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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
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$1,154.04
Weight Distribution Hitch
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The best technical support and full weight distribution hitch installation instructions. Great price Springdale Travel Trailer weight distribution hitch and expert service. Keystone Springdale Travel Trailer, 2018 weight distribution hitch by Reese are available from etrailer.com. For expert service call 1-800-940-8924 to order your Strait-Line Weight Distribution System w/ Sway Control - Trunnion Bar - 12,000 lbs GTW, 1,200 lbs TW part number RP66084, or order online at etrailer.com.
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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.



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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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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.



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



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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



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I have used this setup on 3 different trailers with good results. K



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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172
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...
    view full answer...
  • 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...
    view full answer...
  • Determining Old Weight Distribution System Manufacturer and Replacement Part Options
    It does look like an old style Reese system. We have seen a few of these and they are similar to the newer version # RP66084. The part pictured has been replaced with the newer dual cam system yet they function in a very similar way. They no longer make that system, so I recommend upgrading to the newer system if you need replacement parts as those parts are no longer available. I've attached an article on weight distribution systems to further assist if you want information on how...
    view full answer...
    Image 1 for
  • 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...
    view full answer...
  • 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...
    view full answer...
  • 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.
    view full answer...
  • 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...
    view full answer...
  • 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...
    view full answer...
  • 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...
    view full answer...
  • 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...
    view full answer...
  • RoadActive Suspension Enhancement for 2004 GMC Denali with Quadrasteer
    I have an option for you, but the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS4611 is not compatible with the Quadrasteer system on your 2004 GMC Sierra Denali. Your best bet and the only confirmed suspension enhancement solution that won't interfere with your Quadrasteer components, is the Timbren Rear Suspension Enhancement System # TGMRCK25S. These hollow rubber springs sit above the rear axle to help stabilize and level your Sierra.
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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...
    view full answer...
  • Weight Distribution Recommendation for a Keystone Zeppelin EZ190
    For your application I recommend going with the Reese Strait-Line # RP66084 because it offers the best sway-control on the market and it has a great tongue weight range of 600 lbs - 1,200 lbs. Since weight distribution tongue weight takes into account the tongue weight of your trailer when it is fully loaded plus any weight that sits behind the rear axle of your 2013 GMC Yukon this system is actually the perfect strength for your setup. All you need to do is add a 2" # A-90 or 2-5/16" #...
    view full answer...
  • 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...
    view full answer...
  • 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...
    view full answer...
  • Can Ram Tradesman 2017 Diesel 2500 Use Weight Distribution
    I did some checking in an online owners manual of your 2017 Ram 2500 and it looks like it can be equipped with a factory sway control setup. There are no restrictions on weight distribution that I could find which would be a more helpful way to fight sway and help with your towing experience. Did you speak to Ram specifically on the sway control restriction? Here's the info on the sway control that I found. "The trailer sway control is supported by a mechanical telescoping link that...
    view full answer...
  • Weight Distribution Hitch For 1,000 lbs of Tongue Weight With Brackets in The Way
    Hey Rodney, appreciate the photo, it was really helpful, and we have exactly what you need here, which is the Chain Hangers # RP58305. Weight distribution hitches that use brackets aren't going to work due to the placement of your propane tank, which is why the hangers are needed. These will bolt onto your trailer frame so the brackets for your propane tank won't interfere. The weight distribution system with sway control that you'll need to go along with it is the Strait-Line Weight...
    view full answer...
    Image 1 for
  • 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...
    Image 1 for Image 2 for
  • 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.
    view full answer...
  • Picking Out Ball Mount So that Trailer Sits Level
    So you really just want the correct rise/drop ball mount to allow your trailer to sit level and not a weight distribution system. I attached an FAQ that details how to pick out the correct ball mount. Picking out the correct ball mount will allow your trailer to sit as level as possible. Basically you will first measure the height from the ground to the top of the receiver opening on the hitch while on level ground. Next, you will measure the coupler height from the ground to the bottom...
    view full answer...
  • 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....
    view full answer...
  • Weight Distribution Recommendation for 2020 Ford F-250 Towing Travel Trailer Jayco 31BHDS
    You're in a situation where weight distribution won't be absolutely necessary but you would have a better overall towing experience with a system installed. They say (the "all knowing they") that any time your trailer weighs more than half the weight of the tow vehicle weight distribution is recommended. Even on a vehicle built for towing like your 2020 Ford F-250. If you were planning on towing quite a bit with that RV I think you'll be much happier with a WD system. You'll have reduced...
    view full answer...
  • Weight Distribution Recommendation for 2015 Forest River Salem Cruise Camper
    I can't attach the pictures you sent in due to copyright issues but for the 2015 Forest River Salem Cruise you sent info in on that has a tongue weight of 631 lb unloaded I would recommend the Reese Strait Line WD system part # RP66084 which has a tongue weight range of 600-1,200 lbs and features the best sway control that works to fight sway before it starts.
    view full answer...
  • Is Additional Price of Equal-I-Zer Weight Distribution Worth It Over Curt TruTrack
    Equal-I-Zer weight distributions systems are well worth the additional money over the Curt TruTrack. The TruTrack is a less expensive replica of the Equal-I-Zer systems that we've found just don't work quite as well. I know it's a bit pricey but the part # EQ37100ET is your better option. This will perform better for a much longer time than the Curt so it's worth it. Overall the Equal-I-Zer kits just use higher quality components.
    view full answer...


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