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  1. Weight Distribution Hitch
  2. Reese
  3. 500 lbs
  4. Fits 2 Inch Hitch
  5. WD With Sway Control
  6. Allows Backing Up
Reese Steadi-Flex Weight Distribution System w/ Sway Control - Trunnion - 6K GTW, 600 TW

Reese Steadi-Flex Weight Distribution System w/ Sway Control - Trunnion - 6K GTW, 600 TW

Item # RP66558
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Retail:$1,231.59
Our Price: $630.30
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Weight Distribution Hitch
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Shipping Weight: 76 lbs
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Product Expert Lindsey S

Is this right For you? Product Expert Lindsey S says:

Yes, if you:

  • Experience pretty significant trailer sway on a regular basis
  • Don't want to have waste time with difficult, outdated adjustment methods during setup
  • Have a lighter weight trailer with 400 lbs – 600 lbs of tongue weight

No, if you:

  • Want a maintenance-free hitch - you'll have to tighten and eventually replace the friction pads on this
  • Hate noise - the friction pads minimize grinding sounds, but the system is still pretty loud during turns
  • Don't have a big problem with trailer sway - you might just end up with a really rigid ride
Friction in brackets and in head works to prevent and correct trailer sway. Chainless brackets with automotive-style friction pads hold spring bars firmly in place to help keep trailer in line with your tow vehicle. Adjustable shank included. Lowest Prices for the best weight distribution hitch from Reese. Reese Steadi-Flex Weight Distribution System w/ Sway Control - Trunnion - 6K GTW, 600 TW part number RP66558 can be ordered online at etrailer.com or call 1-833-496-1390 for expert service.
  • All Info
  • Reviews (200)
  • Q & A (0)
  • Photos
  • Why etrailer?

Reese Weight Distribution Hitch - RP66558

  • 500 lbs
  • Fits 2 Inch Hitch
  • WD With Sway Control
  • Allows Backing Up
  • Includes Shank
  • Reese
  • Prevents Sway
  • Electric Brake Compatible
  • Surge Brake Compatible
  • 4-Point

Friction in brackets and in head works to prevent and correct trailer sway. Chainless brackets with automotive-style friction pads hold spring bars firmly in place to help keep trailer in line with your tow vehicle. Adjustable shank included.


Features:

  • Evenly distributes weight over axles of tow vehicle and trailer for stability and control
    • Creates a more level ride for both tow vehicle and trailer
  • Integrated sway control limits side-to-side movement of trailer
    • Brackets keep spring bars in place for a rigid system that holds your trailer in line
      • No lift chains - eliminates unwanted movement of spring bars
      • Automotive-grade friction material lines brackets to help correct any sway that may occur due to winds, curvy roads, or sudden maneuvers
    • System head provides frictional resistance to limit movement of spring bars
  • Trunnion spring bars are hot rolled and tapered for superior strength and flexibility
    • Bars flex appropriately over uneven terrain for a controlled, even ride
  • Desired head tilt is achieved with traditional washer design
    • Add or remove washers from spacer rivet to tilt head up or down
  • No-drill, clamp-on brackets can adjust along the trailer frame to accommodate frame-mounted items such as gas tanks, toolboxes or generators
  • Included lift handle eases installation by reducing lifting required by trailer jack
  • Steel shank has corrosion-resistant powder coat
  • System includes head assembly, adjustable shank, trunnion spring bars, sway control brackets, lift handle, pin and clip, and all necessary hardware
    • Hitch ball sold separately - requires 1" diameter shank


Specs:

  • Tongue weight: 400 lbs - 600 lbs
  • Gross towing weight: 6,000 lbs
  • Fits: 2" x 2" trailer hitch receivers rated for use with weight distribution systems
  • Maximum trailer frame height: 6"
  • Sway control bracket positioning: 25" - 32" back from center of coupler
  • Shank length:
    • 7-3/4" From center of hitch pin hole to center of adjustment holes
    • 8-3/4" From center of hitch pin hole to front of shank
    • 6-3/4" From center of hitch pin hole to back of shank
    • 12" Overall
  • Total height adjustment along shank: 7-1/2"
    • Maximum rise: 7-5/8"
    • Maximum drop: 2-7/8"
    • Overall height: 8-3/4"
    • Holes are spaced 1-1/4" apart on center
  • Limited lifetime warranty


