and the installation.
The U-bolts were too short for the new leaf springs I installed. I had the U-bolts custom made at a suspension shop to replace the stock bolts.

Nick

11/11/2022

Working as expected - very well.



by:

Very easy online ordering, good prices and they were shipped and received in a few days. Can't beat good service.



by:

Great product! Great company! Gave me the extra clearance I needed to take my cargo trailer offroad in the mountains.



by:

Received the package on Friday afternoon. Reviewed the instructions and postings @ E-Trailer. Pulled the trailer up in front of the house at 0930 Saturday morning and drove it away about 4pm. The biggest time killeer was as others have mentioned getting the 11,000 pound trailer up high enough and safe enough to do the job. Thanks for checking up on me.



by:

Works great. Easy install and gave me the height change that I wanted. Great product and fast service. Thank you.



by:

Great kit, raised my trailer about 5 in ches.



by:

Very easy to install. Be sure to weld the top of the axle as stated.



by:

Kit was good quality and packaging, arrived on time.



by:

Product is of very good quality, it fit well and did exactly what it was supposed to do, well designed and fairly easy to install, I use my trailer more than most people do and I have been totally satisfied with the parts that I purchased, flipping the axles leveled the trailer right up & it pulls great



by:

Have not built a trailer in 30 years. This is apicture of the one i built for good friend. This turn out very nice, heavy duty . All suspension and lights came from E-Trailer . This is the best place to buy and get information. Thank you, Ed.



by:

Works well..I now have all the clearance I need between my pickup box and camper. Camper now rides level.



by:

Quality product - fast shipping.

Jack

10/28/2023

Conversion was straightforward and results were completely satisfactory.

Etrailer Expert

Mike L.

11/14/2023

@Jack We're glad to hear it worked well for you!


by:

We had this kit professionally installed on our 5th wheel by a local shop that builds lifted "monster trucks". It came out great and we love the kit. We are now level. We regularly tow on rough rocky roads and have excellent ground clearance.



by:

All parts fit with just minor grinding. Which was to be expected. But the part that I liked the most was the costumer service. I can’t remember the girls name. But it was the kit that I wanted and needed. But everything on the specs wasn’t exactly what I needed according to your website. And dexsters website directly. According to the website the u bolts were going to be to small for what I needed. Nothing was adding up. It was bothering the girl that was helping me on the phone that it wasn’t making sense. So she had a tech go into the warehouse and cut a box open to verify if the manufacturer was correct or not. Which it turns out that the manufacturer was wrong on the u bolts. They were the bigger ones that I needed. Once again I can’t remember her name. But thank u again for going out of your way to help me out. Great customer service.



by:

Shipped fast. Fair price.



by:

Contacted Jennifer at 4 PM on a Wednesday informing her that I ordered the wrong size axle spring conversion kit. I asked if she could do her best to get it to me as soon as possible. Whatever she did, it was on my porch by 8 AM the next morning. Job Well Done. Will use again



by:

The lift worked as advertised. I also purchased rims , that really completed the project perfectly. Thanks for the great service .



by:

Quick shipping and great communication. Wonderful and Helpful how to videos. You guys are the best!



by:

I never used it so I don’t have good or bad things to say



by:

I like the Product, but the packaging had problems.
Out of the 6 sets I bought 4 sets only had 3 Ubolts in the box.

Etrailer Expert

Brooke M.

11/12/2021

Thank you for leaving a review and for bringing this to our attention. Our customer service team should be reaching out to you in the near future.


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See what our Experts say about this Dexter Trailer Leaf Spring Suspension

