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Reese Steadi-Flex Weight Distribution System w/ Sway Control - Trunnion - 12K GTW, 1.2K TW
Reese

Reese Steadi-Flex Weight Distribution System w/ Sway Control - Trunnion - 12K GTW, 1.2K TW

Part Number: RP66560
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$769.80
Retail:$1,079.93
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Weight Distribution Hitch
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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. Great Prices for the best weight distribution hitch from Reese. Reese Steadi-Flex Weight Distribution System w/ Sway Control - Trunnion - 12K GTW, 1.2K TW part number RP66560 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Reese Weight Distribution Hitch - RP66560

  • 1000 lbs
  • 1100 lbs
  • 700 lbs
  • 800 lbs
  • 900 lbs
  • Fits 2 Inch Hitch
  • WD With Sway Control
  • Allows Backing Up
  • Reese
  • Includes Shank
  • Some Sway
  • Electric Brake Compatible
  • Surge Brake Compatible

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 tilt is easily achieved using preset positions on system head - no more piling on washer after washer
  • 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
  • Corrosion-resistant powder coat is long-lasting
  • 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 1-1/4" diameter shank


Specs:

  • Tongue weight: 600 lbs - 1,200 lbs
  • Gross towing weight: 12,000 lbs
  • Fits: 2" x 2" trailer hitch receivers rated for use with weight distribution systems
  • Maximum trailer frame height: 6"
  • Sway control bracket positioning: 27" - 32" back from center of coupler
  • Shank length:
    • 8-3/4" From center of hitch pin hole to center of adjustment holes
    • 9-3/4" From center of hitch pin hole to front of shank
    • 8" From center of hitch pin hole to back of shank
    • 13" Overall
  • Total height adjustment along shank: 8-3/4"
    • Maximum rise: 8-3/4"
    • Maximum drop: 4"
    • Overall height: 10"
    • 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/ 1-1/4" 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.


Friction Material

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

Head Adjustment

The head of the Steadi-Flex can be easily adjusted for the best possible angle for your towing setup. Adjusting the head lets you fine-tune the system's leverage so that you can get the best distribution of weight possible. Traditional head tilt adjustment methods require that the head be disassembled so that stackable washers inside the head can be either removed or added on. But with the Steadi-Flex, there are external, toothed washers on either side of the head that make it easy to change the tilt. Simply position the head in one of the preset angles based on your hitch's tongue weight, then bolt it in place, tightening the washers as you do so. Once the head is sitting at the correct angle, tighten the internal adjustment bolt to secure the platform in place.


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

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.


Adjustable Brackets

While other brackets use L-pins to secure the spring bars in place on the brackets, the hinged Steadi-Flex brackets close completely around the spring bars. As a result, you can have greater piece of mind knowing that the spring bars are secure, all without the hassle of using and possibly losing L-pins and any extra hardware.



66560 Reese Steady Flex Heavy Duty Weight Distribution System with Sway Control - 12,000 lbs GTW, 1,200 lbs TW

Installation Details RP66560 Installation instructions


California residents: click here


Customer Satisfaction Score:


Customer Reviews

Reese Steadi-Flex Weight Distribution System w/ Sway Control - Trunnion - 12K GTW, 1.2K TW - RP66560

Average Customer Rating:  4.7 out of 5 stars   (231 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.

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Just as I expected.



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Delivered 2 days early. Good package.



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Arrived in excellent shape. Quality pro duct



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Awesome product variety and great communication! Will shop here again



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Delivered on time and quality seems good. Thank you



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good costumer support



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



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works great!!!love it



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Great product, easy install. Fast shipping, thanks



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Product looks great, box was all torn up but is was all there. Ups delivered it two doors down?? But I got it! Thanks for your great customer service



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Easy to install. Works great and quieter then my old one



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Works fine - relatively easy install



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Setup was as expected. Easy to hook up and definitely helps with sway.



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I am very pleased with the quality. I was helped making my selection by Lisa D. she was very knowledgeable and helped me get a far superior product from what I had initially selected. Thank you Lisa D ??