Included w/ SystemRequired - Sold SeparatelyOptional Add-Ons
  • Adjustable Shank
  • System Head
  • 2 Sway Control Brackets
  • 2 Spring Bars
  • Lift Bar
  • Hitch Pin and Clip
  • Necessary Installation Hardware
  • Hitch Ball w/ 1" Diameter Shank
n/a

Weight Distributing Hitch

Create a stable ride for your tow vehicle and trailer with a weight-distribution hitch. Adding spring bars to your towing system applies leverage, which transfers the load that is pushing down on the rear of your vehicle to all the axles on both your tow vehicle and your trailer, resulting in an even distribution of weight throughout. The result is a smooth, level ride, as well as the ability to tow the maximum capacity of your hitch.



Selecting a Weight-Distribution System

The tongue weight rating is the most important factor in determining which size weight-distribution system you should use. If the bars of the system you choose are rated too high for your setup, they will create a rigid ride, which can result in a bouncing trailer. If, on the other hand, the bars are not rated high enough, the system will be unable to properly distribute the weight, rendering it virtually useless.


To determine the proper weight rating for a weight-distribution system, you must first determine your trailer's tongue weight. Then add to that the weight of the cargo behind the rear axle of your tow vehicle. These two measurements make up the tongue weight rating for a weight-distribution system.


Integrated Dependent Sway Control

The Steadi-Flex weight distribution system works to stop trailer sway before it begins. This is achieved in 2 ways. First, the system head is designed to firmly hold the spring bars in place to provide tight resistance and help ensure that your trailer tracks behind your vehicle. Second, the spring bar brackets that mount on your trailer's frame produce friction with the bars whenever any side-to-side motion occurs. This keeps the bars from moving, also helping to hold your trailer in a straight line.


System Head with Steel-on-Steel Friction

System Head

The head of the Steadi-Flex system firmly holds the spring bars in place at the hitch point. This tight hold helps to keep the bars from moving, which in turn helps to ensure that the trailer is held firmly in place behind your vehicle. If any sway or side-to-side movement does occur, the spring bars will move only slightly inside of the system's head. This steel-on-steel contact produces frictional resistance to limit further side-to-side motion of the bars, limiting the motion of your trailer in the process. The Steadi-Flex head is wider than most weight distribution heads. This design allows for greater surface area for the spring bars to move against. This makes it easier to produce the friction that resists sway.


Sway Control Brackets with Automotive-Grade Friction Material

Friction Material Brackets

The spring bars attach to the trailer frame with fixed, sturdy steel brackets. They sit on top of the brackets instead of being suspended by chains like the bars that are on traditional weight distribution systems. Chain suspensions typically allow a good deal of side-to-side play in the system. Because the Steadi-Flex has brackets in place of chains, that unwanted movement of the spring bars is eliminated. This helps to keep your trailer in line behind your vehicle. In addition, these brackets create friction to limit any side-to-side movement that may occur. When each spring bar on the Steadi-Flex system moves within the bracket, it rubs along the surface of the bracket, creating friction. This resistance limits the movement of the spring bar, thus preventing further side-to-side movement of the trailer.


Most systems with sway control brackets use bare steel brackets to create friction with the steel bars. Steel-on-steel friction typically causes a much louder ride, and it can result in wear and tear on the brackets themselves. The Steadi-Flex brackets, on the other hand, are lined with automotive-grade friction material. This material is more abrasive than bare steel, which allows more friction to build up faster and easier. The long-lasting friction material also reduces the banging noise created by the bars hitting the inside of the steel brackets. This provides a quieter ride while towing.


Fast, Easy Installation

The Steadi-Flex system is easy to install and set up. On the trailer side, simply clamp the spring bar brackets around your trailer's frame. Then prepare your vehicle by sliding the included shank into your 2" x 2" hitch receiver, and bolt on the head. The system head can be easily adjusted to achieve the proper angle and optimum leverage for your specific setup. No drilling is required to install this weight distribution system.


