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  1. Anti-Sway Bars
  2. Hellwig
  3. Anti-Sway Bar
  4. Rear
  5. 1 Inch Diameter
  6. Mounting Hardware Included
THIS ITEM IS NOT A FIT FOR
1999 Ford Taurus
Hellwig

Hellwig Rear Adjustable Anti-Sway Bar - 1" Diameter

Part Number: HE66TR
In Stock
$885.69
Retail:$1,265.21
You Save: $379.52
Anti-Sway Bars
Not Confirmed to Fit

1999 Ford Taurus

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Minimize sway and driver fatigue by improving the stability and driveability of your truck. Adjustable anti-sway bar lets you choose level of stiffness. Solid, 1" bar provides improved handling and safety. Includes mounting hardware. 1-800-940-8924 to order Hellwig anti-sway bars part number HE66TR or order online at etrailer.com. Free expert support on all Hellwig products. Great prices and Fastest Shipping for Hellwig Rear Adjustable Anti-Sway Bar - 1" Diameter. Anti-Sway Bars reviews from real customers.
  • All Info
  • Reviews (105)
  • Q & A (0)
  • Videos (2)
  • Photos
  • Used (1)

Hellwig Anti-Sway Bars - HE66TR

Highlights

  • Custom Fit for Your Vehicle: Tuned to your suspension for better control and stability.
  • Reduces Sway: 1" solid steel bar cuts side-to-side movement for a steadier, safer ride.
  • Adjustable Control: Three stiffness settings let you fine-tune handling for load or road conditions.
  • Handles Crosswinds: Keeps your truck level against gusts, passing traffic, and shifting cargo.
  • Less Driver Fatigue: Smoother tracking means fewer steering corrections on long drives.
  • Uses Existing Connections: Installs with included zinc-plated hardware and no drilling required.
Made in USA

Features to know about

Better Handling Under Load: Adjustable Rear Bar for Stability

Nothing tightens up the feel of your rig like dialing in the right stiffness out back. This adjustable rear anti-sway bar uses a solid 1" diameter 4140 chromoly steel bar with three adjustment holes so you can choose how firm you want it. It ties the rear axle to the chassis in a way that cuts down side-to-side movement and body roll, especially when cornering or dealing with shifting weight. The result is sharper handling and a more confident ride.

Smooth Ride in Crosswinds: Keeps Things Level and Predictable

Long highway runs or gusty conditions don’t have to mean fighting the wheel. By minimizing sway, this bar helps keep your vehicle level through crosswinds, passing semis, and uneven roads. The reduced side-to-side motion means you’re not constantly correcting your steering, so the drive feels calmer and more controlled.

Long-Term Strength: Chromoly Steel and Polyurethane Bushings

Built from thick 4140 chromoly steel, the bar is made to handle serious stress without flexing. Polyurethane bushings replace standard rubber ones, standing up to oil, gasoline, and ozone so they last longer and keep their shape. Less give in the bushings means better, more consistent support every mile.

Simple Installation: No Drilling, All Hardware Included

You don’t have to modify anything to get it installed. The bar mounts up using the included zinc-plated hardware, complete with lubricant for the bushings. The bar wears a corrosion-resistant silver vein hammer-tone powder coat, while the brackets get a black powder coat for added durability and a clean finish. Once it’s bolted on, you’ll notice the difference right away in how solid and balanced the rear feels.

Specs

Dimensions

  • Bar diameter: 1"

Warranty

  • Limited lifetime warranty

7812 Hellwig Adjustable Rear Anti-Sway Bar - 1" Diameter

Installation Details HE66TR Installation instructions

This Product Fits The Following Vehicles




Video of Hellwig Rear Adjustable Anti-Sway Bar - 1" Diameter
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for In-Depth Review of the Hellwig Rear Adjustable Anti-Sway Bar

Hi everybody, Andy here with etrailer.com. Let's take a look together at this Hellwig adjustable rear anti-sway bar. Now, this anti-sway bar has been designed specifically to fit your 2021 to 2023 Ford F-150 that have been lifted two to four inches. And on custom fit parts such as this sway bar, I do recommend taking advantage of our vehicle fit guide. Simply input the year, make, and model of your vehicle and our fit guide will confirm if this will work for you or if we have something comparable that will work for you. Now this sway bar is going to help minimize side to side movement, improving the overall stability of your truck.

