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  1. Weight Distribution Hitch
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  6. Fits 2 Inch Hitch
Strait-Line Weight Distribution System w/ Sway Control - Trunnion Bar - 8,000 lbs GTW, 800 lbs TW

Strait-Line Weight Distribution System w/ Sway Control - Trunnion Bar - 8,000 lbs GTW, 800 lbs TW

Item # RP66083
Retail:$1,952.57
Our Price: $835.08
You Save: $1,117.49
Weight Distribution Hitch
This item qualifies for Free Shipping
Shipping Weight: 100 lbs
Quantity: 
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Product Expert Lindsey S

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

Yes, if you:

  • Hate the tight, rigid ride you get with other systems that have built-in sway control
  • Might need to upgrade to a heavier trailer down the line and don't want to have buy a completely new hitch
  • Have a trailer with 400 lbs – 800 lbs of tongue weight that often veers out of line with your vehicle

No, if you:

  • Don’t have a lot of space to work with on your trailer frame, or if the frame is thicker than 2-1/2”
  • Have a boat trailer with surge brakes or an aluminum frame
  • Hate noise - the bars popping in and out of the cams can create a racket, especially during turns
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 - 8,000 lbs GTW, 800 lbs TW part number RP66083 can be ordered online at etrailer.com or call 1-636-306-4830 for expert service.
  • All Info
  • Reviews (309)
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Reese Weight Distribution Hitch - RP66083

  • 500 lbs
  • 600 lbs
  • 700 lbs
  • Fits 2 Inch Hitch
  • WD With Sway Control
  • Allows Backing Up
  • Includes Shank
  • Reese
  • Prevents Sway
  • Electric Brake Compatible

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: 400 lbs - 800 lbs
  • Gross towing weight: 8,000 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/ RP66083Required - 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.




66541 and 26002 Reese Strait-Line Trunnion Bar Weight Distribution Hitch with Hitch Bar

Installation Details RP66083 Installation instructions


California residents: click here


Customer Satisfaction Score:


Customer Reviews

Strait-Line Weight Distribution System w/ Sway Control - Trunnion Bar - 8,000 lbs GTW, 800 lbs TW - RP66083

Average Customer Rating:  4.7 out of 5 stars   (309 Customer 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.

by:

I had this hitch installed at a local RV specialist shop as I didn't have access to a large enough flat and level area. The cost was about $225. When I picked up the truck and trailer for a test drive, the trailer tracked true behind the truck and I never felt any sway. The load leveling feature helped keep the truck level and I always felt I was in complete control. The only down side to this product is the noise it makes when taking sharp turns. The metallic popping noise are scary at first but I was expecting them. Overall I am very pleased with the performance of this hitch and would recommend it.


Comments
No problems, hitch still performs as I described in my write up a year ago.
AL W - 08/07/2017


by:

Strait-Line Weight Distribution System w/ Sway Control - Trunnion Bar - 8,000 lbs GTW, 800 lbs TW

We love this hitch. You can forget the RV is back there. We are pulling a 16" Wolf Pup with our Gladiator.




by:

Works great on a older 28 ft. 6000lb. restored Airstream with a F150 4x4 with anti sway electronics. Without we could only go about 55 mph and the trailer would sway. The truck would warn us to slow down. The install was a bit complex we were not too sure of the angle of the hitch but we followed directions and it works. We traveled about 6k miles on two trips. It stopped the sway even at 70mph . Many a giant truck flew by at 80+ it started to sway but the bars prevented it. Backing and tight turns are no problem. Adjusting the chains require some work and disconnecting, reconnecting a pain. would highly recommend to any one .




by:

It’s easy to hitch up and distributes the weight well but does not do much for sway control for my single axle 3500lb trailer.