Head Tilt Adjustment

The Steadi-Flex system uses the traditional washer-style adjustment method to achieve the perfect tilt. Controlling the head tilt helps you to fine-tune the leverage and maximize the amount of tension in the whole system. To adjust the tilt, simply slide washers onto the adjustment pin and insert the pin into the head assembly. To increase the angle, add a washer. To reduce the angle, remove a washer.


Tapered Spring Bars

Spring Bars

The spring bars of the Steadi-Flex system slide into the weight distribution head for quick, easy installation. With a tapered design and hot rolled steel construction, these bars offer superior flex to evenly distribute the weight between your tow vehicle and your trailer.


The bars easily pin into place inside the system head - no need to torque or re-torque any trunnion bolts to adjust the tension. With fewer parts to manage, installing and maintaining the Steadi-Flex is simple.


Adjustable, Clamp-On Brackets

Adjustable Brackets

The spring bar brackets simply clamp around your trailer's frame - no drilling required. These brackets are designed to be positioned 27" to 32" back from your coupler and they can fit a wide range of frame sizes and can even be used on a trailer with a bottom-mounted coupler.


While other brackets use relatively thin L-pins to secure the spring bars in place on the brackets, the Steadi-Flex system uses steel pieces that are almost as wide as the brackets themselves to secure the bars. These retention brackets easily pin into place once wrapped around the spring bars. As a result, you can have greater piece of mind knowing that the spring bars are secure and less likely to rattle around inside of the brackets.



66558 Reese Steady Flex Light Duty Weight Distribution System with Sway Control - 6,000 lbs GTW, 600 lbs TW

Installation Details RP66558 Installation instructions


California residents: click here



Customer Reviews

Reese Steadi-Flex Weight Distribution System w/ Sway Control - Trunnion - 6K GTW, 600 TW - RP66558

Average Customer Rating:  4.7 out of 5 stars   (200 Customer Reviews)

Friction in brackets and in head works to prevent and correct trailer sway. Chainless brackets with automotive-style friction pads hold spring bars firmly in place to help keep trailer in line with your tow vehicle. Adjustable shank included.

- RP66558
by:

I've towed a few thousand miles with this hitch on my Astro Van (properly equipped) pulling a 15ft open deck car trailer(~4000lb loaded with 450lb TW). I have been very happy with this purchase. The anti-sway system on the WDH works very well even with my smallish tow vehicle. No issues when towing in crummy weather with strong winds and driving rain, the hitch handled wonderfully. The sway control is fairly quiet when making sharp turns or backing up. Great product!



- RP66558
by:

Working well for my Boat Trailer with surge brakes. I'm happy I went with this 600/6000 LBS version instead of maxing out the 400/4000 LBS version on my 380/3700 LBS rig. I'm now towing legal again since down-sizing my tow vehicle to a 2015 Ford Flex, AWD, V6 EcoBoost, Even with the factory tow package the Flex is only rated for 200/2000 without WDS, but 450/4500 with WDS. I did a couple trips to my local lake before WDS (30 mile round trip via 45 MPH roads) and the Flex felt safe for that distance/speed, but it had a lot more trailer jolt and was not quite as stable as my old GMC Envoy XL. The WDS has improved the towing stability and ride well beyond my expectations, and is now even better then towing was with buddy's full-size Pickup. I did have to use a Pole-Tongue Adapter (RP58393), and customize the adapter mounting to my trailer, but I can already tell this added hassle and expense will be well worth it for the long-haul trips I do a few times a year.



- RP66558
by:

Very happy with hitch system. Has made a difference in towing our camper. Easy to install, and easy to use for each trip.



