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Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs

Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs

Item # K71-449-00
Retail:$357.48
Our Price: $242.94
You Save: $114.54
Trailer Suspension Parts
Shipping Weight: 16 lbs
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Suspension kit includes equalizers and hardware for attaching 4 leaf springs to the hangers on your trailer's frame. Works with 35" axle spacing. Built-in grease zerks for easy lubrication. Heavy-duty shackle straps ensure strength. Great Prices for the best trailer suspension parts from Dexter. Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs part number K71-449-00 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (147)
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Dexter Trailer Suspension Parts - K71-449-00

  • Suspension Kits
  • Boat Trailer
  • Camper
  • Car Hauler
  • Snowmobile Trailer
  • Utility Trailer
  • Double Eye Springs
  • Tandem Axle
  • Dexter

Suspension kit includes equalizers and hardware for attaching 4 leaf springs to the hangers on your trailer's frame. Works with 35" axle spacing. Built-in grease zerks for easy lubrication. Heavy-duty shackle straps ensure strength.


Features:

  • Suspension kit lets you attach 4 leaf springs (sold separately) to your trailer frame
    • Works with 1-3/4" wide double-eye springs
    • Hangers sold separately
  • Equalizers transfer load and impacts from one axle to another by permitting movement between the axles
    • Springs attach to ends of equalizers with included hardware
  • Wet bolts secure equalizers and springs to the hangers on your trailer
    • Grease zerks allow for fast, easy lubrication to keep moving parts functioning at their best
  • Heavy-duty shackle link assemblies with bolts secure springs to equalizers
    • 1/2" thick links are thicker than standard straps for greater durability
  • Bushings fit into spring eyes to help maintain a well-functioning system and ensure proper sizing for suspension bolts
    • Bronze construction resists corrosion
  • Kit includes:
    • 2 Equalizers
    • 8 Shackle strap assemblies - shackle straps with wet bolts
    • 4 Wet bolts with zerk fittings
    • 2 dry bolts
    • 8 Bronze bushings
    • 14 Flange nuts


Specs:

  • Application: tandem-axle trailers with 1-3/4" double-eye springs
  • Axle spacing: 35"
  • Equalizer dimensions:
    • Distance between outer shackle bolt holes (center on center): 7-3/4"
    • Distance between hanger bolt hole and shackle bolt hole (center on center): 3-7/8"
    • Height of side bolt hole to hanger bolt hole: 3"
  • Shackle strap length: 2-1/4" from center hole to center hole
  • 5-Year limited warranty


Dimensional Diagram



K71-449-00 Dexter Axle Heavy Duty Suspension Kit for Tandem Axle Trailers - 1-3/4" Wide Double-Eye Springs





Customer Satisfaction Score:


Customer Reviews

Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs - K71-449-00

Average Customer Rating:  4.6 out of 5 stars   (147 Customer Reviews)

Suspension kit includes equalizers and hardware for attaching 4 leaf springs to the hangers on your trailer's frame. Works with 35" axle spacing. Built-in grease zerks for easy lubrication. Heavy-duty shackle straps ensure strength.

by:

I really wanted to give this kit a 5 star review, however it fell short in more than one way. The parts are very nice and heavy duty looking and went together purrty good. However, when I went to grease the shackles none took grease it just came out around the fitting, so I changed the end on my grease gun thinking it was just worn out, still same problem. I had to hold the fitting on the zirk as hard as I could and finally got them to take grease, one still hasn't taken grease and not sure what I'm going to do. I left all hardware loose to this point to make sure there was no un nessesary pressure on anything hoping it would take grease easy. It's like the heads of the zirks are a size to small. After greasing everything the best I could I tightened everything up, during this process I had 2 nuts that the threads pulled out of... Just as they got tight they started to loosen up, I was using a standard length 1\2 drive craftsman ratchet, and I'm not hulk. I ended up having a few nuts and washers that worked but still this shouldn't have happened. Makes me wonder about the rest of the metals strength. Looks heavy duty but I'm starting to wonder about longevity.



by:

After receiving my shipment yesterday, I was concerned that parts may have been missing due to the shape of the shipping box and the lack of packing material.

