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  1. Weight Distribution Hitch
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Strait-Line Weight Distribution System w/ Sway Control - Trunnion Bar - 12,000 lbs GTW, 1,200 lbs TW
Reese

Strait-Line Weight Distribution System w/ Sway Control - Trunnion Bar - 12,000 lbs GTW, 1,200 lbs TW

Part Number: RP66084
In Stock
$1,154.04
Weight Distribution Hitch
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Featuring dual-cam sway control, this weight-distribution system includes an adjustable shank and flexible, powder coated steel, trunnion spring bars to create a level ride for both your trailer and your tow vehicle. Fits 2" trailer hitches. Great Prices for the best weight distribution hitch from Reese. Strait-Line Weight Distribution System w/ Sway Control - Trunnion Bar - 12,000 lbs GTW, 1,200 lbs TW part number RP66084 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Reese Weight Distribution Hitch - RP66084

  • 1000 lbs
  • 1100 lbs
  • 700 lbs
  • 800 lbs
  • 900 lbs
  • Fits 2 Inch Hitch
  • WD With Sway Control
  • Allows Backing Up
  • Reese
  • Includes Shank
  • Trunnion Bar
  • Top-Mount
  • Fits 3 Inch Frame
  • Fits 4 Inch Frame
  • Fits 5 Inch Frame

Featuring dual-cam sway control, this weight-distribution system includes an adjustable shank and flexible, powder coated steel, trunnion spring bars to create a level ride for both your trailer and your tow vehicle. Fits 2" trailer hitches.


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
  • Automatically self-adjusting, self-centering sway control works in a variety of situations
    • Straight-line movement - cams lock in position to hold trailer steady despite crosswinds
    • Cornering - cams automatically unlock and slide to allow full-radius turns
    • Sudden swerving - cams seek a straight-line angle to help stabilize trailer
  • Sway control bolts onto A-frame trailer tongue and attaches to lift brackets via chains
    • No U-bolts or platforms to interfere with frame-mounted items such as gas tanks, toolboxes or generators
  • Trunnion spring bars are hot rolled and tapered for superior strength and flexibility
    • Bars flex appropriately over uneven terrain for a controlled, even ride
    • Sway-control cams provide attachment point for spring bars
  • Head assembly and adjustable shank included
    • Forged, raised ball platform eliminates need for raised hitch ball
    • Solid steel shank is powder coated for rust protection
  • Adjustable spring-bar tension - just switch links in lift chains to fine-tune
  • Desired tilt is easily achieved with serrated-washer design - no more piling on washer after washer
  • System includes sway-control cams, head assembly, adjustable shank, lift brackets, spring bars, lift chains, 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
  • Lift-bracket positioning: mount about 30" back from hitch ball
    • Requires approximately 5-1/2" of space along trailer frame
      • Optional mounts (sold separately) that take up less space on trailer frame are available
    • Will not fit trailer frames wider than 2-1/2"
  • Shank length: 14" from center of hitch pin hole to center of ball hole
  • Total height adjustment along shank: 5-1/4"
    • Maximum rise: 6-1/2" from top of hitch receiver opening
    • Maximum drop: 1-1/4" from top of hitch receiver opening
  • Limited lifetime warranty


Included w/ RP66084Required - Sold SeparatelyOptional Add-Ons
  • Adjustable Shank
  • System Head
  • Sway-Control Cams
  • Spring Bars
  • Hitch Ball w/ 1-1/4" Diameter Shank
n/a

Note: Dual-cam sway control cannot be used with surge-type trailer brakes and is designed for Class III and Class IV hitches only. Should not be used with aluminum trailer frames.


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.


Serrated Washer System

Unique Features of Reese Strait-Line Weight Distribution

The easy-to-use, serrated washers on the Reese Strait-Line system make adjusting the tilt of the weight-distribution head a snap. This is a huge improvement over the standard pin-and-washer method, which involves piling washers - one on top of another - onto a difficult-to-access pin. The serrated-washer system lets you easily loosen, adjust and tighten a single washer and nut on either side of the head for simple, secure positioning.



The trunnion spring bars of the Strait-Line 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, ensuring a smooth, controlled ride for both your tow vehicle and your trailer. These specially designed bars have rounded, hooked ends, making them the only kind of spring bars that can function with Reese's active-style, dual-cam sway control.