- RP66558
by:

WOW! I have a Lance 1995 24 foot trailer that was balanced but swayed above 55 mph. I researched the solution on this site and based on everything suggested I purchased the Reese Steadi-Flex. I formerly had a Husky round bar unit that did not address the issue. The order had a minor delay so I was contacted by etrailer. They gave me options but assured me what I bought was the best. So I waited. Glad I did. I cannot believe the difference. There is absolutely no sway whatsoever with this unit. After a long drive on Hwy 99 I found the speed had crept up to 70! Oops. Still in perfect control. Had I done this before I would have wound up in a ditch! This thing is literally a life saver and I am no longer worried when I have to tow with it. Super cudos for staff at etrailer. You have my business from here on out. Also I want to comment on the complaint about the bars being heavy. Not so. I am sixty eight and recently damaged both thumbs so my lifting is limited. (btw, old guys SHOULD NOT use a jackhammer!) The old round bar Husky was heavy, these straight steel bars are not. Much easier to set this unit up. I will never drive with my trailer again without the Steadi-Flex. Thanks etrailer!



- RP66558
by:

This has been a lifesaver for our Jeep Cherokee (non-Grand) towing a 4k# trailer. Prior to this, towing felt sketchy above 50 and downright unsafe above 70. With this, things feel secure at any speed. Just remember to take the bars off if you're doing any sort of off-roading. I really only have 2 gripes, hence the 4-star review: 1. The pins connecting the trunnions tend to spin a bit while driving, which can result in the cotter pin getting mangled. I had to buy a bolt cutter to remove one once and now carry them and spare cotter pins as a result. I'm very careful to always align the pins with the bars but it doesn't stay that way. It seems they could improve the design. 2. The pins tend to wear with sharp edges, making inserting and removing them very difficulty. I've already had to file the edges down once and expect to have to do it every season or so. Both of these are very manageable, though, and are a small price to pay for the increased safety and comfort while towing.



- RP66558
by:

Still can't figure out how to level the trailer! To undue the spring bars I need to raise the trailer and truck very high! Deciding whether I should just tow on the ball and not use this setup. Not very happy


Comments
Wed be happy to help you get that figured out. Take a look at the set-up video Ive linked for you. If you still have questions after that, please let us know.
-- Etrailer Expert Mike L - 06/10/2019


- RP66558
by:

Was used to tow a 3500lb. travel trailer with YJ Jeep with a 5.3ls engine conversion. Set bars to a very light setting. Trailer tows very nicely. Great product. The braking system for anti-sway is one of best on the market. Replaceable brake pads are the way to go, just like in tow vehicle.



- RP66558
by:

Recommendation by etrailer was perfect. Easy to install Trailer pulls with no sway, wandering Or porpoising. Take the recommendation and go with it. They know what they are doing.


Comments
Great
Chuck C - 03/25/2019



- RP66558
by:

I just bought a new trailer that is 7 feet longer than my last and heavier and I now have a truck instead of an SUV so I needed to get a new weight distribution hinge with sway control. etrailer had all the best brands at the best price and delivery was fast. Unfortunately that's all I can comment on so far. I'm not picking up the new trailer till mid April, so I can't comment on how well it works or show pictures. I'll update later.



- RP66558
by:

Works great. I am able to tow a 3,500 lb travel trailer with a Jeep Wrangler Rubicon. Jeep sits level. No sway from wind or emergency lane changes. Works fine on mild off road trails. Hook up only takes about 8 minutes longer once the process is well known.



- RP66558
by:

Very happy with my purchase, etrailer is a fabulous company to deal with , great installation videos for this item as with all the products I’ve purchased from them over the past few years.



- RP66558
by:

Very happy with product. Was fairly easy to install after watching video. I use mostly for long distance interstate driving. It makes the truck and trailer feel like one unit.



- RP66558
by:

Hitch works great. Sometimes use it without sway bars (for short trips), but noticeably less sway and bobbing with sway bars attached. Used with Ram 1500 and Lance 1995 trailer. After a few trips, one of the friction pads cracked and separated. Etrailer was very helpful getting it replaced quickly. No problems in the subsequent trips.



- RP66558
by:

I searched many different companys on line. I kept going back to Etrailer for many many questions regarding various other hitches and weight issues. They were extremely helpful with all my questions and very patient. Plus once I placed the order I received my order two days early. They are the best in customer service and price. I would differently use them again.