During the installation of the shackles, the third shackle nuts/bolts stripped out when tightened by hand. The shackle had to be cut off since the nuts could not be properly tightened. I have emailed etrailer with this issue and hopefully we can resolve the issue quickly.

Etrailer Expert

Katrina D.

2/15/2024

Yikes, that does not look good at all. Let's get you over to customer service and get this fixed.



by:

Installed on Ranger boat trailer, better than new, I recommend this product.



by:

Love these heavy duty shackles and greasable are way better.



by:

The customer service was outstanding! The wrong kit was ordered but Terri in customer service was right on top of it! Will definitly do business with E-Trailer in the future !



by:

Everything I have ordered from etrailer has been great quality. The Heavy duty Suspension kit that I ordered was a great investment. Much stronger than the original parts!



by:

the only problem was the packaging was not heavy enough to hold the parts, therefore the box was damaged in shipping. Some parts were missing. I called and they were replaced no problem. All parts fit perfectly. good people to work with.



by:

Fit up perfectly. Split the old nuts using a right angle grinder with a cutting wheel. Heated the spring enough to soften the plastic bushing and allow the bolt to be pounded out with a hammer. I used an 11/16 drill bit to remove rust and debris from spring end and used a c-clamp to press in the new bronze bushing. Everything else went together like the instructions said. Attached a before and after photo.

Eugene M.

7/22/2020

Working great



by:

its sucks when you only get half the pa rts

Etrailer Expert

Brooke M.

4/15/2024

Definitely, it does! It looks like your package should have been delivered two days ago. Please let us know if anything is still unaccounted for.



by:

The kit was great. Very heavy duty and installation was straightforward and quite easy. The reason for the 4 star rating was the grease zeros. I had to remove all of them from the bolt heads and replace them with new ones because they were quite literally junk and would not take grease because the heads were to small. I have been a long time Dexter fan and I sincerely hope this is not a sign of things to come.



by:

Very heavy duty, good quality. I would recommend this product.



by:

Fit my trailer perfect. Make sure you measure correctly when ordering as there are 2 different kits. Every thing was correct and I cant believe how fast it got here with free shipping. The shackles are twice the thickness of my original shackles. Again great service and great product



by:

Well packaged, good online video instructions. Very sturdy and solid construction. Our travel trailer original equipment components were worn through the plastic bushings and had badly worn shackles after only 17000 logged miles.. Thanks for making this upgrade available. Installation went smoothly. Took about 4 hrs total including set up time.



by:

10000 miles and no problems, replaced springs at same time, no bottoming under full load, quiet.



by:

Always the best of quality and very helpful people. I always look here first!!!!



by:

They arrived before time. Greatly appr eciated.



by:

Although the product is a good one, the packaging was bad. The box was damaged and three of the parts were damaged. I was lucky to have easy outs and spare grease fittings to replace the grease fittings that were broken. Had all of the materials inside the box been stuffed with "peanuts" or bubble wraps, they wouldn't have been damaged ...at least I think so.

Jenny N.

5/1/2023

It is a shame that the suspension kit arrived this way. Packaging these parts can be a challenge and I know our shippers do their best. I will have our Customer Service team reach out to you.



by:

Great service. The part was correct and received like promised



by:

Beautiful work with greaseable joints!



by:

These were an exact fit and worked perfectly. Good quality along with grease zerks on every point are a big plus. I recommend this kit to friends.



by:

Suspension was very easy to install and works great!! The grease fittings will make this last much longer than the original suspension. Love it.



by:

Box came heavily taped. After starting to put it together found two shackles missing and two nuts. Had to spend $xx on parts to finish the job

Etrailer Expert

Katrina B.

2/22/2023

Oh no, thats not good! Lets get you to our customer service department and see what they can do for you.



by:

Was a good fit but did not install until this spring. No worries do I have after replacing the system.

