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  1. Trailer Hitch Ball Mount
  2. Weigh Safe
  3. Fits 3 Inch Hitch
  4. Adjustable Ball Mount
  5. Drop - 6 Inch
  6. Rise - 6 Inch
Weigh Safe 2-Ball Mount w/ Built-In Scale - 3" Hitch - 6" Drop, 6" Rise - 21K

Weigh Safe 2-Ball Mount w/ Built-In Scale - 3" Hitch - 6" Drop, 6" Rise - 21K

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Our Price: $369.00
Trailer Hitch Ball Mount
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Shipping Weight: 22 lbs
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Measure your tongue weight to determine if you can safely tow by simply coupling your trailer to this ball mount. Ball platform locks to shank. Tow up to 8,000 lbs with the 2" ball and up to 21,000 lbs with the 2-5/16" ball. Lowest Prices for the best trailer hitch ball mount from Weigh Safe. Weigh Safe 2-Ball Mount w/ Built-In Scale - 3" Hitch - 6" Drop, 6" Rise - 21K part number WS6-3 can be ordered online at or call 1-833-496-1390 for expert service.
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  • Reviews (1150)
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Weigh Safe Trailer Hitch Ball Mount

  • Fits 3 Inch Hitch
  • Adjustable Ball Mount
  • Drop - 6 Inch
  • Rise - 6 Inch
  • 2 Inch Ball
  • 2-5/16 Inch Ball
  • Two Balls
  • Class V
  • 21000 lbs GTW
  • Built-In TW Scale
  • Weigh Safe
  • Aluminum Shank - Silver
  • Stainless Steel Ball

Measure your tongue weight to determine if you can safely tow by simply coupling your trailer to this ball mount. Ball platform locks to shank. Tow up to 8,000 lbs with the 2" ball and up to 21,000 lbs with the 2-5/16" ball.


  • Ball mount with included hitch balls lets you hook up your trailer to your tow vehicle
    • Shank slides into hitch receiver
    • Ball provides connection point for trailer coupler
  • Tongue weight scale built into the ball mount platform helps you balance your trailer
    • Promotes safe towing - lets you know if your load needs to be adjusted before you tow
    • Simple operation - automatically provides a measurement every time you couple your trailer
    • Efficient and hassle-free - eliminates the need for separate or commercial scales
  • Adjustable height lets you tow trailers of different heights with the same vehicle
    • Slide ball mount platform up or down shank and secure in place with included dual locking pins
      • 2 Keys are included
  • 2 Different-size hitch balls let you tow trailers with different coupler sizes
    • To switch ball, simply remove the ball-retaining lock pin from the platform, insert ball, and reinsert pin
  • 6061 T6 billet aluminum shank and mounting platform provide superior strength and durability
    • Solid block construction provides greater strength than hollow steel competitors while also maintaining a light weight
    • Rustproof for a clean finish that stands the test of time
  • Stainless steel hitch balls are corrosion resistant
  • Hitch pin and clip or hitch lock sold separately
  • SAE J684 certified and VESC Regulations V-5 compliant
  • Made in the USA


  • Application: 3" x 3" trailer hitch receivers
  • Gross towing weight:
    • 2-5/16" Diameter hitch ball: 21,000 lbs
    • 2" Diameter hitch ball: 8,000 lbs
  • Tongue weight: 2,200 lbs
  • Distance from center of hitch pin hole to center of hitch ball: 8-3/4"
  • Maximum drop: 6"
  • Maximum rise: 6"
  • Incremental height adjustment: 1"
  • Scale gauge diameter: 1-1/2"
  • Warranty:
    • Limited lifetime for ball mount
    • 1-Year limited for scale gauge

Weigh Safe ball mount coupled to a trailer

This Weigh Safe ball mount has an easy-to-use, built-in scale that measures your trailer's tongue weight every time you tow. If the scale indicates that your tongue weight is too low or too high, you can adjust it before you head out so that you can complete your journey with the peace of mind that your setup is safe.

What is Tongue Weight?

