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  1. Weight Distribution Hitch
  2. Blue Ox
  3. 900 lbs
  4. Fits 2 Inch Hitch
  5. WD With Sway Control
  6. Allows Backing Up
Blue Ox TrackPro Weight Distribution w/ Sway Control - 7-Hole Shank - Underslung - 10K GTW, 1K TW

Blue Ox TrackPro Weight Distribution w/ Sway Control - 7-Hole Shank - Underslung - 10K GTW, 1K TW

Item # BLU55FR
Our Price: $658.85
You Save: $105.47
Weight Distribution Hitch
Shipping Weight: 92 lbs
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Minimize trailer sway and ensure a level, stable ride with this weight distribution system. Positive caster angle works to keep your trailer centered and steel-on-steel friction corrects sway. Works w/ underslung couplers. 2-5/16" Ball included. Great Prices for the best weight distribution hitch from Blue Ox. Blue Ox TrackPro Weight Distribution w/ Sway Control - 7-Hole Shank - Underslung - 10K GTW, 1K TW part number BLU55FR can be ordered online at or call 1-800-940-8924 for expert service.
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Blue Ox Weight Distribution Hitch - BLU55FR

  • 900 lbs
  • Fits 2 Inch Hitch
  • WD With Sway Control
  • Allows Backing Up
  • Blue Ox
  • Includes Shank
  • Surge Brake Compatible
  • Some Sway

Minimize trailer sway and ensure a level, stable ride with this weight distribution system. Positive caster angle works to keep your trailer centered and steel-on-steel friction corrects sway. Works w/ underslung couplers. 2-5/16" Ball included.


  • Weight distribution system ensures a level and stable ride when towing
    • Evenly distributes weight over axles of tow vehicle and trailer
    • Helps you maintain better control of your vehicle and avoid trailer sag and excessive tire wear
  • Built-in sway control limits side-to-side movement of trailer
    • L-brackets rigidly hold spring bars in place - unlike chain-style brackets - to keep your trailer in line
    • Positive caster angle in the hitch head keeps trailer centered and helps prevent sway before it begins
    • Steel-on-steel friction corrects sway caused by winds or sudden maneuvers
  • Hitch head with preset pitch requires no additional adjustments after initial setup
    • No more stacking washers to reach the desired tilt
  • Tapered design of spring bars allows them to flex to avoid a stiff ride
    • Interchangeable with other TrackPro spring bars (sold separately) to raise or lower the weight capacity
  • Compatible with surge-type brake actuators
  • No-drill, clamp-on brackets can be adjusted along the trailer frame
    • Accommodates frame-mounted items such as gas tanks, battery boxes, toolboxes, or generators
  • Grease zerks built into the backs of the trunnions make lubrication easy
  • Lift lever makes it easy to snap the spring bars into place
  • Powder coated steel construction is durable and corrosion resistant
  • System includes head assembly, adjustable shank, hitch ball, spring bars, sway control L-brackets, lift lever, pin and clip, and all necessary hardware
  • Made in the USA


  • Tongue weight: 800 lbs - 1,000 lbs
  • Gross towing weight: 10,000 lbs
  • Application: 2" x 2" trailer hitch receivers rated for use with weight distribution systems
    • Designed for use on trailers with bottom-mounted couplers
  • Trailer frame size: up to 6" tall
  • Ball size: 2-5/16"
  • Lift-bracket positioning: mount 20" to 25" back from hitch ball
  • Maximum drop: 2"
  • Maximum rise: 8"
  • Limited lifetime warranty

Included w/ SystemRequired - Sold SeparatelyOptional Add-Ons
  • Weight Distribution Shank
  • Weight Distribution Head
  • 2-5/16" Chrome Hitch Ball
  • 2 Sway Control Brackets
  • 2 Spring Bars
  • Snap-up Lever
  • Hitch Pin and Clip
  • Necessary Installation Hardware

Create a more 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 of 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, and it also gives you the ability to tow the maximum capacity of your hitch.

Blue Ox weight distribution system

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 towing 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 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.

2 Types of Sway Control

The TrackPro features 2 different sway control technologies to provide the best towing experience possible.