- RP66558
by:

I searched many different companys on line. I kept going back to Etrailer for many many questions regarding various other hitches and weight issues. They were extremely helpful with all my questions and very patient. Plus once I placed the order I received my order two days early. They are the best in customer service and price. I would differently use them again.



- RP66558
by:

Excellent customer service and helpful installation video online. I was disappointed in the quality of the product (not etrailer's fault) due to poorly tapped holes and paint in the holes that made assembly slightly more difficult than should have been required. Just be aware of this so you don't cross thread any bolts and strip out the threads!



- RP66558
by:

quick ship had it in three days expecting hitch to work as intended.



- RP66558
by:

Very helpful, thanks so much!



- RP66558
by:

Great product, easy install. Fast shipping, thanks



- RP66558
by:

Delivered very fast. Great price and great customer service. Will definitely be buying again



- RP66558
by:



- RP66560
by:

Review from a similar Steadi-Flex in Weight Distribution Hitch


Product looks great. However we mistakenly bought too large of a weight distributer and won’t be able to use it. Completely our fault as the website provides plenty of tools to help us locate the correct size (it was a gift for my husband and I had the wrong specs). Only complaint is the boxes and instructions were pretty mangled and some of the parts looked like they had been installed and returned as they were bent. otherwise super fast shipping and everything looks heavy duty and well made. If we had a bigger rv it would be perfect. Our tongue weight is lower (around 550-600) and based on what we read that was going to cause a bouncy stiff ride. We have a Toyota tacoma and a Starcraft autumn ridge 17rd.


Comments
Customer Service will reach out to you. I recommend this system as it is more suited for your needs, but still has the Sway Control feature: item # FA92-00-0800
Fastway e2 Weight Distribution w/ 2-Point Sway Control - Trunnion - 8,000 lbs GTW, 800 lbs TW
$463.69
.
-- Etrailer Expert Sierra K - 01/10/2022


- RP66560
by:

Review from a similar Steadi-Flex in Weight Distribution Hitch


For the most part this has been an easy WD system to live with. I tow a 25' travel trailer with a '12 Ram 1500 and it tracks straight even in strong cross winds. I was also suprised at how turning radius doesn't seem to be affected with it attached. My only complaint is how the covers for the ends of the weight distribution bars are secured. The little pins are placed so far to the end that a small movement in the cover allows them to be completely ineffective at securing the cover. This is important because these covers keep the WD bars from slipping off their resistance pads. Thankfuly so far I haven't had a cover slip or bounce open allowing the bar to release its tension after slipping off the pad. I can't imagine that would end well at highway speeds. I've traveled about 5,000 miles with this hitch and so far so good. Hopefully it stays that way. Lastly if these were designed this way on purpose, it would have been nice to have had a note about it in the manual to ease ones concerns.


Comments
The hitch is still performing well, but the bar covers continue to concern me.
Allen K - 07/23/2018



- RP66559
by:

Review from a similar Steadi-Flex in Weight Distribution Hitch


I LOVE this hitch. Truly transformed my towing experience. I had a Reese distribution hitch before with separate sway bars, but I still had a ton of sway. I read a ton of reviews and this hitch seemed to meet my requirements. I have a F150 with max tow package and I pull a 27 foot travel trailer, about 7800 pounds max capacity. I had never pulled farther than about 100 miles prior to having this hitch, due to the white knuckle swaying. Now I have pulled my camper from Indiana to Panama City Beach, Florida and from Indiana to Gatlinburg, Tennessee. I have almost no sway 98% of the time. If it is still a really windy day, you might get a little, but on a normal day, no sway at all, no semis sucking me into them. Pulls straight as an arrow down the road. Reminds me of when I had a 5th wheel and how great it pulled. I would 100% buy this hitch again and highly recommend it.