Weight Distributing Hitch

Dual-Cam Sway Control

Reese's dual-cam sway-control system stops trailer sway before it begins. This is a significant improvement over traditional friction-style controls, which help to correct sway only after it has already begun. This specially designed system uses unique sliding devices called "cams" to suspend the spring bars of your weight-distribution system. One end of a cam bolts onto your trailer's frame, and the other end attaches to the lift bracket via the lift chain. The rounded, hooked ends of the spring bars then sit in these cams. The controlled placement of the spring bars keeps your system secure while still allowing enough movement for free, easy interaction between your trailer and your tow vehicle.



Dual-Cam Sway Control Turning

During basic, straight-line towing, the cams lock in place and hold the trailer steady by applying constant, consistent pressure to both sides. This keeps the trailer from swaying in crosswinds. When you go into a turn, the cams unlock and slide to allow a controlled, full-radius maneuver. If you swerve suddenly, the cams will give to accommodate the movement while still working to obtain a straight angle, thereby maintaining control of the trailer.




66542 and 26002 Reese Strait-Line Trunnion Bar Weight Distribution Hitch with Hitch Bar

Installation Details RP66084 Installation instructions


California residents: click here


Ratings & Reviews

4.7

172 reviews
Featuring dual-cam sway control, this weight-distribution system includes an adjustable shank and flexible, powder coated steel, trunnion spring bars to create a level ride for both your trailer and your tow vehicle. Fits 2" trailer hitches.

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Very good no problems



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All was great! No issues



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product was shipped very fast and was as described, will definitely be doing business with this company again in the future!!!



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Working great



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Works great



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Still working like a charm!



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Great product. Fast Shipping. Night and day difference from my previous trunnion bar friction style hitch.



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The delivery was very quick and on time. It took about three hours to install. Once installed works very well.



by:

Just returned from a 4400 mile trip pulling our travel trailer and it drove so nice! Almost zero sway and I installed it myself…



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I think the setup is great. The installation was a little tricky since I’ve never installed anything like it before, but there are plenty of installation videos out there to watch first (and to reference during install). When I’m towing I sometimes forget my 30’ camper is back there. As far as sway, I have get to be effected by any. I would recommend this hitch and I would buy it again if needed.



by:

Already have this product on a heavy trailer . Works great . Drove all day in 50 mph wind gust and was able to keep it straight.



by:

we love it what a difference it made while towing our camper!!



by:

I told them the year of my truck the reciver was to short they said buy another after I spent 700 plus I don’t think so



by:

Great knowledgeable sales service from Paula, and SUPER FAST shipping!!
I haven't installed it yet, but should go just fine.