Positive Caster Keeps Trailer Centered

Blue Ox TrackPro Positive Caster

The TrackPro is built with a positive caster angle - pointed toward the rear of your trailer - to help stop sway before it even starts. This is the same technology that vehicles use to stay centered on the road. When you turn a corner in your car and let go of the steering wheel, the wheel automatically corrects itself and returns to center. This is caster taking over. Likewise, the TrackPro features a positive caster angle built into the hitch. Working in tandem with the tapered spring bars to create a self-centering force, this caster angle helps to keep your trailer consistently centered behind your tow vehicle, even during high winds and sharp turns, resulting in a smoother towing experience.

Steel-on-Steel Friction Corrects Sway

Blue Ox TrackPro Steel-on-Steel Friction

While this system does its best to keep your trailer in line, the TrackPro is also able to correct sway should it occur. Unlike many traditional weight distribution systems with chain-style setups, the TrackPro uses steel brackets to hold the ends of the spring bars, and therefore your trailer, in place. While chain-style setups do a good job with weight distribution alone, they aren't really designed to limit sway, so they typically allow a good amount of side-to-side play.

In addition to better holding the trailer in line, these brackets create friction with the spring bars to combat sway that might occur in heavy winds or following sudden maneuvers. When this type of sway happens, the tapered ends of the spring bars slide within the L-brackets that are mounted on the trailer tongue. When each spring bar moves forward or backward, or side to side, it rubs along the bracket, creating friction. This friction limits the movement of the spring bar, which minimizes further side-to-side movement of the trailer. The steel-on-steel friction that occurs with the TrackPro's spring bars is the same sort of friction that is used with locomotives that pull loaded railcars that weigh multiple tons, so you know it'll be highly effective.

Fast, Easy Setup

Blue Ox TrackPro Hitch Head

Many weight distribution systems require you to manually adjust the pitch of the hitch head by stacking washers. This can be a tedious, trial-and-error process where you have to unhook your trailer, disassemble the head to add or remove washers to get the desired tilt, put it all back together, and then determine if you have the correct placement. If the pitch still isn't right, you have to do it all over again.

The TrackPro removes all of that hassle with an easy-to-use hitch head that has the required pitch already built into it. Whereas other systems require washers to help achieve the proper tension in the head, the positive caster angle built into the TrackPro ensures the proper pitch, so there's no need to manually adjust the tilt. The only adjustment that may be needed is the placement of the head on the shank. Move the head up or down along the weight distribution shank to achieve the proper rise or drop for your setup. No additional, fine-tune adjustment is needed.

BXW1053 BlueOx Weight Distribution Hitch for Underslung Couplers - Track Pro - 1,000-lb Tongue Weight - 2" Drop/8" Rise

Installation Details BLU55FR Installation instructions

Customer Satisfaction Score:

Customer Reviews

Blue Ox TrackPro Weight Distribution w/ Sway Control - 7-Hole Shank - Underslung - 10K GTW, 1K TW - BLU55FR

Average Customer Rating:  4.5 out of 5 stars   (180 Customer Reviews)

Minimize trailer sway and ensure a level, stable ride with this weight distribution system. Positive caster angle works to keep your trailer centered and steel-on-steel friction corrects sway. Works w/ underslung couplers. 2-5/16" Ball included.


Bought this to reduce rear sag in truck and you would think installing is pretty common sense but apparently it isn't. Instructions aren't very clear and since sad didn't go away at all, I'm guessing it isn't installed correctly. Instructions need to be MORE clear than they are otherwise you'll need to pay a professional to install it as I have no idea if it's correct or not.

Etrailer Expert

Sierra K.


Please take a look at this attached video starting at the 11:08 mark to make sure you followed the same install instructions as the etrailer installers.


My order was 3 days early thank you very much



It was installed professionally by camping world. Coating is all coming off. Arms pop out during travel. The square pins fall though slots. The angled brackets that mount to camper chassis are failing. Its the worst hitch I have ever owned. Literally.


I like the hitch and it works great with my '07 Tundra and 27' Travel Trailer. It makes the two feel like you're driving a single vehicle and Cross winds and buffeting from passing semi's is virtually unnoticeable. Unfortunately, the Powder coating leaves a bit to be desired and warrants a significant mark down in the rating.

Pros: Easy of installation and hooking up the hitch. Adjustments are also very simple.

Cons: The "Powder Coating" is atrocious. It showed up flaking out of the box and just continued flaking during the installation. So, it started immediately surface rusting. I didn't think it worth returning and I guess I will just touch it up with spray paint as needed. Powder coating should be significantly tougher than what I see on this hitch. If it wasn't for this I would absolutely give it 5 stars. In the picture with the 2 bolts is the most obvious example of the flaking powder coat.