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


Comments
Knowing the height difference between the towed vehicle and the trailer is key in making sure the included WD shank will work for you. I have included a few articles below that would be helpful in obtaining this information.
-- Etrailer Expert Jenny N - 09/30/2022


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…




by:

Wish we would have purchased this sooner. Makes pull the camper much easier tans and gives us a feeling of being in control instead of the camper in control.




by:

This is definitely one of the very best weight distribution/sway control systems on the market. The travel trailer moves smoothly down the road with no wandering whatsoever. Large tractor trailers barely move the travel trailer as they pass by. I've taken several trips since buying this system and it consistently preforms very well. It's a great system I highly recommend this product.




by:

Took me about 8 hours to get it setup perfectly, but it was well worth the time spent. I pull a 20 foot v-nose trailer behind a 2014 F150 5.0. Its about 6,000 lbs with my race car in it. It used to sway a bit in the wind and not track great. This hitch really makes driving down the highway easier. No sway now, and tracks much better. I think it is well worth the time and money and would recommend this hitch to anyone.




by:

I purchased my second one in 2018 after having this system on my previous trailer. I love the function and how well my travel trailer is balanced with pull and weight distribution. The biggest change is in a tubular installation. The "press in" nuts have no tolerance for drill hole sizing error. I use the drill bit sizes and methods describe by the manufacturer. Yet, the nut would spin free during assembly. I had to use a creative solution just to get my system installed. I gave 4 Stars instead of 5 due to installation is not user friendly for a tube frame trailer.


Comments
This hitch continued to work great with my travel trailer through the 6 months after this review. I traded it away at that point, but retained the hitch. Looking for a non-travel trailer to add it to at this point due to its tremendous reliability and performance. I still stand behind this hitch and continue to recommend it to my friends.
Don. R - 06/22/2020


by:

I'm extremely impressed with ETrailer. The order was processed, shipped and delivered within 4 days...if it hadn't been for the weekend, it would have been sooner. The free shipping was a plus! I plan to install the system this week and will share pictures when finished. I would not hesitate to recommend ETrailer! Thank you!


Comments
Very, very well! I would not hesitate to recommend this product. Im still impressed by the service given by E trailers.
Gerald O - 09/13/2016


by:

Bought this hitch to use on a Jayco toy hauler at a dealers recommendation who sold several different types of load distribution/stabilizer products. Worked great so I bought another one for our new North Trail which is same size but 1/2 the weight. Only this time I installed it myself. Support from etrailer was excellent. They know their product. I actually ordered the wrong weight bars, and another part was missing and we had a trip scheduled! They got us the parts ASAP and we were ready to go with time to spare. One point of caution: When installing the ball, it requires 400 lbs of torque. I took this to a truck repair shop and did it for me free in just a minute.




by:

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:

The hitch worked wonderful. I was scheduled to have it installed by others but when they saw the unit they got scared, I think. So, having read and re-read the instructions myself by this time, I decided to go it myself. It took all of 4 hours and the following day we left on a five week trip to the northwest US. It performed really well. We had taken two shorter trips without it and I can really feel the difference it makes in windy conditions and weight distribution.


Comments
Flawlessly.Just returned from a 5-week, 5,600 mile trip. No problems with it.
Richard P - 08/04/2016


by:

Installed it to take 30 ft Springdale trailer to Yellowstone from Pa and back, best trip with camper in 10 yrs we have owned it. No sway or sag. Pulled with 2005 2500 Suburban. Makes loud creaking when turning sharp, but i've heard they all do.


Comments
The creaking noise you describe is caused by the spring bars sliding over the sway control cams, and is unfortunately unavoidable. As you mention, all weight distribution systems that depend on some kind of friction to provide the sway control function are going to make some kind of noise.
-- Etrailer Expert Mike L - 02/27/2019


by:

This Reese weight distribution and sway control unit is actually my second one. My experience installing the unit and then towing a 34 foot travel trailer with the first one was excellent. When I purchased a large enclosed car hauler, it was a "no brainer" to order a second one. The installation took approximately 4 hours although it could take less time if you aren't OCD like me. The trailer tows beautiful and etrailer has been very nice to work with...




by:

The new weight distribution hitch exceeded my expectations
Pricing was excellent,
Customer service was second to none!




by:

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




by:

Have one on my truck works very good. This order is for my daughters truck feel the sway bars make towing a lot safer for someone new to trailer towing.




by:

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


Comments
Awesome! What a difference it makes wouldnt travel without it!!
John W - 07/24/2018


by:

Have not opened up the two packages yet. My friend has one exactly like this one and he likes it very much and said he is getting no sway from Florida to Michigan. I believe we will be very happy with this hitch.




by:

Easy to follow instructions.
Quality
product.