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Show More Reviews

See what our Experts say about this Reese Weight Distribution Hitch

  • Is It Okay to Back Up With a Weight Distribution System That Uses Torsion Bars
    The only Weight Distribution (WD) systems that we have listed on our site that you shouldn't back up with incorporate the use of a friction sway control like the Reese # 83660. You can backup, but the friction sway control must first be disconnected otherwise you will damage it. If your system is just using trunnion bars, like the Reese Strait-Line # RP66084 does, then you should not have to worry about it. In this case it would be best to check with the manufacturer to see what they...
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  • Weight Distribution Recommendation for 6,000 lb Camper Trailer
    You'd be fine to have a weight distribution installed on your trailer as you travel on the hill you described. If anything it might help prevent the trailer from leaning excessively. For a 6,000 lb trailer you'd be looking at a tongue weight most likely of 600 to 900 lbs so the weight distribution with sway control that I would recommend is the Strait Line part # RP66084 which has a tongue weight range of 600-1,200 lbs and features only sway control designed to fight sway before it starts. For...
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  • Can Curt Spring Bars Be Used With A Reese Weight Distribution Hitch Head
    No, most weight distribution hitch heads have specific spring bar fitments so they're typically not interchangeable. You would want to find the specific model of your Reese weight distribution hitch and determine the proper spring bar capacity for it in order to use the system. Some systems will allow you to use multiple capacity spring bars within their model, while others require specific spring bars for each weight capacity. For example, if you had the Reese Strait-Line # RP66084 you...
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  • Weight Distribution System Recommendation for a Rockwood Mini Lite 23.7 Trailer
    Your best option is going to be the Reese Strait Line part # RP66084 as it has a tongue weight range of 600-1,200 lbs which would be perfect for your tongue weight of 725 lbs. The sway control on this system is the only style on the market that actively works to prevent sway before it starts. The other very popular option is the Equalizer WD system part # EQ37101ET which would also work great with 725 lbs of tongue weight but instead uses 4 point of friction for sway control. Some people...
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  • Should Weight Distribution Hitch Be Used With 2019 Ram 1500 Laramie Towing Forest River Vibe 28RB
    According to the 2019 Ram 1500 towing chart, a weight distribution hitch is recommended for trailers over 5,000 lbs. Based on that information, I would say you should use a WDH and not just a regular ball mount. I'm not entirely sure which trailer you have without the year, and I was unable to find the 28RK so I will use the 28RL. The 28RL has a an unloaded weight of 7,096 lbs with a dry tongue weight of 821 lbs. The GVWR is 9,621 lbs so you're looking at roughly 1,100 lbs of tongue weight....
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  • Reese Weight Distribution System Recommendation for 1,050 lbs of Tongue Weight
    If your loaded tongue weight is 1,050 lbs then the Reese Weight Distribution system part # RP66542 would work well as it has a tongue weight range of 600-1,200 lbs which would work well for you. The only setup that would be better would be the Strait Line part # RP66084 as it has the same tongue weight range but has a sway control system that stops sway before it starts. For a 2 inch ball you would want part # A-90 and for a 2-5/16 inch ball # 19286.
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  • Which Weight Distribution Hitch for a 2007 Ford F-150 Towing a 7,000 Pound 31 Foot Travel Trailer
    With length of 31 feet I would highly suggest using a weight distribution system with a Dual-Cam sway control system. Calculating 10-15 percent of the trailer weight gives you an approximate tongue weight range of 700-1,050 pounds. The best fit then for a weight distribution with dual cam sway control would be Reese Trunnion Bar Strait-Line System, part # RP66084. This system is a great fit for your trailer weight and the Dual-Cam Sway control will really help to keep the 31 foot trailer...
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  • Installation Instructions for the Blue Ox SwayPro Weight Distribution # BXW1000
    Since the instructions for the Blue Ox SwayPro Weight Distribution # BXW1000 state that any air-ride shock absorbers, air springs, or automatic leveling systems need to be disabled or deflated to the manufacturer's minimum recommended pressure prior to installing the system, you will need to leave it in that state while using the Blue Ox system. If you were to inflate them after installing the WD system then they would be working against each other. If you would rather retain the use of...
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  • Parts Needed to Complete Towing Package on 2020 Land Rover Defender D110 with Factory Towing
    Unfortunately we do not have towing components like a hitch or wiring that have been confirmed to fit on the 2020 Land Rover Defender yet, but if your vehicle came with the towing package included you should already have a hitch and wiring present though. If you actually just need a ball mount and hitch ball that fit into the receiver, then it looks like the D110 comes with a 2" receiver. For that I recommend starting with something like the Curt # C45230, which can be used for trailers...
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  • Why Should Suspension Auto Level be Done Before Setting Up Weight Distribution
    I can see how either way would "in theory" work well, but what we've gotten from our weight distribution manufacturers is that you let it auto level first and then set the system up so that the WD's spring bar tension is accurate for how the vehicle's suspension configuration and not be too severe. Otherwise if you do the auto-level after the WD system you may end up with the WD and the air system working against each other.
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  • Sway Control for 2014 Ford F-150 Pulling Heartland Mallard M32