My only gripe with etrailer is shipping quality. This is a heavy item, well constructed, heavy duty, not lightweight. To ship this in a standard cardboard box without reinforcement is nuts. When delivered by UPS this box had gapping holes and part of the contents were protruding outside the shipping box. My UPS driver stated that such heavy items should be attached to a wood skeleton inside the box to keep from moving around during shipment. To my amazement all the parts were present, albeit banged up a bit with paint damage and gouging. So be aware that you may find your order in similar condition. etrailer responds to me with yada yada. Not real happy with this one but the unit itself is quite robust although a little black enamel will be required.


First my truck and trailer sit and travel LEVEL, and I am pleased with the hitch after loosing one of the original “pins” while traveling(these are the pins that keep the sway bars on L brackets). I ordered the replacement “Pins” Now after a couple thousand miles, I do like how stable the truck and trailer are when other vehicles pass, the side push pull is much less. If the hitch came with the replacement “Pins” this would be a 5 Star Review.


This thing is amazing! I bought this to haul my 24’ car (toy) hauler behind my 03 Suburban which has coil springs instead of leaf springs. This hitch has made a world of difference. I honestly was shocked at the difference it made. It almost feels like I’m not hauling a trailer at all.


I bought this in April '22 for our new trailer. The second day of our trip to Alaska, one of the Retaining Keys with the cotter pin fell off. It was while hooking up to our campsite that we saw it was gone and the spring bar bar had been free of mooring. Luckily we had a C Bolt and duck tape to hold the one sway bar without the retaining key and taped up the other to make sure it didn't fall off on the rest of our journey. When we called Blue Ox they sent two day to AK the two packages of the retaining key w/step. These turned out different than the ones that came on the TracPro and are thicker and shorter - I think these were suppose to come with the TracPro WD/Sway and should have been in the package when we got it. There is too much play between the sring bar and the L Bracket with the Retaining key that was in our order. Pictures for reference. If you order the Blue Ox TracPro, call make and sure you get the correct Retaining Keys with it, you should not have to buy them separately.


Jbars bend to easy and brackets move even when torque to speck


Easy to install haven’t driven the truck yet, but it seems to be doing exactly what it needs too.

Trailer hooked up with the blue ox the rear of the truck sits 4” higher than without. The nose drops about 3/4” compared to no blue ox. Massive difference in the right direction.

The photos are a 2021 4Runner no extra load in the back. Trailers 17’ ~3,500lbs max. I believe about a 350lb tongue weight and was mostly un-loaded.


the only problem I had was when the UPS man picked up the box all the nuts,bolts and hair pins fell out. other than that, I have received accurate advice as for the purchase and i am very happy with the hitch and its quality. easy to set yp and sturdy. tows great


Works well. It's my first time with a distribution hitch, so I've no basis for comparison. I tow a 7200# 30' trailer with a 2007 F-150 (full-timer). It took a few trips to the scales to get things right, since I'm very close to my weight limits. Product arrived without the receiver (damaged box). Etrailer was very quick to provide replacement.

On assembly, I discovered that it was sent with incorrect mounting plates. Blue Ox expedited a parts kit. Overall, it seems to work well. I still have to be careful with wind, or I get pushed around on the road. It's mostly a non-issue.

I've traveled about 5-6K miles, and there is some noticeable wear, scoring, and rust developing where the torsion bars meet the trailer. These parts should be easily replaceable, as long as they're still manufactured. You may want to consider spares once you confirm that you have the correct bars. The friction points can develop metal splinters.

The pivots started showing wear after a long stretch of bouncy highway in Iowa. It was within the 1st 1000 miles, so I'll count this as break-in. I just readjusted the mounting point on the trailer at an overnight stop. I haven't had to adjust it since. The slop in the bushings makes for a greasy mess.

Wear gloves and put a plastic bag over the receiver when you remove it, or you're going to get greasy. Also, be careful of how low the receiver hangs down. I've caught it twice in uneven parking lots. I'm leaving it long, since it helps protect the tongue jack.

It meets expectation. Etrailer and Blue Ox provided excellent customer service. I still took one star, since I was on a deadline with work, and my plans got pushed back two weeks because of this. It shouldn't have happened in the first place, but the customer service from both parties was fantastic.


