1. Trailer Leaf Spring Suspension
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  5. Double Eye Springs
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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 # K71-448-00
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Retail:$298.12
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Trailer Leaf Spring Suspension
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Shipping Weight: 16 lbs
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Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs Suspension Kits K71-448-00
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Suspension kit includes equalizers and hardware for attaching leaf springs to the hangers on your tandem-axle trailer's frame. Includes (2) 4" tall equalizers with built-in grease zerks for easy lubrication and heavy-duty shackle straps. Lowest Prices for the best trailer leaf spring suspension from Dexter Axle. Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs part number K71-448-00 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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  • Reviews (30)
  • Q & A (12)
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  • Why etrailer?

Dexter Axle Trailer Leaf Spring Suspension - K71-448-00

  • Suspension Kits
  • Spring Mounting Hardware
  • Double Eye Springs
  • Tandem Axle
  • Dexter Axle

Suspension kit includes equalizers and hardware for attaching leaf springs to the hangers on your tandem-axle trailer's frame. Includes (2) 4" tall equalizers with built-in grease zerks for easy lubrication and heavy-duty shackle straps.


Features:

  • Suspension kit lets you attach 4 leaf springs (sold separately) to your trailer frame
    • Works with tandem-axle trailers with 1-3/4" double-eye springs
    • Hangers sold separately
  • Equalizers transfer load and impact from one axle to another by permitting movement between the axles
    • Springs attach to ends of equalizers with included hardware
  • 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 with built-in grease fittings
    • 4 Shackle strap assemblies - shackle straps with wet bolts
    • 8 Bronze bushings
    • 2 Dry suspension bolts
    • 4 Wet suspension bolts
    • 14 Flange nuts


Specs:

  • Application: tandem-axle trailers with 1-3/4" double-eye springs
  • Equalizer dimensions: 4" tall
    • 6" Long from center-hole to center-hole
  • Shackle strap length: 2-1/4" from center hole to center hole
  • 5-Year limited warranty


K71-448-00 Dexter Axle Heavy Duty Suspension Kit for Tandem Axle Trailers - 1-3/4" Wide Double-Eye Springs - 4" Tall Equalizers






Customer Reviews

Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs - K71-448-00

Average Customer Rating:  4.7 out of 5 stars   (30 Customer Reviews)

Suspension kit includes equalizers and hardware for attaching leaf springs to the hangers on your tandem-axle trailer's frame. Includes (2) 4" tall equalizers with built-in grease zerks for easy lubrication and heavy-duty shackle straps.

- K71-448-00
by:

Great product, had these on before a leaf spring busted on me and figured just replace all 6 springs and the hangers. Easy to grease and maintain, fit just like the originals that did not have grease-able bolts. Didn't want to reuse the bolts and nuts from the previous grease-able set I had on it, cheap insurance and peace of mind. Painted the hangers and the leaf springs to match my trailer.



- K71-448-00
by:

Very happy with the product and installation instructions. I anticipate better performance of the suspension with the greaseable brass bushings.



- K71-448-00
by:

Perfect product. Easy to install as long as you make sure that the trailer is well supported before banging old shackle bolts out and new ones in. Do not try to hammer the new sleeves into the spring eyes. Use a large C clamp. One of the pre-assembled shackle bolt units was slightly bent, not noticably so, but had to use some heat to install the matching plate.


Comments
It is such a great feeling that the springs are now riding on unborn shackles. The old ones were so worn that I am surprised that the springs were still connected to the chassis. Peace of mind is a great feeling.
John - 02/25/2021


- K71-448-00
by:

Overall I’m very pleased with this heavy duty suspension kit. It fit correctly and I’m sure this wet-bolt system will be much more durable than my old dry-bolt system, which at 4 years old was showing major wear, rust, and fatigue. The reason I gave it only 4 stars was because one of the nuts stripped out under very little torque, as if it hadn’t been heat treated and hardened. The bolt was fine. I reinstalled one of my old nuts and it torqued fine to 50 ft. lbs., per Dexter specifications. All other parts were fine.



- K71-448-00
by:

This suspension kit was perfect for my Forest River Wolfpack. If you have a 40' camper you need this. It raised the rear height giving more of a level pull, stiffer turns, better off-road less roll and less bounce in the camper when setup. All campers are junk quality, so do yourself a favor and upgrade your suspension.