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Pleased with product. Distributes weight and controls sway well. Simple to connect once setup



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Show More Reviews

See what our Experts say about this Reese Weight Distribution Hitch

  • Hitch Extender Recommendation Towing 7,500 lb Trailer
    If you use the Reese Elite hitch extender part # RP45292 in your 2-1/2 inch hitch at the 24 inch length with a weight distribution system you'd have an 8,000 lb capacity. That would be the only way to get an extension with the needed capacity. For a properly rated weight distribution system then you'd need the Reese Steadi-Flex kit part # RP66560 which has integrated sway control and you'd be set.
    view full answer...
  • Is It Okay To Use the Reese 12K Steadi-Flex On a Trailer Under 12K
    Yes, you can use a weight distribution system that is overrated for the trailer you intend to use it with. However, the best performance will come from a system that matches the total tongue weight of your towing setup. In order to find the total tongue weight of your towing setup you will need to calculate the loaded ready to tow tongue weight of the trailer plus the weight of any cargo stored behind the rear axle of the tow vehicle. The Reese Steadi-Flex Weight Distribution System part...
    view full answer...
  • How to Select Correct Weight Distribution/Sway Control System
    Weight distribution/sway control (WD/SC) systems need to be tuned to your trailer tongue weight in order to work properly. A system rated too low for your actual tongue weight (TW) will not have the stiffness needed to shift trailer TW forward to the vehicle's front axle - what it is intended to do - and one rated too high will be too stiff and cause the trailer to exhibit weird handling. Ideally the total TW, which is the combination of the loaded trailer's measured TW plus that of any...
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  • Best Weight Distribution System for 2012 Ram 1500 5.7L Hemi W/4 Lift and 7,500 lb Travel Trailer
    You will be okay with a 7,500 lb travel trailer with an appropriate weight distribution system based on the numbers you gave. Because you don't know what trailer you will be getting yet, the Reese Steadi-Flex Weight Distribution System w/ Sway Control # RP66560 is a great option because the total tongue weight range of this system is 600 to 1200 lbs which is a broader range than most. The total tongue weight is the loaded trailer tongue weight along with any cargo behind the rear axle...
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  • Recommended Weight Distribution System for 7,500 Pound Boat Trailer with Surge Brakes
    A weight distribution system is typically needed whenever the weight of the trailer is more than 50 percent of the vehicle's weight (GVWR). Considering the 7,500 pound loaded weight of your trailer, I do recommend adding a weight distribution system. Your 2017 Tahoe weighs around 5,500 pounds. Additional indications that point to a need for a weight distribution system include sag on the rear of your truck when the trailer is hooked up, experiencing trailer sway, and difficulty steering...
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  • Weight Distribution System Recommendation for Trailer With Dry Tongue Weight of 788 lbs
    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. Based on your dry tongue weight being...
    view full answer...
  • Recommended Weight Distribution System for 5,000 lb Travel Trailer and 2020 Jeep Grand Cherokee
    For your 2020 Jeep Grand Cherokee, I recommend the Reese Steadi-Flex Weight Distribution System w/ Sway Control - Trunnion - 12K GTW, 1.2K TW # RP66560. This system is rated for total tongue weight between 600 and 1200 lbs. That total tongue weight is the loaded tongue weight of the trailer as well as any cargo behind the rear axle of your Jeep. This will help not only disperse weight but also help control trailer sway. You will also need either the 2" Hitch Ball - 1-1/4" Diameter...
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  • Weight Distribution Hitch for 2019 Ram 1500 Towing 33-Foot Travel Trailer
    You will definitely gain handling benefits from using a properly-rated and correctly-installed weight distribution/sway control hitch when towing your 33-foot travel trailer with your Ram 1500. Your loaded TW is going to be right around 1000-lbs so good systems that match are the Equalizer # EQ37120ET and the Reese Steadi-Flex # RP66560 that both work for 800 to 1200-lbs tongue weight (TW). Just add an appropriate size hitch ball to complete these systems, either # A-90 (2-inch) or #...
    view full answer...
  • Which Weight Distribution for a 26 Ft. Travel Trailer Behind a 2005 Ford Expedition