The TrackPro parts list listed items 14 and 15 as 2-5/16" and 2" Hitch balls respectively, only the 2-5/16" ball was included and I needed the 2" hitch ball. Now I'm having to have the 2-5/16" hitch ball removed from the underslung hitch head assembly and get a 2" hitch ball attached. Looking forward to getting it all hooked up, I do expect a great improvement in the towing experience.


I was told to purchase Blue Ox WDH from a friend. It seems to be very well built easier to attach and back up with still attached to trailer. Also seems to be smoother/quieter then other brands. It must be because of the load bars shape.


Pulled to Dallas from Jackson, MS and back and they performed as advertised - sway was cut way dawn. When it did occur it was self correcting.


Heavy and good quality


These were easy to install on our 2021 Cherokee Wolf Pup trailer. The sway control is very good and the towing is now a very smooth safe ride. Backing is very easy. The only drawback is we have to raise the trailer tongue and truck pretty high with the jack to get them on easily. Lots of tension on the bars. Safety and smooth towing is why we purchased and for this i would recommend purchasing.


Works great.


The difference with and without the Blue Ox is dramatic.
I pull a 25' Airstream with a 2011 Porsche Cayenne with a 3.6 liter 6 cylinder.

The Blue Ox balances the Cayenne to a degree that I didn't think was possible.

This hitch needs to be the first thing you buy when you get an RV.


Hello, The weight distribution seems to work fine. We took our traveler trailer on 2 trips since purchasing the trailer hitch and all the accessories. The sway is just frightening. We have not had any real wind, this was in May and July of this year. But super scary, and when a tractor trailer passes us, even just one, forget it. We are towing with a big Ford Expition also. I would not recommend this model. It was expensive and we will have to figure out what we are going to replace it with. Gil


Drove from Colorado to Oregon.
It worked better than our old one. Barely felt the big rigs as they went by.


I received the hitch and the box was falling apart! Obviously the box did not hold up due to the weight of the product during shipment. I will inventory all pieces to make sure everything is still there when I go to open the box.


Item received timely and in good condition. Installation was rather simple, as the instructions were very good and everything for well. However, on of the pins was missing. This was a minor inconvenience, as I was able to find one at the closest hardware store 10 miles away. This is the only reason this is not a five star rating. Upon completion of installation, pulling my grooming trailer with the water tanks partial or full at greater than 55 mph was no longer a harrowing experience that I often wondered if I would survive. If you pull a trailer often, and it had swaying issues, this product is absolutely necessary.


Best investment I have made in my trailer other than the trailer itself. Works great