Comments
One year later, still LOVE this hitch! I have put almost 4,000 miles on my camper since May 2020 and have been to Florida, Tennessee twice, etc. from Indiana. The hitch is holding up very well given the amount I use it, still love pulling with this hitch as I have almost no sway.
Brian L - 09/09/2021


- RP66560
by:

Review from a similar Steadi-Flex in Weight Distribution Hitch


Well I can’t tell yo what I think because I havnt been able to put it together The box showed up a little bear up but I expected that, but when took out all the parts all I has wAs the head unit for the ball, the sway bars and the two trailer brackets…it was missing ALL the parts to put it together! I’ve been working with customer service however I was miss g so many parts that they needed to email me an Installation manual to inventory what I am missing…I have been working with customer service the past couple of weeks and still no resolution…I have really disappointed so far that’s why I’m leaving a 1 star…will amend once I get the parts and to close this is a matter of urgency because I have to take a cross country trip mid May Thank you


Comments
I will have our Customer Service team reach out to you.
-- Etrailer Expert Jenny N - 03/22/2022

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Ask the Experts about this Reese Weight Distribution Hitch



  • Is Weight Distribution Needed When Towing Trailer With 2007 Mazda CX-9
    I did some research and found that your 2007 Mazda CX-9 is rated for 3,500 lbs towing capacity. We recommend weight distribution when the trailer weight is more than 50 percent of the weight of the vehicle doing the towing. Installing a weight distribution system with sway control will help keep the trailer level and prevent sway when in windy conditions or on winding roads or when big rigs pass you on the highway. To determine if you need a weight distribution system we will need to...
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  • Weight Distribution Suggestions for Trailer Whose Ride Height is 10 Inches Greater Than Trailer Ball
    First, you'll want to identify exactly how much of a rise you'll need for the trailer to be towed level. I've linked you to a help article showing how to measure to determine that. Since the trailer coupler is taller than the receiver on your truck, you'll need a weight distribution shank with a rise. To allow for squat, you'll need a shank whose rise will place the trailer ball about 1-1/2 to 2 inches higher than the coupler height. Once you determine the correct shank height, you'll...
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  • Weight Distribution for Towing Spree Escape Travel Trailer w/ 2004 Jeep Grand Cherokee
    The Reese Steadi-Flex Weight Distribution System you mentioned, part # RP66558 is designed for trailers whose tongue weights range from 400-600 lbs. As long as the fully loaded and ready to tow tongue weight PLUS the weight of anything stowed behind the rear axle of your GC in the cargo area isn't more than 600 lbs, this system would be an excellent choice to provide weight distribution as well as trailer sway control. I'll link you to an article that will show you how to determine the...
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  • How to Determine the Maximum Towing Weight for a 2008 Toyota Highlander
    You will need to check your vehicle owners manual, the drivers side door jamb, and the trailer hitch itself, to determine the maximum towing capacity for your specific vehicle. I did some research on the internet and found that the 2008 Toyota Highlander, is rated for from 2,000 lbs towing up to 5,000 lbs towing if properly equipped for max towing. Actually checking your specific vehicle is the only safe way to determine the maximum capacity. You should be able to select a nicely equipped...
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  • Choosing Weight Disribution System for Casita Travel Trailer Towed by 2008 Chevy Colorado
    When you figure your tongue weight, you find the total of the actual tongue weight of the trailer fully loaded (as towed), and any weight carried behind the rear axle of the tow vehicle. If your tools are stowed in front of the rear axle, their weight would not be considered as tongue weight. From the excellent information that you provided, I recommend the Reese Steadi-Flex Weight Distribution System, item # RP66558. This is a great total system for weight distribution and sway control,...
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  • Can Weight Distribution with Sway Control Be Used on Wet or Icy Roads
    For the Reese Steadi-Flex Weight Distribution # RP66558, that you referenced, you can use it in wet or icy conditions. Typically sway control and wet or icy conditions do not mix well. This is especially true when using independent friction sway control like the single friction bars. Tire traction is lower when the roads are wet or icy and sway control can sometimes only make the problem worse. However, for the Reese system, the overall benefit of the weight distribution to level your...
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  • Weight Distribution Recommendation for 2015 Forest River Wildwood 195BH Xtra Lite