    The 2005 Ford Expedition should have a 2 inch hitch installed from the factory. 5,000 pounds is a little low for a gross trailer weight on a 26 foot travel trailer. Dual-cam sway control will perform better than friction sway control systems, especially with heavier loads. If you can write back with the gross weight of the trailer when loaded, or the tongue weight of the trailer when loaded and level, I can make more specific recommendations about which weight distribution system would...
    view full answer...
  • Recommendation on a Weight Distribution System for a 28 Foot Airstream Trailer and 2017 Ford F-250
    When trying to decide on a proper weight distribution (WD) system for your towing rig, you will need to know the total tongue weight (TTW) of your set-up. The total tongue weight will be a fully loaded ready to tow trailer, plus any weight located behind the rear axle of your tow vehicle. You want to use a system where your total tongue weight will fall in between the WD system's tongue weight range. I have attached an article that will explain how to find the TTW of your towing rig. Once...
    view full answer...
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  • Replacement Options for Discontinued Pro Series Weight Distribution System
    I would be happy to recommend a replacement for your Pro Series Weight Distribution Hitch. You are correct, those replacement bars are no longer available since this hitch was discontinued by Reese. Spring bars from other systems are also not compatible with this WDH meaning the only option is total replacement. Sticking with Reese, I recommend the Reese Steadi-Flex Weight Distribution System w/ Sway Control - Trunnion - 12K GTW, 1.2K TW # RP66560. This has a tongue weight range of 600-1,200...
    view full answer...
  • Availability Of Reese Lift Tool 58351 And Potential Substitutes
    Hey Jeremy, unfortunately the Reese 58351 lift tool is no longer available by itself. We used to carry them, but we sold our last one back in 2019. We do have some other similar lift tools available which may be suitable substitutes. The link below will show you our full selection of lift tools. They are all designed a bit differently than the Reese, but I suggest either the Curt lift tool # C17512 or the Blue Ox # BLU73FR. They may not be designed exactly the same, but they are designed...
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  • What Weight Distribution and Sway Control System Can I use on Trailer with Undermount Coupler
    The Reese High Performance SC Weight distribution will not work with an under mount coupler, especially with a 6 inch tall frame. You need to use a chain style weight distribution system to compensate for the height. Chain style WD systems utilize Dual Cam sway control which is also a better system for controlling sway. At the same weight range as the 66155 you referenced, you could use Reese Strait-Line Trunnion System, part # RP66084. We also have heavier duty and lighter duty systems....
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  • Recommended Weight Distribution System for Both Dump Trailer and Travel Trailer Applications
    For your weight distribution system, I recommend the Blue Ox SwayPro Weight Distribution w/ Sway Control - Clamp On - 15,000 lbs GTW, 1,500 lbs TW # BXW1500 with hitch ball # 19286 for your 10K dump trailer and then you will simply need different spring bars for your travel trailer. I recommend the Replacement Spring Bars for Blue Ox SwayPro Weight Distribution System # BXW4007 for that application. All of the other components of the system will work fine with both applications. These...
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  • Weight Distribution System Recommendation for 6,500 lb Trailer with 8 inch Tall Frame Channels
    Since your frame channels are taller than 6 inches you'd need to use a weight distribution system like the Reese # RP66542 that has frame clamps that attach to the top of the frame and does not need to attach around the entire frame channel. This also won't damage the paint of your trailer frame and has a tongue weight range that would work well with a trailer that weighs between 6,000 and 6,500 lbs.
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  • Recommended Suspension Enhancement and Weight Distribution System for 2016 Ford F-150
    The air springs I recommend for your 2016 Ford F-150 are the Firestone Ride-Rite Air Helper Springs # F2582. These are a confirmed fit for your truck so long as you do not have an in-bed hitch. The Ride-Rite springs are going to enhance your F-150's factory suspension and give you a smoother, more cushioned ride. I've attached a link to a video review of these air springs, as well as a link to a video showing them being installed on a '16 Ford F-150. For weight distribution I recommend...