Tongue weight (TW) refers to the weight that the fully loaded trailer exerts downward on the hitch ball of the tow vehicle. Tongue weight is typically 10 percent - and should not exceed 15 percent - of your gross trailer weight. For example, a 10,000-lb trailer should have a tongue weight between 1,000 lbs and 1,500 lbs. You can adjust the tongue weight of your trailer by removing or adding cargo, or redistributing the load on the trailer. The tongue weight should not exceed the capacity of your tow vehicle, your hitch, or any of your towing components.

Why is Tongue Weight So Important?

Weigh Safe helps ensure proper trailer tongue weight

Simply put, too little tongue weight can cause trailer sway and too much tongue weight can cause the tow vehicle to perform poorly. You may have difficulty steering, gaining traction, or braking when driving a setup that has too much weight pushing down on the rear of the vehicle. Ultimately, towing with an improper tongue weight can cause you to lose control of your vehicle or cause your trailer to separate from the vehicle.

Built-In Tongue Weight Scale

The gauge of the Weigh Safe built-in tongue weight scale

The Weigh Safe ball mount's built-in scale signals you to adjust your load before you hit the road, resulting in a much safer and enjoyable towing experience. Before this ball mount, gauging your trailer's tongue weight was a hassle. You had to rely on inefficient bathroom scales, make a trip to the weigh station, or purchase a separate tongue weight scale. But with the Weigh Safe's built-in scale, measuring your tongue weight is as easy as coupling your trailer to your ball mount. Simply hook-up your trailer to the Weigh Safe ball mount just as you would any other ball mount. The weight of your trailer will push down on the hitch ball, which in turn pushes down on an internal hydraulic piston that sits on a bed of oil. When the piston drops into the oil, the pressure reading is sent out to the scale.

Easily Adjusts to Fit Your Setup

Weigh Safe ball mount has adjustable height

Adjusting and setting up the Weigh Safe ball mount to work with your specific trailer is easy. First, unlock and pull out the dual pins and remove the platform from the shank. Next, pull out the hitch ball retaining pin from the back of the platform and insert either the 2" or 2-5/16" hitch ball. A 1-7/8" hitch ball (WSB-L - sold separately) is also available. Then reinsert the retaining pin to secure the ball to the platform. Replace the platform and slide it along the shank to the desired height. Insert the dual pins and use one of the included keys to lock the pins in place.

Weigh Safe ball mounts installed in drop and rise positions

The Weigh Safe ball mount can be used in either the drop or rise position to best suit your application.

Superior Aluminum and Stainless Steel Construction

From the first moment that you lay eyes on the Weigh Safe ball mount you'll see that you're getting a superior, well-made product. The Weigh Safe's shank and ball mount platform are made entirely of 6061 T6 billet aluminum, which is the same material that is used to build aircraft components, automobile frames, and freight liners. This type of aluminum is known for having superior strength while maintaining its light weight, which makes it highly desirable over hollow steel components. 6061 T6 aluminum is also rustproof, which means the Weigh Safe hitch will maintain its clean, shiny, and impressive appearance for years to come. And the hitch balls are made of solid stainless steel, offering far greater protection against rust and corrosion than other steel hitch balls that are only painted or plated on the surface.

The Weigh Safe ball mount meets VESC V-5 regulations and is SAE J684 certified. These regulatory bodies - the Vehicle Equipment Safety Commission and the Society for Automotive Engineers - create standards for the design, construction, and performance of automotive and towing accessories. Weigh Safe has had this ball mount thoroughly tested in simulation to ensure that it complies with these standards. The result is a strong, safe, sturdy product that is built to last.

How to Measure Drop on Adjustable Ball Mount

WS6-3 Weigh-Safe Trailer Hitches with Tongue Weight Gauge - 2" x 2-5/16" Ball Combo - 6 Inch Drop - 3 Inch Hitches

Item # WS6-3

Customer Reviews

Weigh Safe 2-Ball Mount w/ Built-In Scale - 3" Hitch - 6" Drop, 6" Rise - 21K - WS6-3

Average Customer Rating:  4.8 out of 5 stars   (1150 Customer Reviews)

Measure your tongue weight to determine if you can safely tow by simply coupling your trailer to this ball mount. Ball platform locks to shank. Tow up to 8,000 lbs with the 2" ball and up to 21,000 lbs with the 2-5/16" ball.