  • Is Welding Required to Install the Dexter Trailer Springs Over-Under Conversion Kit
    It is recommended that the spring pads be tack welded in place when installing the Dexter Trailer Springs Over-Under Conversion Kit # K71-385-00 to avoid the axle slipping but aside from that there is no other welding. I have attached the installation instructions and a cutout showing this part of the instructions for you to check out.
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  • Dexter Trailer Springs Over-Under Conversion Kit for 2020 Palomino Puma 286RBSS 5th Wheel
    Based on my research your 2020 Palomino Puma 286RBSS 5th Wheel has axles that are in the 6,000 lb range, which means they should be 3 inch diameter round axles, though I highly recommend verifying this. Also make sure the suspension on your Palomino is double-eye spring suspension, and if so, because it is a tandem axle trailer you will need two of the Dexter Trailer Springs Over-Under Conversion Kit # K71-385-00. I have added a link to a video review of this kit for you to check out as well.
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  • Can Square Axle Trailer Have Axle Moved Below Leaf Spring
    Moving your axles below the leaf springs will certainly give you additional height on your trailer. I can also tell by the picture that you have plenty of room between the tires to go with a taller wheel/tire setup as well. Since you have square axles that don't have a spring seat it would be just a matter of moving the axle below the leaf spring and having the u-bolts face the opposite direction. To pick out new wheels and tires would require knowing what bolt pattern you have on your...
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  • Which Over Under Kit Fits Dexter 6k Trailer Axles
    A 6k Dexter axle like what you have has a 3 inch diameter so the Over Under kit part # K71-385-00 that you referenced is correct and would work. You would need to order a quantity of two of these since it is a tandem axle trailer.
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  • Can a 5th Wheel Trailer be Towed with a Ford F-250 with an 8 Inch Suspension Lift
    Possibly but it depends on how high we can get the trailer and what adjustments can be made to the hitch and pin box. First, a suspension lift makes the towing capacity of the truck unknown and actually lowers it if anything. Just keep this in mind. Measure from level ground to the truck bed and from level ground to the king pin skid plate to see what that height difference is. This will tell you how far off you will be to be able to tow the trailer and if it is possible to get level...
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  • Can Dexter Over Under Kit be Used on Trailer with Slipper Springs
    The Dexter Trailer Springs Over-Under Conversion Kit part # K71-385-00 CAN be used with slipper springs. However, the process of installing this kit on a trailer with a set of slipper springs is more indepth than installing this kit on a trailer with a set of double eye leaf springs. There are two issues that need to be addressed when using the Dexter Trailer Springs Over-Under Conversion Kit on a trailer with slipper springs, movement of the spring seat and dimensions of the u-bolt plate....
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  • Will Dexter Over-Under Conversion Kit Work on a 1997 Jayco 277 5th Wheel Trailer
    You should also be able to adjust the trailer pin box up or down as needed. But if that still doesn't provide a level ride then you can use the Dexter over/under conversion kit # K71-385-00 (you would need 1 kit for each axle) as long as you are using double eye leaf springs and not slipper springs. Please note that raising the trailer will also raise its center of gravity and could change the ride characteristics and make the trailer more susceptible to sway.
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  • How Should a Flat Bed Gooseneck Trailer Be Pulled When Empty on a Flat Bed Truck
    Even when the flat bed trailer is empty it still needs to be kept level. When the trailer is level it will have even weight on each of the tires therefore not wearing them more than necessary. As a side note, when you leave your gooseneck trailer high in the front it can cause some sway issues. Sway is not as big of an issue with gooseneck trailer, however, it is something to keep in mind. If your trailer is level when it is loaded and the issue that you are having is the nose is high...
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  • Why Can't Trailer Axles Just be Flipped
    This is a really great question, but the reason is because they put a bow in trailer axles to compensate for the weight that is on them so that the camber is correct. If you were to just rotate the axle the wheel would be cambered way out and would wear out quick and handle weird.
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  • How Much Will the Dexter Trailer Springs Over-Under Conversion Kit, # K71-385-00 Raise the Trailer
    First, you would need to have the spring seats welded to the top of the axle. You cannot flip the axle because then the existing spring seats would be bent the wrong way. What you can do is measure from where the springs are attached to the spring seat now up to the top of the axle to determine the approximate amount it will raise the trailer when using the Dexter Trailer Springs Over-Under Conversion Kit, # K71-385-00. To use this kit you will need to have a 3 inch diameter axle. When...
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  • Options for Adjusting Trailer Height on a Gooseneck Livestock Trailer
    Mounting your axle under your leaf springs will lift your trailer more than 7 inches (4 inches for your axle diameter plus 3 inches for the thickness of your leaf springs and spring seat). Since you have a livestock trailer, that would not be the best option to level out your trailer. The first step that I would take is to check the coupler on your gooseneck trailer. Most gooseneck trailers have adjustable couplers that allow you to adjust the height of the trailer at the gooseneck hitch....
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  • Why Cant an Over/Under Conversion Kit be Used on Slipper Spring Suspension
    When moving the leaf spring stack above the axles using an over/under conversion kit # K71-385-00 there is the potential for more travel in the suspension. Double-eye springs are bolted on so excessive travel would not affect them like it would a slipper spring which is just sort of hanging on to a hanger on one end. But not to worry. All you have to do to get additional height with slipper spring suspension is replace the hangers with taller hangers. We have many different options, see...
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  • Install Instructions for an Over Under Kit on a Camper Trailer