- K71-448-00
by:

Poor machine work.I had to beat and drill to make the parts fit. I have experience in machine work, god help the person trying to install this kit with average skill.



- K71-448-00
by:

Great durable product. Not all the grease zerts were usable due to location on the trailer



- K71-448-00
by:

The product was much stronger than I could get at a local store. I was a bit disappointed with the speed of shipping. I paid an extra $xx for expedited shipping and it still took 5 days to get to our yard.



- K71-448-00
by:

Yesterday I completed the install of the Dexter Heavy Duty Suspension, kit # K71-448-00. The included instructions were pretty good, plus I watched a few YouTube videos before beginning the install. The biggest issue was removing the old bolts from the trailer. Once that was accomplished the new parts went on easily. Now my suspension just looks stronger and with the wet bolts it should last the life of the trailer. The old plastic bushings were pretty well shot and were overdue for replacement. Thanks to etrialer for a great upgrade!



- K71-448-00
by:

The parts were all the right ones and most were Dexter oem parts. The only problem I had was putting the bolts in the frame end of the spring perch. It was easier to take the spring loose from the axle, put the bolt in ,then bolt it back to the axle. I intend to buy all of my future trailer parts from etrailer.



- K71-448-00
by:

I've had a few sets of shackle straps wear out. While replacing them I noticed that the bolts and bushings were badly worn. The equalizer also had heavy wear in the center bolt hole. I decided to replace all of the lighter duty parts with this Dexter heavy duty suspension kit. These shackle straps are much heavier and all of the bushings are bronze. These are also wet bolts, so I'll be able to keep them greased and prevent wear. The parts came in a kit together and were easy to install. Shipping was fast and etrailer honored the lowest price pledge by refunding me 110% of the difference between their price and the advertised price of another seller. I definitely recommend this kit from Dexter and etrailer as the right place to get it.



- K71-448-00
by:

No more squeaky trailer suspension! These are HEAVY duty and give me the utmost confidence trailering cross country! I highly recommend this upgrade!



- K71-448-00
by:

Everything worked great.



- K71-448-00
by:

Quick delivery and great customer service. I've used etrailer many times and always get great service.



- K71-448-00
by:

Love the parts they are very heavy duty



- K71-448-00
by:

Great product, great price! Included all the hardware to replace everything that wears in the spring suspension. Made a loose, very worn trailer like new. Also the bushings are greaseable now so should stay that way.



- K71-448-00
by:

Great product. Everything is heavy duty and no issues after one year of use



- K71-448-00
by:

I finally got around to installing the Dexter suspension kit today ( having received it over a month ago ). Installation went very smoothly. The product looks MUCH better than the stock components that were on my Jayco trailer. I believe the capability to routinely lube the pins will make a big difference in performance and longevity. I've ordered many items from etrailer over the years and they did a great job at delivery with good pricing.



- K71-448-00
by:

Great product .Way better than original parts



- K71-448-00
by:

Arrived sooner than expected.



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Ask the Experts about this Dexter Axle Trailer Leaf Spring Suspension