- WS6-3

The hitch is very well made. Solid pieces of aluminum were used to make this. I will admit I seldom actually look at the scale feature in the hitch unless I'm really loading my trailer and worry about tongue weight or the lack of. I mostly look at the scale to make sure I have enough weight so the trailer doesn't sway. It is a quick way to know. Once I have the height adjusted I haven't changed it. I've pulled some serious loads using my Ford Super-duty Diesel and this hitch has worked great.

- WS6-3

Out of the box it’s quite an art piece feels very strong and capible, it’s weight and material had me nervous at first but after putting it to the test on some of the nations worst roads with a very loaded trailer I wouldn’t hesitate to recomend to a friend, I did have a minor issue with mine right out of the box and addressed my every concern almost immediately got me to right people at weigh safe they have a very good customer service and back their product and warranty.

I actually didn’t use this for a year, for every time I used it I had to pay postage to send it off because of a faulty gauge, the company eventually recalled the gauge but I haven’t used it since the new gauge was installed.
Matt - 11/28/2018

- WS6-3

Excellent quality and easy to use

Fast delivery, Great quality and easy to use!
David - 06/07/2022

- WS6-3

This is the most impressive hitch I have ever seen. Looking for quality? This is it, five pieces of machined stainless. SOLID! 21,000 lb rating and no doubt in my mind it can do it. First class and the last hitch I will ever have to buy!

- WS6-3

I bought this hitch which was pretty costly compared to others without the built in scale. I don’t know if the scale ever was accurate. The scale busted after three short tows. Each tow had a tongue wait anywhere from 300-500 lbs. Well within limits of the receiver. It always weighed way higher and after the 3rd trip with a trailer it stuck at full gauge and never moved again.... super disappointed. But I liked the way the hitch looked and kept using it anyways. After about 4 months i needed to change from the 2 5/16 ball to the 2” ball. That’s when I realized how much play had started to occur in the hitch and ball.... tossed it in the scrap pile after that. A hitch needs to be safe and not have wear and tear occur in such a short period of time. 1 star.

The scale assembly has a warranty of 1 year, with the remainder of the ball mount carrying a limited lifetime warranty. Please call our Customer Service folks at 800-298-8924.
-- Etrailer Expert Mike L - 05/16/2019

- WS6-3

The most impressive trailer hitch I’ve owned. Solid, heavy duty construction built. Fits my F350 handsomely. Thank you.

- WS6-3

Scale stopped working after 9 months. It is covered by warranty but shipping the heavy hitch for repair is on your dime. People at weigh safe advised it was a common problem with hitches made prior to late 2018 due to corrosion problems. Since that time the hitches are being assembled with a stainless scale. It's a good hitch but be careful that you are not buying NOS (new old stock) product. This has nothing to do with etrailer as they have always been a great seller.

- WS6-3

Nice looking hitch. Six inch drop is perfect for my dually. Disappointed that with the 3 inch shank, the hitch head will not store backwards like the smaller ones do.

- WS6-3

Extremely nice! Not disappointed at al l.

- WS6-3

I read 2 reviews and I think I saw video, that shows this ball and mounting being reversed to fit under the receiver. It does not do that, so I returned it. My pickup will barely fit inside my garage and I didn't want to have to remove the hitch every time I drive it inside. I feel guilty when I park with that hitch sticking out so someone might walk by and bang their leg on it. Aside from that one drawback it is a very nice hitch. It's hard to buy things sight unseen, and paying Freight back to the shipper makes me question the wisdom.

- WS6-3

The Best hitch ever as always etrailer did as promised thats why our team loves them ,Keep up the great work!

Sweet no problems only solutions thx
Gary C - 11/01/2019

- WS6-3

Website was super easy to navigate, ordering was painless and hassle free. Our hitch shipped promptly. I was notified by phone when it shipped and was also sent an email. Customer service seems to go above normal expectations. Would and will order from them again.

- WS6-3

Great service from etrailer. Hitch arrived fast. The weigh safe ball hitch was so nice I ordered one for my brothers truck. Thanks George for the great service!