    The best option for you would be to add a weight distribution hitch to control the sway while towing with your 2014 Ford F-150. In order to choose the best weight distribution hitch, you will first need to know your total tongue weight (TW), which is the tongue weight of your fully loaded and ready to go trailer plus the weight of any cargo behind the rear axle of your '14 F-150. To determine TW you can use a scale such as the etrailer # e99044 or by using one of the methods outlined...
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  • Maximum Towing Capacity of 2004 GMC Sierra 2500HD SLE 4x4 Crew Cab 6 Foot Bed
    Because trucks can be equipped in a multitude of ways, it's not always easy to pin down the actual towing capacity. However, there is one sure-fire way to find the max towing capacity of your vehicle. Look for the vehicle ID sticker in the door jamb for the driver's door. Look for the GCWR, which is the gross combined weight rating. This weight represents the maximum combined weight of the truck and trailer. From that figure, subtract the GVW, the gross vehicle weight. The GVW represents...
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  • Will Equal-i-zer Weight Distribution Brackets Sit Low Enough for Generator Box Door Clearance
    Hey Scott, thanks for reaching out! I don't have the exact height of that bracket, but the bolt from the Equal-i-zer # EQ64FR that sits on top of the trailer frame is 5/8" in and of itself so you're looking at around 1-1/4" at the very minimum, and that's if you're able to get enough tension with the system set at that lowest setting. A lot of times the brackets need to be brought up some so the bars have enough tension and there isn't a way to figure this out pre-owning it - so there...
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  • 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...
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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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  • Recommended Weight Distribution for Towing a 20 Foot Trailer with a 2017 Ram 1500
    A weight distribution (WD) system is needed when the trailer weighs at least half of the curb weight (unloaded weight) of the tow vehicle. Since this is the case with your 2017 Ram 1500 and the 20' travel trailer you are looking at I definitely recommend using a WD system. For your application I recommend the Reese Strait-Line # RP66083 because it uses a dual-cam sway control that works to prevent sway before it starts instead of correcting it after it starts. This has a tongue weight...
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  • Weight Distribution and Brake Controller Recommendation for a 2011 Nissan Frontier
    For a weight distribution system that offers sway control and the ability to backup without removing the spring bars or sway control, I recommend looking at our Blue Ox SwayPro systems. I have attached a link to all of the SwayPro systems for you to check out. In order to choose the best weight distribution for your truck and trailer, you will want to determine the total tongue weight of your towing setup. The total tongue weight will include the loaded and ready to tow tongue weight...
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  • Difference Between Friction Sway Bar and Weight Distribution System with Sway Control
    It sounds like you are deciding between a standalone anti-sway friction bar like the Reese # 83660 and a complete weight distribution system like the Reese Strait-Line # RP66084 that features integrated sway control for your Silverado and Keystone trailer. A friction sway bar will do a nice job of fighting sway once it has begun but a complete weight distribution system that uses tension bars for sway control will provide even more overall improvement, along with equalizing the load on...
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  • Determining The Correct Weight Distribution Hitch For A 2018 Chevy Silverado Towing A 20' Trailer
    Hey Jesse, To find the right weight distribution hitch for your setup you'll want to weigh the tongue weight while the trailer is fully loaded. You can do this with a tongue weight scale or you can take the trailer to a highway weigh station and have just the truck on the scale and measure it with and without the trailer connected to determine the tongue weight. Once we know what your tongue weight is I can pick out a weight distribution hitch to match your setup and provide some sway...
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  • Recommended Suspension and Sway Control for Springdale Trailer and 2018 Ford F-150
    The RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty # RAS94FR is rated for up to 3,000 lbs and the # RAS3611-B rated for 2,000 lbs are both good options for suspension enhancement to reduce sag. If you want to reduce sway then you'd be better off using a weight distribution system with sway control integrated. I recommend the Strait-Line Weight Distribution System w/ Sway Control - Trunnion Bar - 12,000 lbs GTW, 1,200 lbs TW # RP66084 along with hitch ball # 19286....
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  • Choosing the Best Weight Distribution System for 2018 Rockwood 2104S Trailer With 6,000 lb GVWR
    In order to determine the correct weight distribution system, you will need to know your total tongue weight (TTW) which is the tongue weight of your loaded Rockwood 2104S plus the weight of any cargo behind the rear axle of your 2014 Ram 1500. Typically, your tongue weight is going to be between 10% and 15%% of your trailer's GVWR, and according to my research, your new 2018 Rockwood 2104S trailer has a GVWR of 6,028 lbs. That would put your TTW in the range of 800 lbs and you would...
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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...
    view full answer...
  • Weight Distribution and Sway Control Recommendation for Airstream Excella
    Do you know the total weight or even better the loaded tongue weight of your trailer? With that I can see what would be best option.
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  • Is There a Specific Height Truck Can be to Install Weight Distribution
    You are likely still experiencing sway because for a weight distribution system like the Strait-Line Weight Distribution System with Sway Control # RP66084 you should have 5 links between between hook and U-bolt but no less than 4. There isn't a specified height that your truck can be to grab another link, so you can adjust as needed by raising your trailer tongue with the jack until you are level.
    view full answer...
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