    The best way to pick out a weight distribution system is to base it off of the loaded tongue weight of the setup when it is loaded and ready to tow. This figure also includes the weight of any cargo behind the rear axle of the tow vehicle. I attached a help article on determining tongue weight for you to check out as well. You will want the loaded tongue weight of your setup to fall right in the middle of the tongue weight range of the system you use. The # RP66558 has a tongue weight...
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  • Would Reese Weight Distribution RP66558 Work w 2015 Dodge Durango Trailer 500 lbs TW
    For the tongue weight you listed of 500 lbs the Pro Series system part # RP66558 would be rated properly. You should note that you need to determine tongue weight when the trailer is fully loaded plus consider the weight of any cargo behind the rear axle of the tow vehicle as tongue weight.
    view full answer...
  • Should Tow Vehicle with Weight Distribution System and Travel Trailer be Unhitched When Not Towing
    I recommend unhitching your trailer from your tow vehicle when they are sitting for an extended period of time, like a week as you mentioned. It isn't that leaving the Reese Stead-Flex Weight Distribution System, part # RP66558, hitched will weaken the bars, as the spring bars have a very sturdy construction. However leaving your trailer and tow vehicle hitched together when you are not towing will place unnecessary stress on your vehicle's suspension system. To help preserve your vehicle's...
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  • Distance from Pin Hole to Center of Ball Hole on Reese Light Duty Weight Distribution System
    I spoke with my contact at Reese and he informed me that the dimension you are looking for from the hitch pin hole to the center of the ball hole is 11-3/4 inches. He also mentioned that since the angle of the head changes depending on how it's set up this dimension can vary slightly.
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  • Weight Distribution System Recommendation for a 2014 Nissan Pathfinder Towing Pop Up
    The chain hangers of the part # RP66558 that you referenced can be installed from 25 inches to 32 inches from the center of the ball hole of the coupler. This is a pretty wide range so you SHOULD be able to mount this kit and have it not interfere with your jack. Based on the tongue weight that you listed for your trailer this system should work well for you.
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  • Will the Decreased Trailer Tongue Weight Caused By Using Weight Distribution Cause Problems
    You'd choose the system based on the total tongue weight, wherever it might be before using a system. The idea of using a weight distribution system is to transfer a portion of the trailer's tongue weight to the front axle of the tow vehicle, thus evening out the ride height between the front and rear vehicle axles. Having the tow vehicle squatting because of the tongue weight applied to the rear of the vehicle can be harmful in many ways. The rear-end squat takes your headlights out of...
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  • Recommended Weight Distribution System for 3,000 Pound Trailer with 400 Pound Tongue Weight
    The weight distribution system I recommend for your trailer is the Reese Steadi-Flex, part # RP66558. This system is rated for trailer with gross towing weights up to 6,000 pounds that have tongue weights between 200-600 pounds. Your trailer's 400 pound tongue weight falls nicely in this range. The Reese system uses automotive-quality friction material on the bracket hangers to work with the trunnion-style spring bars to create a friction sway control that works to stop trailer sway as...
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  • Troubleshooting a Camper Trailer that Sways and Bounces above 60 MPH
    What's going to help the most for the sway and bouncing you are experiencing is to have the trailer sitting as level as possible while it is being towed and having as much of the weight of the cargo in your trailer moved to the front of the trailer as possible. Check out the FAQ article I attached on picking out a ball mount for the amount of rise/drop that is needed. The best way to pick out a weight distribution system is to base it off of the loaded tongue weight of the setup when it...
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  • What is the Towing Capacity for a 2007 Chevy Suburban 1500 LTZ 4×4 5.3 Liter
    First, the trailer should have a sticker or plate on the front of the frame or tongue somewhere that lists its capacity. that is the capacity you will need to go by for the trailer. You are likely correct that it will a capacity over 10,000 pounds but you will still want to be sure. I checked the owners manual for the 2007 Chevy Suburban 5.3 liter. For a 1500 4x4 with 3.73 rear end the maximum capacity is 6,700 pounds. With 4.10 rear end it is 7,700 pounds. For an extended model with...
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  • Do Adjustments Need to be Made to Weight Distribution System if Truck Rides Too High in the Front