- WS6-3

Easy site, great response, arrived in a couple of days. Exact;y what I wanted. Quality looks flawless. Engineering is detailed and perfect, like a work of art. Only complaint is I wish they had recommended the "locking' pin as additional purchase so it could be shipped together. I notified etrailer of my comment and they have responded immediately. Highly recommend this company.

- WS6-3

Very pleased

- WS6-3

good quality product. This was part of my second order from e.trailer the packaging and shipping are superb. I wish I would have found years ago. Great people who are willing to help with any situation, answer questions, and great customer service. Highly recommended company

- WS6-3

This is Awesome have a B&w and love this more great Product

- WS6-3

Great product fast shipping

- WS6-3

Awesome fast delivery ...I would definitely be a returning customer

- WS6-3

Product was just as advertised. Shipped quickly and arrived in perfect condition. I would recommend to everybody

- WS6-3

Nice product very well built

- WS6-3

Fast service. George J was able to ship faster for the same price and living in Alaska we appreciate the cost of shipping. The product also was exactly as shown in the photos. Thank you

- WS6-3

Units fits great and allows for plenty of adjustment. Very satisfied with etrailer customer support and extremely fast shipment!

- WS6-3

As advertised

- WS6-3

Extremely light and very well built. I love this hitch

Show More Reviews

Ask the Experts about this Weigh Safe Trailer Hitch Ball Mount

  • Correct Size Weigh Safe Ball Mount for 2019 Ford F-350 Dually
    Based on my research your 2019 Ford F-350 Dually would have come from the factory with a 3 inch trailer hitch receiver. With that being said I highly recommend taking a quick measurement on the receiver opening just to be sure as there are trim levels available for the F-350 that included a 2-1/2 inch receiver as well. If you do indeed have the 3 inch receiver then the Weigh Safe 2-Ball Mount # WS6-3 that you referenced will work perfectly. If you find you have the 2-1/2 inch receiver...
    view full answer...
  • Adjustable Ball Mount for 2017 Ford F350 for Varying Height Trailers and Won't Drag
    For a truck like your 2017 Ford F-350 an adjustable ball mount with a 6 inch drop like the part # WS6-3 would be a great choice to give you plenty of flexibility without creating any ground clearance issues. You should note that this is for 3 inch trailer hitches which your truck most likely did not come with as it most likely has a 2-1/2 inch hitch like what the # WS6-25 was designed for.
    view full answer...
  • Can I Use my Weigh Safe Ball Mount Instead of a Weight Distribution Hitch
    A Weigh Safe # WS6-3 is not designed to perform the same function of a weight distribution hitch, and they are not compatible with weight distribution hitches. If there are concerns with tongue weight of your trailer you'll want to use the Weigh Safe to take the tongue weight measurement before each trip to ensure that your trailer is properly loaded. Once that task is complete you'll need to jack the trailer back up, remove the Weigh Safe, connect your weight distribution hitch and proceed...
    view full answer...
  • Adjustable Ball Mount with Tongue Weight Scale for 2020 Ford F-250 with 3 in Hitch
    Your 2020 Ford F-250 does have the towing capacity to tow a trailer that weighs 11,500 lbs with room to spare from what I found online. A weight distribution would certainly help but it would not be an absolute requirement. The Weigh Safe 3 inch ball mount part # WS6-3 has the capacity needed and would work really well for your truck and trailer combination.
    view full answer...
  • How to Determine How Much Drop is Needed from Ball Mount to Tow Trailer Level
    I have attached a help article on how to determine the rise or drop you need for a ball mount. Basically, you will want to park your truck and trailer on flat ground. First, measure from the ground to the top of the trailer hitch receiver opening. Next, measure from the ground to the bottom of the trailer coupler. If the trailer hitch receiver opening is taller than the bottom of the trailer coupler, then the difference between the two measurements is the amount of drop you will need in...
    view full answer...
  • Adjustable Ball Mount for 3 inch Hitch on GMC Sierra 3500