Michael

7/9/2023

Working well no issues anter may loads



by:

The package is missing shackle links. Needing to use this trailer asap and can’t .



by:

smooth ordering and delivery


25
147
Show More Reviews

See what our Experts say about this Dexter Trailer Suspension Parts

  • Availability of 7-3/4 inch Equalizer Kit with 3-1/8 inch Long Shackles
    The lengths of the shackles that come with the equalizer kit part # K71-449-00 that you referenced are 2-7/8 inches measured from hole center to hole center. If yours are currently 3-1/8 inches this change would slightly lower the height of the trailer but it would still work. To match the shackle lengths and also be the thicker style you'd need the kit # MR76ZR with the # K71-655-00 which is cushioned. Or for just a standard equalizer and shackle kit you'd want the # e99ZR.
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  • Lift Kit and Equalizer Upgrades for 2016 Coachmen Apex Ultra Light 269RBSS
    The Lippert lift kit part # LC425750 that you referenced is a single axle lift so it would not work on your 2016 Coachman Apex Ultra Light 269RBSS as it is a tandem axle trailer. For a tandem axle lift kit the part number you'd need is the # RR23QX instead. This comes with all of the hardware needed for install. If you were looking for an upgraded equalizer kit too we had the part # K71-449-00 for a standard equalizer or the part # K71-653-00 which comes with cushioned equalizers. Both...
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  • Availability of Equalizer Kit for 5-3/4 Inch Curved Equalizers
    We have a kit for 5-3/4 inch long equalizers that will work for you, but it will include replacement hangers. The # K71-449-00 kit does not include hangers. The kit you will want to use is the Tandem-Axle Trailer Hanger Kit for Double-Eye Springs # AP233-H248. This kit includes 2 of the 5-3/4 inch curved equalizers like you referenced. Also included are shackle straps, shackle bolts, and lock nuts. The included hangers measure 3-1/4 inches tall for the front and rear, and 3-5/8 inches...
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  • Will Upgrading Trailer Suspension Stop Tires from Blowing Out
    Before spending a lot of money on a trailer overhaul let's first look at the reasons tires blow. Basically, trailer tires blow from excessive heat or overloading. Excessive heat can come from running the tires faster than they are rated for, under inflating the tires, or because something is off with the suspension. Make sure that you are within the capacity of the tires and that they are inflated to the maximum psi indicated on the tires. This is because trailer tires are built with...
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  • Replacement Suspension Kit For Tandem Axle Trailer With 35 Axle Spacing
    With the information you provided on your current equalizers having 7-3/4" center on center you would need Dexter Heavy-Duty Suspension Kit Item # K71-449-00 for tandem axles with 35" spacing. Item # K71-359-00 would not be compatible because they are designed for tandem axles with 33" spacing.
    view full answer...
  • Can Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers # K71-449-00 Replace Longer Shackles
    You would be fine to use the Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers # K71-449-00 that you referenced which has shackle straps that are 1-1/4 inch shorter than what you have now. The ride height of the trailer would lower slightly but the suspension would still work great overall without any issue.
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  • Which Equalizer Upgrade Kit For 33 Inch Axle Spread Tandem Axle Trailer
    The Dexter equalizer's that you have on your trailer are 5 3/4 inches long. An upgrade equalizer kit that would work for your setup is the Equa-Flex Cushioned Equalizers - Double Eye Springs # LC279687. Since you mentioned that you are currently using 3 1/8 inch shackle's you will need the Lippert Components Tandem Axle Equa-Flex AP Kit - Wet Bolts - 3-1/8" Long Shackles # LC64FR which includes everything you need to complete the install. I included a video of the Equa-Flex Cushioned Equalizers...
    view full answer...
  • Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers
    There is a heavier duty version of the etrailer Suspension Kit for Tandem-Axle Trailers item # e99ZR and it has the wet bolts and bronze bushings you are looking for. It's the Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers item # K71-449-00. This kit has wet bolts that secure equalizers and springs to the hangers on your trailer, grease zerks that allow for fast, easy lubrication to keep moving parts functioning at their best, and heavy-duty shackle link assemblies with bolts...