Haven't towed TT w/ setup as of this date.


Comments
Works great, fairly easy pactical removal when going of road. No problems.
Dave - 01/28/2016


by:

The equalizer hitch arrived. It is really a heavy duty piece. unfortunately we will not get to road test it for a few more weeks when our new trailer arrives.




by:

Install the reese after fighting with a blue ox hitch.
The reese worked well on my 8k , 3 month trip from Maine to California.




by:

Works great no problems had a question customer service was great


Comments
Works great keeps the trailer very stable
Bob - 04/12/2020

25
309
Show More Reviews

See what our Experts say about this Reese Weight Distribution Hitch

  • Should Weight Distribution Be Used on a 2001 Ford F-150 Towing a Horse Trailer with a 9200lb GVWR
    If your owners manual states that the maximum towing capacity of your 2001 Ford F-150 is 9200lbs, then it your trailer would be well below this rating, even with two horses loaded. In your situation, weight distribution would not technically be required, but you may still want to add a system if you feel like the trailer is not tracking well behind the vehicle or if it seems like you are getting excessive sway. It depends on how comfortable you feel your ride is with the current setup,...
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  • Can a 1999 Ford Expedition Eddie Bauer 4x4 Tow a 2010 Jayco Jay Flight G2 Series M-32BHDS
    I did a little research and it looks like the towing capacity of your 1999 Ford Expedition Eddie Bauer 4x4 is 7,900 pounds maximum. I looked up the 2010 Jayco M-32BHDS trailer and it has a dry weight of 7,765 pounds and a gross weight of 9,750 pounds. Once you have the trailer loaded with water, gas, and cargo it will likely exceed the 7,900 pound capacity of the vehicle. I advise looking at a lighter weight trailer, something with a gross weight under 7,900 pounds such as the M-29BHS.
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  • How to Determine the Best Weight Distribution System for a 2007 GMC Yukon Denali and Fun Finder
    When choosing 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. Sway control is a good idea and will help keep the trailer riding straight behind your 2007 GMC Yukon Denali. I recommend dual-cam sway control because it forces the trailer to ride in a straight line...
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  • Using Weight Distribution Towing 2001 Kodiak Hybrid with 2004 Toyota 4 Runner
    Your towing capacity will depend on how the vehicle is equipped. According to my research, the V6 4 Runner model can tow up to 5000 lbs. The V8 models have a higher tow rating, 7300 lb for 2WD models, or 7000 lb for 4WD models. I would strongly suggest consulting your owners manual or your Toyota dealer for confirmation. Your owner's manual should state if your vehicle is rated for weight distribution. You'd also need to check your hitch, to ensure it's rated for weight distribution....
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  • Suggestions To Help Reduce Sway For Trailer While On Trip
    Sway can be caused by a couple different things. One thing that you can do to try and help is to remove some weight from the back of the trailer and move it forward, giving you more tongue weight. Also, make sure your tires are properly inflated. I have attached a helpful article about weight distribution and sway control you can check out. Another thing that can cause sway is the spring bar tension. Since you said you spoke with Blue Ox about your system and they told you it is set up...
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  • Troubleshooting Trailer Sway with a 2015 Toyota Tacoma Towing Pop Up Camper
    To reduce sway your best options are going to be to remove the lift kit you put on the front of your 2015 Toyota Tacoma and then use a weight distribution system for when you are on the highway. If you need the type of articulation you described for off-road situations you would need to remove the spring bars when encountering these areas. 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....
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  • How to Determine if a 2010 Ford F-150 Platinum has Factory Sway Control System
    Sway control was an option on the 2010 Ford F-150. If the truck has the heavy duty towing package you would have it. If you are not sure you can check. Look at the stability control interface. By pushing select/cancel button you can turn the sway control on or off. If the truck has it then it would display the sway control as on or off. Sway control in a vehicle works differently than sway control on a trailer and is different than weight distribution. Sway control on a vehicle will help...
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  • Installation Instructions for Reese Dual Cam Weight Distribution System