    I attached a picture that details how to install an over-under kit like the # K71-385-00 that you referenced. You would need to disconnect the wires that run to the brake assemblies but they would easily reconnect when you are done. Its not a difficult process, but if you have basic tools and jack stands you shouldn't have a problem. However, it is recommended that you tack weld the seats in place.
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  • Do Spring Seats Have to Be Welded to Install Axle Over Under Kit
    Yes when you do an over-under kit you have to weld the seats to the axle for it to be installed properly. It is recommended to tack weld the new spring seats into place but a complete weld job is not required when installing the over-under conversion kit # K71-385-00.
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  • Torque Recommendation for the Nuts of U-Bolt Kit K71-385-00
    The torque for the U-bolts are a minimum of 30 ft-lb and a maximum of 40 ft-lb for the U-bolts that come with the part # K71-385-00 that you referenced.
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  • Can Trailer Shocks Be Used After Installing Dexter Over-Under Conversion Kit
    Looking at the picture you attached of your trailer hooked up you will definitely benefit from using the Dexter Over-Under Conversion Kit # K71-385-00 that you referenced. This will move the leaf springs to the top of the axle, raising the trailer by the axle diameter and leaf spring stack height. You may be able to still use your existing shocks depending on how you currently have them attached. For some reason the picture you mentioned of your current leaf springs did not come through....
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  • How Much Lift Does Installing an Over-Under Kit on a Trailer Give
    When you use an over under kit like the part # K71-385-00 that you referenced you will gain the diameter of your axle, the thickness of your spring seat, and the thickness of your leaf springs as a lift. Also what you should consider is that when determining how much fender clearance will be left after going to a taller wheel/tire. Only half of the added diameter will be taken up in the fender well. So if you go with a 2 inch taller tire you would only lose 1 inch of fender/tire clearance.
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  • Preventing Fifth Wheel Camper From Dragging When Entering Driveway
    Since the axle is already mounted below the springs, an over-under conversion kit like the # K71-385-00 would not be helpful. Going with taller spring hangers (see link) might be an option, however keep in mind that changing the suspension geometry of your fifth wheel trailer might alter its ride characteristics and make it more prone to trailer sway. Additionally, changing the height might reduce the clearance between the top of your truck bed side rails and the bottom of your trailer...
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  • Do Leaf Spring Bolts Get Torqued Down
    Leaf spring shackle bolts don't get torqued down as that prevents them from being able to move as the suspension flexes. You will end up using lock nuts that just get tightened down till they sit flush and the nylon in the nut keeps it from backing off. If you need a 2 inch lift but are on springs that are totally flat new springs will get you to the height you are wanting. If you can get me the length of your springs when they have not weight on them I can pick you out the correct leaf...
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  • Availability of Bump Stops When Installing the Over-Under Conversion Kit # K71-385-00
    The instructions for the Dexter Trailer Springs Over-Under Conversion Kit # K71-385-00 for your 3" axle do recommend installing a bump stop when going from underslung (leaf springs under the axle) to overslung (leaf springs over the axle) because of the reduced trailer frame clearance. The closest thing that we have to trailer bump stops is our selection of trailer suspension enhancement which I have linked for you to filter through. These are filtered by axle weight capacity and have...
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  • Can Axles of 2007 Newmar Cypress 5th Wheel be Moved to Other Side of Leaf Springs
    Yes you could move the axles of your Newmar fifth wheel trailer to be on the other side of the leaf springs with an over under kit like the # K71-385-00 which was designed for 3 inch axles like what you have.
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  • Recommendation to Move Leaf Springs to Top of 3 Inch Axle on Trailer
    We have exactly what you need! To move the leaf springs on your trailer to the top of the axle, you will want the Dexter Trailer Springs Over-Under Conversion Kit # K71-385-00. This is designed for 3 inch axles and for use with double-eye springs only. This kit will lift your trailer the height of the axle and leaf spring stack, making it easier to tow level with your lifted truck. I have attached a short video demonstration along with the written installation details that you can also...
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  • Can Dexter Over Under Axle Kit Be Used on Trailer with Slipper Springs
    The Dexter Trailer Springs Over-Under Conversion Kit part # K71-385-00 CAN be used with slipper springs. However, the process of installing this kit on a trailer with a set of slipper springs is more indepth than installing this kit on a trailer with a set of double eye leaf springs. There are two issues that need to be addressed when using the Dexter Trailer Springs Over-Under Conversion Kit on a trailer with slipper springs, movement of the spring seat and dimensions of the u-bolt plate....
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  • How to Raise Suspension of Trailer that Has Slipper Springs
    Since one end of a slipper spring is suspended instead of bolted to a hanger or shackle strap the Dexter Trailer Springs Over-Under Conversion Kit part # K71-385-00 and other likes them are considered unsafe for slipper springs. The only other option to raise the trailer is to replace the spring hangers on your trailer with longer ones. This will raise the trailer frame relative to the axle which can alter the handling so keep that in mind. I have attached a link to the slipper spring...
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Adam R
Expert Research:
Adam R
Employee Lori W
Expert Research:
Lori W
Employee Rachael H
Expert Research:
Rachael H
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Jacob T
Video Edited:
Jacob T
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Matthew E
Updated by:
Matthew E
Employee Noah M
Updated by:
Noah M
Employee Jonathan Y
Video by:
Jonathan Y
Employee Kevin C
Test Fit:
Kevin C

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