Show More Reviews

See what our Experts say about this Blue Ox Weight Distribution Hitch

  • Blue Ox TrackPro Weight Distribution For Flagstaff 22TBS Travel Trailer w/720LBS Dry Tongue Weight
    Yes, the Blue Ox TrackPro Weight Distribution # BLU55FR will be the correct system to use as long as your Flagstaff 22TBS has an underslung coupler. Otherwise you will need the Hitch # BLU77FR if you have a standard coupler which is mounted on top of the trailer frame. Both of these have the tongue weight rating of 800-1,000lbs of tongue weight. Your 720lbs dry weight will quickly increase to over 800lbs when the dealer installs a deep cycle battery and they fill the propane tanks.
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  • Troubleshooting Ford F-150 And 2022 Coachman Northern Spirit Riding Light With Blue Ox TrackPro
    From your description, it appears your the front of your 2012 Ford F-150 is riding light because you have too much weight on the tongue. The good news is you do not have to replace your entire Blue Ox TrackPro. The Blue Ox TrackPro Weight Distribution w/ Sway Control - 7-Hole Shank - Underslung - 10K GTW, 1K TW, part # BLU55FR, you are using is an underslung coupler; the coupler is attached to the bottom of your trailer's frame instead of the top. If your 2022 Coachman Northern Spirit...
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  • Recommended Weight Distribution System for a 4,500 lbs GeoPro Travel Trailer
    I would be happy to help you find the right weight distribution system for your Geopro Travel Trailer. I will start out by saying if you are going to be off-roading you will absolutely want to unhook the bars. You will break or warp something very quickly. With that in mind, I recommend the Blue Ox TrackPro Weight Distribution item # BLU67FR. This system has a 600 lbs - 800 lbs tongue weight range which will cover your trailer perfectly. It also has built in sway control that will keep...
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  • Replacement Weight Distribution System for 6,600 lb Loaded Trailer
    I really like the Blue Ox TrackPro systems because they have the built-in sway control and brackets with adjustments to fit different trailer tongue profiles They have the 13K system # BLU27FR as opposed to a 12K system but unless you have a really tongue-heavy setup and a lot of stuff sitting behind the rear axle of your tow vehicle the 10K system # BLU55FR will give you a better performance. When looking into purchasing a Weight Distribution (WD) system you want to find one with a Tongue...
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  • How to Choose WDH Based Off of Trailer Tongue Weight
    Great question! The tongue weight rating on a weight distribution hitch (WDH), like the 1K Blue Ox TrackPro # BLU55FR, takes into account the loaded tongue weight of your trailer plus the weight of any cargo behind the rear axle of your tow vehicle (which is known as the total tongue weight). When a WDH is set up correctly your vehicle should be within 1" of it's unloaded height. To make sure you get the best performance be sure to have your loaded trailer tongue measured at 10-15% the...
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  • Recommended Weight Distribution System With 6 Inches of Drop
    The Reese Steadi-Flex # RP66560 offers good sway control and weight capacities, but is a little limited on the amount of drop. We do not currently have an option to give you more than 4 inches of drop. That being said, we do have a few other options available. The Blue Ox Weight Distribution Shank # BLU86FR will offer up to 7 inches of drop when used with one of their trunnion bar set ups. This would need to be purchased separately from one of said systems. These do have a little less...
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  • 2018 Ford F-150 Towing Capacity for 10K GVWR Travel Trailer
    Great question! The GVWR of 7,000 lbs is the max your 2018 Ford F-150 can weigh when it comes to the vehicle weight, plus passengers, plus cargo. For towing a trailer we are needing to find the GCWR instead, which is the max combined weight rating of both the truck, passengers, cargo, and anything for the trailer. According to the 2018 Ford Towing Guide it looks like all 2018 F-150s with the 3.5 V6 have a high enough trailer weight rating for this to be safe, unless you have the 4.10...
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  • Recommended Weight Distribution System for a 7,500 lbs Travel Trailer
    I looked online and the Forest River 263bhxl tops out at right around 7,500 lbs when fully loaded. A weight distribution system is recommended off of tongue weight which is typically 10% -15% of your trailer's total weight. This would put yours from 750 lbs - 1125 lbs. With this in mind I would not recommend using the Blue Ox TrackPro item # BLU55FR you were looking at. It has a tongue weight range of 800 lbs - 1,000 lbs and you would get nothing out of it if your tongue weight is above...
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  • Can Curt TruTrack Weight Distribution System Be Used with an Underslung Trailer Coupler
    Thanks for reaching out, Joe! You can technically make the Curt TruTrack fit with an underslung coupler by using longer brackets like the 8" # C17515 or 10" # C17516 but I don't really recommend doing this because the TruTrack wasn't really designed to work with an underslung setup. Instead, I recommend using a weight distribution system designed specifically for an underslung coupler like what we find with the 10K Blue Ox TrackPro # BLU55FR which works well with loaded trailer tongue...
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  • Can Timbren Springs, SuperSprings & Blue Ox Weight Distribution All Work Together 2018 Ford F-150?
    You are able to install the Timbren Rear Suspension Enhancement System # TFR1504E along with the SuperSprings # SSA28 while also using a Blue Ox TrackPro Weight Distribution # BLU55FR on your 2018 Ford F-150. The weight distribution is going to help the most with leveling your F-150 when connected to a trailer. The SuperSprings being a more active suspension than the Timbren will begin to engage sooner when weight is applied and will provide a more stable ride. The Timbren's with these...
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  • Will the Blue Ox Tongue Weight Adapter Work With the Blue Ox Track Pro
    The Blue Ox Pole Tongue Weight Distributing Hitch Adapter # BXW4023 is supposed to work with any over the frame style WDS, but since you're using the Blue Ox TrackPro Weight Distribution w/ Sway Control # BLU55FR you'd want # EQ95-01-5950 instead.
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  • Weight Distribution Hitch Recommendation for a 7,500 lb GVWR Trailer
    The Fastway e2 Weight Distribution # FA92-00-1000 is a decent recommendation and they are reliable - I just would say they are more of that entry-level, economy style weight distribution system. The Reese Strait-Line # RP66084 that would be the right size for a 7,500 lb GVWR trailer is definitely more of a premium option as it has arguably the best sway control, but you are correct that it is a bit more tricky to set up just because there are more parts than normal. For a great, middle-of-the-road...
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Info for this part was:

Employee Lindsey S
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