    If you are using a weight distribution system like the Reese Steadi-Flex, part # RP66558, and the front end of your truck is too high, it sounds like you may be using a system that isn't rated high enough for the tongue weight of your trailer. I recommend that you start by determining the tongue weight of your trailer (I am including an article on this) and compare this to the weight rating of the system. If the tongue weight exceeds the rating, I would try removing some of your cargo...
    view full answer...
  • Hitch Pin Hole Center to Gusset Measurement on Shank in Steadi-Flex RP66558
    I see that you referenced quite a few weight distribution systems including the Reese Steadi-Flex kit # RP66558. For this kit's included shank the distance from the center of the hitch pin hole on the shank to the near edge of the two welded gussets is 4-3/4-inches according to my contact at Reese. Just to be absolutely sure I went to our warehouse and measured the shank myself. It is indeed 4-3/4-inches from the center of the hitch pin hole to the edges of the gussets. This dimension...
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  • Should Friction Pads Be Lubricated on Reese Steadi-Flex Weight Distribution System
    You do not need to lubricate the pads for your Reese Steadi-Flex Weight Distribution System # RP66558. Standard lubrication products can actually cause more of an issue since they leave residue behind. If the pads look too dry you can use some brake cleaner since that won't leave any residue but will do a nice job of dissolving grime/debris.
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  • Troubleshooting Performance of Weight Distribution System
    A weight distribution kit that's rated for a maximum 10K trailer weight/ 1000K tongue weight could very well be okay for your trailer, unless it weighs quite a bit less than the Gross trailer weights you mentioned. If your w/d system is considerably underrated for the actual rate of your trailer, it would ride pretty rough. I'd recommend taking a little time to verify the actual as-towed weight of your trailer, then go on from there. You mention that the system you have wasn't set up...
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  • Is There a Maximum Distance L-Brackets Can Extend With Reese Steadi-Flex Weight Distribution RP66558
    The Reese Steadi-Flex Weight Distribution System # RP66558 needs a minimum of three inches of spring bar extending past the L-bracket like you said, but there is no maximum; your distance is perfectly fine. As for the space below the L-bracket, this should be the done with the spring bars hanging freely.
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  • Can a Reese Steadi-Flex Weight Distribution System be Attached to a 6,000 lb Kingfisher Boat Trailer
    Yes, you can attach a weight distribution system on a boat trailer with a pole tongue. You will need to use a pole tongue adapter like part # RP58393, on the trailer tongue to attach the spring bar hangers to. Once you have the pole tongue adapter and spring bar hangers installed you will set up the SC Weight Distribution System, # RP66558, just like you would on an A-Frame trailer. If your trailer has surge breaks, this system is compatible with the surge brake actuator coupler. I attached...
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  • Weight Distribution System Recommendation for a Camper with 610 lbs of Tongue Weight
    You will want to go with a higher capacity weight distribution system. For a system to be effective you want the tongue weight of the trailer to fall right into the middle of the tongue weight range of the system. Your 610 lbs of tongue weight is more than the 600 lb limit of your RP66558 so you would need to upgrade. For that I would recommend the Straitline part # RP66083 as it has a tongue weight range of 400 to 800 lbs and features the only sway control on the market that is designed...
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  • Recommended Weight Distribution Setup for a 2010 Toyota Tacoma Towing a 1966 Aristocrat Trailer
    To choose a properly tuned weight distribution system for your trailer you will need to go by the total effective tongue weight of the set up. This is calculated by taking the measured tongue weight of the trailer, when loaded and ready to tow, and adding to that the weight of anything loaded behind the rear axle of the tow vehicle. Each system will have an operating range, and if your tongue weight is 350 pounds, go with the Reese Steadi-Flex weight distribution system with sway control...
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  • Recommended Weight Distribution/Sway Control Hitch for 2022 GeoPro G19FBS?
    You'd choose the correct weight distribution/sway control system based on the fully loaded and ready to tow tongue weight of your 2022 Rockwood GeoPro which would range from about 450 to 650 lbs. I'll link to a help article that explains how to determine this, but it's just about certain that your loaded tongue weight would be below 800 lbs. If you determine that the as-towed tongue weight is between 500-1000 lbs, I'd recommend the Reese Steadi-Flex, part # RP66559. The 2-5/16 inch trailer...
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