This system will let you execute turns and quick maneuvers with confidence, giving you a level ride even on irregular surfaces. It's also going to help reduce driver fatigue by minimizing the effort required to keep your F-150 in line. And it's also gonna help diminish the effects of crosswinds, passing motorists, and shifting cargo. This anti-sway bar does for side to side movement what a good pair of shocks does for up and down motion, giving you a marked improvement in the overall stability of your truck. Now hopefully you can see here along the sides, we do have three adjustment holes on either side, they're gonna allow you to choose the degree of stiffness that's gonna work best for you.

The holes that are closest to the bar is going to be the stiffest setting, and then the holes that are farthest from the bar is the softest setting. So you do have that range of adjustability. These bushings are made of polyurethane instead of the standard rubber variety, giving you a longer lasting system. They're durable, they're resistant to damage caused by oil and gasoline and ozone. So less wear means less give in the system and better overall support.

Now the diameter of this bar is one and three eighths inches. It is made here in the USA of solid heat treated chromoly steel, giving you that superior strength. And I would like to zoom in overhead just to give you a good view of this finish. This bar features a silver vein hammer tone finish, which not only gives you protection from corrosion, but the finish actually has little divots in it. So when you grease your polyurethane bushings and slide them over the bar, this finish is gonna do a great job of holding that grease in your bushing.

Now these do include, or this bar rather does include a great set of instructions with photos to guide you through the installation process. The mounting hardware is zinc plated and the end lengths and the brackets have been finished in a black powder coat. You're gonna get some bushing lubricant along with some fiber type. And this does have a limited lifetime warranty from Hellwig. Well, I think that's gonna wrap up our look today. I do hope that our time together has been helpful for you. Again, my name is Andy, thank you for joining me.

Customer Satisfaction Score:

Ratings & Reviews

4.7

105 reviews
5 Stars
(85)
4 Stars
(13)
3 Stars
(4)
2 Stars
(2)
1 Star
(1)
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by:
2022 Ford F-150
Fairly easy installation and I’m not a mechanic. For the price of a professional installation, I was able to purchase all necessary tools and still save money.
by:
Upon receiving the box which came on time, I took all the pieces out to make sure I got everything I needed. Two 7/16-20 21/4 inch bolts were missing. I called Hellwig customer support and they promptly sent the replacements. The bolts were not packed with the rest of the installation materials. I also want to say that the top of the box was torn open. Many of the heavy staples had come out. The box inside was torn open and a couple of pieces had slipped out. Also someone trampled over the box because there were boot marks all around the box. Very poor quality in delivery service even though it came on time. Important parts could have fallen out and delayed installation. Not very good delivery service.
by:
Ford F-150
I have a 2024 F150 Super crew 4x4. Adding this anti-sway bar has made a huge improvement on the cornering and handling on this truck. I was ok with the ride on the F150 when I first got the truck but the body lean seemed excessive. There is a fair amount of body roll when you are cornering in this truck. Adding the Hellwig Rear adjustable Anti-sway bar makes cornering in this truck like a nice handling car. I can't wait to run with my 24' enclosed trailer and see the difference in the handling on that setup. I highly recommend this.
by:
by:
2025 Ford F-150
by:
Don, the sales advisor was very friendly and helpful. The Helwig Sway Bar fit perfectly and took about an hour to install. Great service and shipping. Thanks, Guys.
Lazer S. profile picture
Etrailer Expert

Lazer S.

5/13/2026

Glad we could help, George! I'll let Don know as well! Have you noticed a difference in handling yet?

by:
chevrolet Silverado
Overall is a good product. The bar itself is good quality and the parts are good. So far so good on the sway bar. Makes my truck ride better and feel more controlled. If you’re installing this on a 2020+ silverado 2500, the way this is hung from the frame is difficult. Theres a part of assembly the requires a metal plate tack welded to a wire that has to go inside the frame of the truck. I spent about an hour and a half to install it but I ran through the install process about four times. When you push that plate into the frame you really have no control where it lands. I ended up using a small metal pick to pull the plate to the required location. Once there, I used a long screw driver to hold the plate down while I set the bolt in. I honestly think had I not used the screwdriver this plate would have never gone on. Theres a small hole right above the mounting hole to push the plate down. Theres also welded bolts that GM put under the rear shocks that have no threads and thats where the brackets go. It says to drill them out and use the provided bolts but I just went to my local auto shop and picked up bolts that fit the welded bolts. Seemed to work just fine. Once these were overcome, install was straight forward and went on pretty quick. Four stars just because the mounting is difficult compared to other products HellWig make.
by:
I really like the fitment and performance of the product. I have installed a Hellwig anti-sway bar on my last 3 trucks and always feel an improvement the way the truck handles cornering and when pulling a load, especially when there is a cross wind.
Kate F. profile picture
Etrailer Expert

Kate F.