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  • Does the Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers Come with Bolts for the Hangers
    The Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers part # K71-449-00 does not come with eye bolts for the leaf spring side which is attached to the hanger. That said, all you would need to do to obtain these is simply purchase four additional bolts, if you prefer wet then you can use part # 126B2.
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  • Recommended Wet Bolt Suspension Upgrade On Tandem Axle Trailer
    The Dexter Heavy-Duty Tandem-Axle Trailer Suspension Kit for 1-3/4" Wide Double-Eye Springs # K71-449-00, you mentioned will work well if you have equalizers that are 2.88 tall x 7.67 inch centers. This will be the ideal upgrade for your system. If your equalizers are a different size, you can use the Never Fail Tandem Axle Suspension Upgrade Hardware Kit for Double Eye Springs # LC281285 will work with your current equilizers.
    view full answer...
  • How to Determine Correct Suspension Kit For Tandem Axle Trailer
    Wheelbase isn't a good way to determine what heavy-duty suspension kit you need, despite manufacturers putting that as a listing. Instead, what you need to do in order to determine the right suspension kit is measure your equalizer from center to center of the bolt holes horizontally as well as from the bottom of the equalizer to the top bolt hole. For example, the Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers # K71-449-00 measures 7-3/4" horizontally and 3" tall. I have added...
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  • Trailer Suspension Kits With 7-3/4 Long Equalizers, Bushings, Bolts and Shackle Straps
    Yes, the equalizer that is included with the Suspension Kit # e99ZR will come with nylon bushings installed. I prefer using bronze bushings with wet bolts myself as they will allow for smoother and quieter operation. The Dexter E-Z Flex Suspension Kit # K71-653-00 contains a cushioned Equalizer along with all the bronze bushings, wet bolts and shackle straps needed. Or you can use the Dexter Heavy-Duty Suspension Kit # K71-449-00 if you do not want the cushioned equalizer to reduce...
    view full answer...
  • Will the Dexter K71-449-00 Work With Trailers Up to or Over 16,000 pounds?
    I spoke with Dexter and there is actually no maximum axle capacity for the Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs # K71-449-00. With that being said, there will be no issues using this with 16k , or higher, GVWR trailers. The important information needed for the # K71-449-00 will be the axle spacing, shackle length, and the equalizer dimensions. -Application: tandem-axle trailers with 1-3/4" double-eye springs -Axle spacing: 35" -Equalizer...
    view full answer...
    Image 1 for
  • How To Choose the Correct Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers
    I don't have any information as to what leaf springs are on any one particular trailer such as a 2007 Jayco Jay Flight 29BHS but if they are double eye leaf springs which are the most common then we should have a Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers that will work. In order to choose the correct one you just need to make note of the equalizer dimensions; part # K71-449-00 for 7-3/4" long, part # K71-448-00 for 6" long, or part # K71-359-00 for 5-3/4" long.
    view full answer...
  • Do the Bolts of the Dexter Heavy-Duty Tandem-Axle Trailer Suspension Kit Have Splines
    The wet bolts that come with the Dexter Heavy-Duty Tandem-Axle Trailer Suspension Kit # K71-449-00 are not splined. They are totally smooth. I attached a picture of what they look like. Splines are typically used for studs to help prevent it from rotating. There would be no need for that for a trailer shackle bolt.
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    Image 1 for
  • How to Lift Trailer When Trailer Already has Springs Over the Axles
    If you cannot use an over/under conversion kit then the only other way to raise the height of the trailer is to have the old suspension hangers cut off and new, taller ones welded on by a qualified professional welder. I have included a link to the hanger main page for you. You will need to go with hangers that are 1.50-2 inches taller than what you currently have on your trailer.
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  • Thickness of Shackles of the Dexter Heavy-Duty Tandem-Axle Trailer Suspension Kit # K71-449-00