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    Image 1 for
  • Recommended Weight Distribution System, Solenoid and Power Inverter for Auxiliary Battery
    For your auxiliary battery in your Ford truck, I recommend using the Battery Isolation Solenoid # PK5231201. This will make sure your auxiliary battery does not drain your vehicle starter battery to ensure you will always be able to start your vehicle even if your trailer battery and auxiliary truck battery are drained. This will allow you to maintenance charge your auxiliary battery from your alternator when the vehicle ignition is turned on, but not when it is turned off. You won't...
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  • Weight Distribution and Sway Control for a 2004 Nissan Titan and 7,800 Pound Trailer
    On some trucks, specifically 1/2 ton trucks, there can still be sag even when using weight distribution. But there are ways to combat that. First though let's get you set up with a new weight distribution system. To choose a weight distribution system you will need to go by the total tongue weight of the set up. This is calculated by taking the 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. If...
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  • Fastway e2 or Reese Steadi-Flex Weight Distribution Hitch For 8,500 lb Travel Trailer
    Between the Reese Steadi-Flex and Fastway e2, I recommend the Fastway. They will work very similar with the amounts of sway control they provide, but I like the Fastway better because it is the best overall value, including relative to the Steadi-Flex. That said, the one thing I wanted to mention is the 10,000 lb towing/1,000 lb tongue weight option won't be rated high enough, because tongue weight is around 12 - 15 percent of the GVWR. So instead, go with the 12,000 lb towing/1,200 lb...
    view full answer...
  • Is the Reese Steadi-Flex Compatible with an Underslung Trailer Coupler
    Yes it can! If you check out the attached picture from the installation instructions for the Reese Steadi-Flex # RP66560 you referenced you can see that it is compatible with underslung couplers. You simply need to install the adjustable frame bracket so that the mounting bolt is fastened to one bolt hole below the bottom bolt on the frame bracket. Please note that the hitch ball is sold separately for this weight distribution system. For this application I recommend the Curt 2-5/16" diameter...
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    Image 1 for
  • Recommended Shank Replacement for Reese Steadi-Flex System with 2-1/2 Inch Hitch Receiver
    The shank on the Reese Steadi-Flex Weight Distribution System w/ Sway Control - Trunnion - 12K GTW, 1.2K TW # RP66560 requires a flat front for the head adjustment so the Reese # RP54977 will not work. You can alternatively use the Curt Weight Distribution Shank for 2-1/2" Hitches # C17132 or # C17131 for compatibility.
    view full answer...
  • Weight Distribution Recommendations for a 1991 GMC K1500 Z71 Towing 24-30ft Enclosed 10k Trailer
    Air bags or suspension enhancement products are primarily designed to help suspend a load carried in the cargo area or bed of a truck, while weight distribution is designed to eliminate sag caused by trailer tongue weight applied to the rear of the tow vehicle. In order to choose the correct weight distribution for your needs, you will first need to determine the fully loaded and ready to tow tongue weight of your trailer. To this figure, you will need to add the weight of anything you...
    view full answer...
  • Is there a Downside to Using Over-Capacity Weight Distribution System on 7000 lb Trailer?
    The Reese Steadi-Flex Weight Distribution System w/ Sway Control - Trunnion - 10K GTW, 1K TW # RP66559 is rated for a total tongue range between 500 and 1,000 lbs. That total tongue weight is the loaded tongue weight of the trailer plus any cargo behind the rear axle. Based on the information you gave, I recommend going with # RP66560 which is rated for total tongue weights between 600 and 1200 lbs. This ensures you will be within the range without going over. Ideally you want to...
    view full answer...
  • How to Select Proper Weight Distribution/Sway Control System for 2009 Silverado
    The weight distribution systems that use a friction bar for sway control, like # PS49583 with # 83660 from Pro Series, do not allow you to back up your trailer without first disconnecting the bar. If left in place when reversing the trailer this mechanism would suffer damage. The systems like the Equal-i-zer 4-Point Sway Control # EQ37140ET and the Reese Steadi-Flex # RP66560, which use an integrated anti-sway system that does not rely on a separate friction bar, do not have this limitation...
    view full answer...


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