6/5/2026

Thanks for your review, Matt! It says a lot that this is the third truck you've equipped with a Hellwig anti-sway bar. We're glad to hear you've continued to see improvements in handling, especially when cornering, towing, and dealing with crosswinds. It really is amazing the difference an upgraded sway bar makes!

by:
2015 toyota Tacoma
Application was a 2015 Tacoma.
Install was easy enough. For others that may read this, it would be wise your spare tire to make certain there is no interference with the sway bar.
I have a 33" spare tire, I had to make new adjustments after I tried to put spare tire back up. Infact, May be wise if you have room to leave the spare tire in and work accordingly.

The install is new, sediments are a bit subjective as to difference. But driving while unloaded I get a bit surprised that the Tacoma tracked really well around a curve. Folks at E- Trailer were great.
by:
When lifting a jeep, body roll, increases due to the mechanical advantage of the chassis over the factory sway bars. This larger and adjustable sway bar helps correct that issue and allows for fine-tuning to driver preference.
by:
Easy installation

Haven’t towed with i
t yet so not sure how much it will help the sway with a 31ft travel trailer.
by:
2016 Ram 2500
For the second time in a row ordering from etrailer, either parts were missing from my order or shipping was a problem. The sway bar works fine, once I got the right parts to install it.
by:
This is a heavy duty sway bar. The installation was straight forward and simple.
I used the middle adjustment hole as I wanted to tow an RV. I took it on an initial test drive. This unit completely got rid of the body roll. Well please and know that a little hint, wear gloves when apply the lubricant as that is gooey!
by:
Great quality part at a decent price and a quick delivery on my order. Will definitely use etrailer again!!
by:
2026 dodge Ram Pickup
I installed the 1 inch adjustable anti-sway bar on my 2026 ram rebel and it works great. Even though I only put it on the least aggressive setting, the truck handle so much better through the turns now that it did before. I will test it to a 7000 pound trailer in the next couple weeks. . Definitely recommend!. Also, E trailers Service was super friendly and super fast. I received the Hellwig antisway bar in two days after ordering
by:
It was just what I needed to fix the top heavy sway on my truck camper!
by:
2017 dodge Ram Pickup
I put a really heavy truck camper on my 2017 ram 2500 6.7 hemi and it took turns ok but it would rock side to side a couple times over bumps and uneven roads. I wasn't sure if this would make a difference because the factory one looked pretty big but it made a huge difference. This and airbags are a must for heavy loads.
I also go it a day sooner then I thought.
Very happy.
by:
2024 Ford F-150
Solid, sturdy and well built anti-sway bar. I installed it on my 2024 Ford F150 without removing the spare tire and the install went fairly easy. It did take some time as I was.doing it myself. An extra set of hands would make it a bit easier. Love how solid my truck feels and drives now.
by:
I only recently learned my 2023 1500 ram, which includes the tow package, uses a hollow sway bar. Disappointed in Ram.
Using the outer most setting made a significant difference over the original equipment. In fact the difference is so noticeable I’m going to fireplace the front sway bar as well.
by:
2018 Ford F-150
I haven't installed this kit yet, but the quality looks very decent and quality. The kit is complete. The only issue is that I have an 8.8 axle, but the brackets are for a 9.75, however, I think that if I tighten everything down correctly, it should install just fine. Thanks.
by:
Nice product However the instructions are terrible! The written instructions have been copied so many times they are basically unusable. The accompanying video left out many important details causing a much longer instal time than necessary. We had to uninstall more than once do to correct the incomplete installation video.
by:
Ashley was wonderful to work with on my order fast shipping tech was great help the rear sway bar was a up grade from stock unit by far great Quality easy to install Hellwig makes a awesome product l will buy more product’s from e trailer in the future
by:
Great upgrade for my truck and fifth wheel.
by:
2019 Ram 1500 Classic
Easy installation on Ram 1500 classic 2wd. Took about 1.5 hrs including the test drive. Didn't have to jack the truck up, just crawled under and bolted it in.

Thanks to eTrailer support for pointing me to the right one for my truck.
by:
2021 Ram 1500
Easy install and definitely stiffer cornering. Can't wait to try with trailer.
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Used Items Available
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Condition: Missing Parts

Notes: This is just the sway bar, no hardware included.

$568.40
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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Chris R
Video by:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee John S
Video Edited:
John S
Employee Andy C
Installed by:
Andy C
Employee Sabrina W
Written by:
Sabrina W
Employee Scott A
Test Fit:
Scott A

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