    The Dexter Heavy-Duty Tandem-Axle Trailer Suspension Kit # K71-449-00 that you referenced is designed for tandem axles with a 35 inch axle spacing and springs that are 1-3/4 inches in width. If that is what you have this setup would work great. I went out into our warehouse to measure the thickness of the shackles and they are right a 1/2 inch. You would have a hard time breaking these.
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  • Dexter Suspension Kit For Tandem Trailers With Equalizers Measuring 7-3/4, 6, or 5-3/4
    The Dexter suspension kits are high quality and include "wet bolts", bronze bushings instead of nylon and thick shackles. Properly maintained these would likely outlast typical factory kits three times over! To determine which kit is right for you simply measure the distance across the equalizer and use item # K71-449-00 for 7-3/4" long, item # K71-448-00 for 6" long, or item # K71-359-00 for 5-3/4" long. I have included a picture of the 7-3/4" equalizer showing where to measure. If...
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    Image 1 for
  • Correct Dexter Heavy-Duty Suspension Kit for a 2010 Keystone Cougar 5th Wheel
    The correct Dexter Heavy-Duty Suspension Kit for a 2010 Keystone Cougar 5th Wheel is part # K71-449-00. That said, if you are looking for a true upgrade I recommend going with the Dexter E-Z Flex Suspension Kit part # K71-653-00 since the cushioned equalizers will do a far better job of helping to reduce road shock. These options are both designed for the 35" axle spread.
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  • Bolt Position For The Dexter Suspension Kit For Tandem-Axles # K71-449-00
    When using the Dexter Heavy-Duty Suspension Kit # K71-449-00 I recommend taking your bolt with grease and feed it from the tire side to the inside of your trailer. This will prevent your tires from getting scratched on the more abrasive side and spread the grease evenly throughout the hole on the suspension kit.
    view full answer...
  • Replacement Suspension Kit For Tandem Axle 1 3/4 Springs With 7-3/4 x 2-7/8 Inch Equalizers
    In order to retain your current suspension geometry, you'll need to use an equalizer of the same length and height as the 7-3/4 x 2-7/8 equalizer you currently have. The Dexter Axle # K71-449-00 offers equalizers that are the same width and height as what you have now. The only difference is that the shackle links are a tiny bit shorter, at 2-1/4 inches versus the 2-1/2 you currently have. This difference is very small and won't be enough to have a negative effect on your suspension geometry. Thanks...
    view full answer...
  • Will the Dexter E-Z Flex Suspension Kit Work for Boat Trailer in Saltwater
    The Dexter E-Z Flex Suspension Kit # K71-656-00 is not primarily designed to be used in saltwater but it will hold up about as well as your regular equalizers. The bronze finish will help to resist corrosion. In order to prolong the life of the E-Z Flex, I recommend rinsing everything down with fresh water after you take the trailer out. This will help all of the components of your trailer and help prevent corrosion. I would recommend this kit over something like the Dexter Heavy-Duty...
    view full answer...
  • Is the Center Suspension Hanger Being Taller with the Dexter Equalizers K71-449-00 Normal
    The center hanger on tandem axle trailer is pretty commonly taller than the other hangers as the shackle straps and equalizers push the final height of the end of the spring up higher. Basically the longer hanger compensates for the shackle straps so as long as the leaf spring eyes are level you would be totally fine. Since the equalizers part # K71-449-00 aren't as tall as others going with a taller center hanger would be normal under most circumstances. Are your trailer spring eyes level...
    view full answer...
  • Will Installing Leaf Springs with More Leaves Require New Equalizers and Will They Help Lift Trailer
    If your existing leaf springs originally measured 25-3/4 inches, it is highly likely that you can put 26 inch long leaf springs, like # e27SR, on your trailer without needing to change the equalizers or move your spring hangers. If the existing springs originally measured 25-1/4 inches, moving up to 26 inch long springs will likely require some adjustments for your trailer. Using leaf springs that are longer and have more leaves will not help lift your trailer. Two ways to help lift...
    view full answer...


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Info for this part was:

Employee Michael H
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Employee Laura H
Written by:
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