  • What is the Weight Rating on the Dexter Heavy-Duty Suspension Kit
    The weight capacity for the Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers part # K71-448-00 is really going to be determined by the spring and the tires on the trailer they don't have a specified weight rating. It is for use with 1 3/4" wide springs so let's take the 6-Leaf Double-Eye Spring for 7,000-lb Trailer Axles - 24-7/8" part # SP-198275 this spring is rated for 3500 lbs. and is used on 7000 lb axles. It is the heaviest we offer so this kit that will connect two of these...
    view full answer...
  • Can Dexter Equalizer Kit part # K71-448-00 be Used with Dexter 3,500 lb Axle
    The Dexter Equalizer kit part # K71-448-00 can definitely be used on a 3,500 lb Dexter axle. These aren't normally picked out based on axle capacity instead they are picked out by dimensions. You can compare the dimensions of this to what you have now and you'll know if this would be an easy swap. This is 4 inches tall from the top hole down to the center of the bottom holes and then between the lower holes it measures 6 inches. The shackle strap that's included is 2-1/4 inch which is a...
    view full answer...
  • Recommended Dexter E-Z Flex Upgraded Equalizer to Replace Existing 4 Inch Tall Equalizer
    You could use the Dexter E-Z Flex # K71-652-00 tandem axle suspension upgrade kit for 6K axles or # K71-653-00 for 8K axles. If you used the # K71-652-00, you'd need an equalizer hanger about 2 inches longer to make up that height difference and not throw off your suspension geometry. Or, you could use a shock absorbing equalizer that has the same approximate height as your existing equalizer like the Lippert Road Armor, part # LC696740 which is good for 3500-8000 lb axles, which wouldn't...
    view full answer...
  • Upgraded Heavy Duty Shackle Kit with Bronze Bushings for Tandem Axle Trailer
    For a heavy duty replacement shackle, bolt, and bushing kit for a tandem axle trailer similar to what you referenced but without the equalizers you'd want to order a quantity of two of the part # K71-358-00 for your trailer and you'd be set.
    view full answer...
  • Can 4" Tall Equalizer Be Used To Replace 3" Tall Equalizer?
    You are correct. The Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs # K71-448-00 you were looking at is 4" tall meaning it slightly will lift your trailer. These equalizers are slightly shorter at 6" wide but since it is within 1/8" you wont have any issues. I included a diagram showing the dimensions of the # K71-448-00 and a video review for you to take a look at.
    view full answer...
    Image 1 for
  • Why Does the Dexter Heavy-Duty Suspension Kit K71-448-00 Come with Silver Bolts and Not Black
    The Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers part # K71-448-00 has zinc plated wet bolts which are just as strong as the black bolts you are used to seeing. The metal is the exact same but the coatings are different. The zinc coating is more durable as it resists rust and corrosion better which is why Dexter is now starting to transition from the black bolts to the silver zinc plated bolts. The Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers is a fairly new kit...
    view full answer...
  • Recommended Option To Add At Least 2 Inches Of Lift To A 2017 Heartland North Trail 32RETS Trailer
    To get the amount of lift you want and having tandem axles, you will need QTY.3 of the Correct Track Trailer Alignment and Lift Kit # LC87120. This will cover all 6 hangers and will give you 1-1/4" or 2-1/4" of lift. In combination with the MORryde # MR34AR kit giving you 3/4" of lift already, you will have 3" of lift when all is said and done.
    view full answer...
  • 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 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. I have included a picture of the 7-3/4" equalizer showing where to measure. If...
    view full answer...
    Image 1 for
  • Recommended Replacement Suspension for 6K Tandem Axles
    Thanks for the measurements. I recommend using the 6-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 26" Long # SP-053275. Then use the Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs # K71-448-00. This is a heavier duty assembly with wet bolts for easy lubrication and heavy-duty shackle straps.
    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...
  • Difference Between Dexter Heavy-Duty Suspension Kit K71-448-00 & K71-359-00
    Excellent question, and the difference between the two kits comes down to the dimensions of the equalizers. What you will want to do is match up the size of your equalizer with the size of the equalizer in these kits. - 6" Long, 4" Tall Equalizer: Dexter Heavy-Duty Suspension Kit # K71-448-00 - 5-3/4" Long, 2" Tall Equalizer: Dexter Heavy-Duty Suspension Kit # K71-359-00 Both kits are otherwise for use with tandem axle trailers that have 1-3/4" wide double-eye leaf springs. You...
    view full answer...
    Image 1 for Image 2 for
  • Determining The Correct Replacement Leaf Springs For Tandem Axle Trailer W/ Square Axles
    I would be happy to help you find the correct replacement suspension components for your trailer, but you will need to take a few measurements first. Starting with the leaf springs, you will need to make sure that the tires on the side of the trailer you are working on is off the ground with the trailer supported by the frame as the leaf springs will stretch when the tires are on the ground and weight is applied. If your 26-1/2" measurement was with the tires off the ground the closest...
    view full answer...

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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Updated by:
Lindsey S
Employee Dustin K
Video by:
Dustin K
Employee Brian T
Written by:
Brian T
Employee David F
Installed by:
David F
Employee Michael B
Installed by:
Michael B

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