    Set-up of a Reese dual cam weight distribution system like # RP66083 is shown in the linked video. The complete written instructions are also linked for you. It is important to know your trailer's fully-loaded road-ready tongue weight (TW) when selecting a system. The spring bars need to be selected based on the actual weight load on them, which consists of the trailer's TW plus the weight of anything in the truck bed that sits behind the rear axle, such as a cooler or generator. You total...
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  • Does Shortening Chain of Weight Distribution Chain Hangers Reduce Suspension Sag
    You are correct. If you shorten the length of the chain between the spring bars and the frame hangers you will apply more spring bar tension which would remove even more sag from the rear suspension. For more info on installing and setting up the Strait Line weight distribution systems check out the video I attached that shows the entire process.
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  • Weight Distribution Hitch Recommendation for 1997 Chevy Suburban that Sags When Towing
    A weight distribution system would be exactly what your setup needs. They are designed to distribute some of the tongue weight that is causing the rear of your vehicle to sag up to the front axle of the vehicle which helps level it. It also improves handling and braking performance. 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...
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  • Best Weight Distribution System Recommendation for Trailer with 500 lbs Tongue Weight
    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 an FAQ 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. Since your tongue weight is 500 lbs the Strait-Line...
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    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. Typically tongue weight is 10-15...
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    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. Once you determine the loaded tongue...
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    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. Typically tongue weight is 10-15...
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  • Will the Shank Included with Strait-Line Weight Distribution System # RP66083 do 5.5 inches of Rise
    The shank that comes with the Strait-Line Weight Distribution System # RP66083 that you referenced can do up to 6-1/2 inches of rise. Since you only need 5-1/2 inches of rise the included shank should work well for you. Typically we recommend you install the head of the WD system about an inch taller than what would put the trailer at level. I included an FAQ on picking the correct rise/drop ball mount plus a review video on this WD system for you to check out.
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  • Weight Distribution System Availability with Sway Control
    We did stop carrying the Equalizer brand weight distribution hitches. We do carry several other weight distributions systems though. The Reese Strait Line systems are great and actually have the only sway control system that works to prevent sway before it starts. See link to see all of the Strait Line systems we carry. 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...
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    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 an FAQ on determining tongue weight for you to check out as well. Typically tongue weight is 10-15 percent of the total trailer weight, so your 3,500 lb trailer will most likely have a tongue weight of 350-525 lbs. For a system that would...
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  • Are Reese Weight Distribution Spring Bars Compatible with a Draw-Tite Weight Distribution Head
    The Reese and Draw-Tite brands are both sister companies that are part of the Cequent Performance Products Group based in Michigan. It is indeed possible that a particular set of Reese weight distribution spring bars may be compatible with a particular Draw-Tite branded head assembly. In order to confirm this with the technical team at Cequent I will need to know the actual part numbers involved. Naturally, the type of spring bars must be the same; if your head unit is for trunnion-style...
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  • How to Prevent Trailer Sway
    To fight trailer sway your best defense is proper trailer loading. If you can load your trailer so that 10 to 15 percent of the total weight of the trailer is tongue weight you will be doing well. Sway control can help with sway from intense wind or from a passing semi-truck, but it will not fix a trailer that wants to sway at a certain speed. Weight distribution will take some of the tongue weight and actually distribute it back up to the front axle of the trailer which will also help...
    view full answer...


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