    For a 3 inch hitch that is 19-1/2 inches from the top of it down to the ground you'd want a ball mount with about 6 inches of drop like the Weigh Safe part # WS6-3 that you referenced. The ball mount will be high enough it won't drag and you'll have enough drop to tow trailers that sit lower as it's very common for trailer couplers to sit more towards 12/13 inches from ground. The fact that the dual ball setup of this is a removable ball instead of one that has two balls on either side...
    view full answer...
  • Ballmount Drop Needed for Rental Trailer
    The average bumper pull trailer coupler height averages between 16-22 inches. When we measure to determine the rise or drop of ball mount needed, we measure from the inside top of the receiver tube, which would place your receiver height at roughly 24 inches. The rental company should be able to tell you the coupler height of the trailer you're renting, but if they cannot the 8 inch maximum drop provided by the # WS8-3 would allow your trailer ball to be set as low as 16 inches, which...
    view full answer...
  • Choosing Between 6" and 8" Weigh Safe 2-Ball Mount w/ Built-In Scale for Ford F-450
    The correct size drop to look for in a ball mount is specific to the truck and trailer. You'll want to get the one that allows you to tow multiple trailers yes but if you go with too much drop it can create ground clearance issues. Therefore, it's best to measure your truck and trailer first. If you don't have a trailer yet you can use the standard coupler height of 16"/17" as a guide and then subtract this from the distance from the ground to the top of the receiver tube on the truck....
    view full answer...
  • Recommended Hitch Lock for 3 Inch Receiver Used with Weigh Safe Ball Mount
    I have a solution for you, but there is not a way to get your WeighSafe # WS6-3 keyed alike with any other locking parts. However, you can use the Weigh Safe Hitch Receiver Lock for 2", 2-1/2", and 3" Hitches - 3-1/2" Span # WS05 paired with that ball mount and it'll do a great job. I've linked a video review for you to check out.
    view full answer...
  • Ball Mount to Fit a Class V 3 Inch Hitch Receiver on 2017 Ram
    Yes, we do carry Weigh Safe ball mounts that will fit the 3 inch hitch receiver on your 2017 Ram: # WS6-3 provides up to 6 inches of rise or drop # WS8-3 provides up to 8 inches of rise or drop # WS10-3 provides up to 10 inches of rise or drop
    view full answer...
  • Is There a Weight Safe 2-Ball Mount With Scale For 3 Inch Trailer Hitch Receiver
    We do have what you are looking for, which is a Weigh Safe 2-Ball Mount with Built-In Scale that fits a 3 inch trailer hitch receiver. These have a 2 inch hitch ball (which has an 8,000 lb capacity) and 2-5/16 inch hitch ball (which has a 21,000 lb capacity), and you can choose from different amounts of maximum rise or drop. - Maximum 10" Drop or Rise: Weigh Safe 2-Ball Mount with Built-In Scale - 3" Hitch # WS10-3 - Maximum 8" Drop or Rise: Weigh Safe 2-Ball Mount with Built-In Scale...
    view full answer...
  • Is There a Way to Order Replacement Keys for Weigh Safe Ball Mount
    I do have an option but there aren't any replacement keys that can be had for a Weigh Safe Ball Mount. If you are missing a key the only option would be a new lock, part # WS05 for the hitch pin lock or part # WS06 for hitch pin and adjustment lock.
    view full answer...
  • What Size is the Hitch Pin Hole on Weigh Safe Ball Mount for 3 Inch Trailer Hitches # WS6-3
    Weigh Safe adjustable ball mount for 3 inch trailer hitches # WS6-3 takes a 5/8 inch diameter pin. A lock such as # 5201 has a useable length of 3-1/2 inches and should just fit a 3 inch hitch.
    view full answer...
  • Can You Use The Ball Platform From The 3 Inch WeighSafe Ball Mount On The 2 Inch Ball Mount
    Yes, you can use the Replacement Locking Dual Pin Assembly # WS03 and the Replacement Hitch Ball Platform w/ Built-in Scale for Weigh Safe 2-Ball Mounts for 2" Hitch # WS01 with the Replacement Shank for Weigh Safe or 180 Hitch 2-Ball Mounts # DB8-2 since they share the same measurements as the 3" version # WS6-3.
    view full answer...

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Info for this part was:

Employee Mike L
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Mike L
Employee Michael H
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Michael H
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Employee Lindsey S
Edited by:
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Employee Jeff D
Installed by:
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