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  1. Trailer Hitch Ball Mount
  2. BulletProof Hitches
  3. Adjustable Ball Mount
  4. Fits 3 Inch Hitch
  5. Drop - 7 Inch
  6. Rise - 6 Inch
BulletProof Hitches 2-Ball Mount for 3" Hitch - 7-1/4" Drop, 6-1/4" Rise - 22,000 lbs
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BulletProof Hitches

BulletProof Hitches 2-Ball Mount for 3" Hitch - 7-1/4" Drop, 6-1/4" Rise - 22,000 lbs

Part Number: HD306
$454.00
Trailer Hitch Ball Mount
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The thick channel plates and welded gusset on this solid steel ball mount make it perfect for heavy-duty use. Tow up to 12K with the 2" ball or 22K with the 2-5/16" ball. Adjustable design lets you tow trailers of various heights. Great Prices for the best trailer hitch ball mount from BulletProof Hitches. BulletProof Hitches 2-Ball Mount for 3" Hitch - 7-1/4" Drop, 6-1/4" Rise - 22,000 lbs part number HD306 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (701)
  • Q & A (0)
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BulletProof Hitches Trailer Hitch Ball Mount - HD306

Highlights

  • 22,000 lbs GTW for Heavy Loads: Handles large trailers, equipment haulers, and campers.
  • 7-1/4" Drop or 6-1/4" Rise for Level Towing: Adjusts to keep multiple trailers even and stable.
  • 2" and 2-5/16" Balls on One Mount: Lets you switch trailers without changing hitches.
  • Solid Steel Build with Welded Gusset: Adds strength for hauling at max capacity.
  • Matte Black Powder Coat Finish: Helps block rust and corrosion from road use.
  • Pins and Clips Included: Secure the adjustable platform quickly with no extra tools.

Features to know about

Keeps Every Trailer Level: 7-1/4" Drop and 6-1/4" Rise

When you’re switching between trailers, having the right height is everything. This adjustable 2-ball mount gives you up to a 7-1/4" drop or a 6-1/4" rise so each trailer stays level and stable. The ball platform slides up or down the heavy 5/16" steel channel and locks in place with the included pins and clips, making quick height changes easy without tools.

Adjustable channel of BulletProof Hitches ball mount featuring thick laser-cut steel plates with precision pin holes for height adjustment.

Built for Big Loads: 22,000 lbs Max Capacity

If you haul heavy gear, this mount is made for it. The solid steel build, welded gusset plate, and CNC-chamfered 3" shank are designed for serious towing jobs. With the 2-5/16" ball, it’s rated for up to 22,000 lbs gross towing weight and up to 12,000 lbs with the 2" ball, backed by a 3,000 lb tongue weight limit. It’s the kind of setup that stays solid under load without bending or flexing.

Close-up of welded 1/2-inch steel gusset bracing the shank and channel on BulletProof Hitches adjustable 2-ball mount for heavy-duty towing.

CNC-chamfered solid steel shank of BulletProof Hitches adjustable ball mount with smooth edges for easy installation and durable finish protection.

Resists Rust and Road Grime: Matte Black Powder Coat

After miles of rain and salt spray, finishes can start to give out—but this one holds up. The matte black powder coat shields the steel from corrosion while keeping a clean look on your truck. Even the pins and clips are heat-treated steel with a nickel undercoat and zinc topcoat for extra resistance against rust and wear.

Heat-treated steel pins and clips with corrosion-resistant nickel and zinc coating for securing BulletProof Hitches adjustable ball platform.

Switch Balls Fast: Dual-Ball Platform Design

Going from one trailer to another doesn’t need to mean changing mounts. This setup comes with both a 2" and a 2-5/16" hitch ball welded onto a single solid platform. Just pull the pins, flip the platform over, reinsert the pins, and you’re ready for the next coupler size—no tools or extra hardware needed.

BulletProof Hitches dual-ball platform showing welded 2-inch and 2-5/16-inch hitch balls for adjustable towing applications.

Ready for Add-Ons: Compatible with BulletProof Accessories

When the job calls for more than standard towing, this mount can adapt. The adjustable channel works with accessories like a weight distribution shank (358WEIGHTDIST), clevis (358CLEVIS), shackle (358EDSA), or hitch step (358STEP). It keeps your setup flexible whether you’re hauling heavy equipment or just need quick access to your bed.

Specs

Application

  • Application: 3" x 3" trailer hitch receivers
  • Ideal for vehicles with: 19" - 21" clearance from ground to bottom of inside of receiver tube

Drop and Rise

  • Maximum drop: 7-1/4"
  • Maximum rise: 6-1/4"

Dimensional diagram of BulletProof Hitches adjustable 2-ball mount showing how to measure drop and rise distances for a 3-inch hitch, labeled for technical reference.

Weight and Capacity

  • Gross towing weight (when used with 2" ball): 12,000 lbs
  • Gross towing weight (when used with 2-5/16" ball): 22,000 lbs
  • Maximum tongue weight capacity: 3,000 lbs

Dimensions

  • Distance from hitch pin hole to hitch ball (center to center):
    • Pin hole closest to channel: 11-3/4"
    • Pin hole furthest from channel: 13-1/4"
  • Overall height: 11-3/4"
  • Total length with ball platform installed: 18"
  • Total length without ball platform installed: 13-1/2"
  • Distance from center of hitch pin hole to gusset plate:
    • Pin hole closest to gusset plate: 3-1/2"
    • Pin hole furthest from gusset plate: 5"

Dimensional diagram showing measurements for BulletProof Hitches adjustable 2-ball mount including overall height, length, drop, rise, and pin spacing.

Weight

  • Total weight: 57 lbs

Hole Diameter

  • Pin hole diameter: 5/8"
  • Adjustment hole diameter: 5/8"

Warranty

  • Limited lifetime warranty

HD306 Bullet Proof Hitches Heavy Duty Adjustable 2-Ball Drop Hitch for 3" Hitch Receivers - 7-1/4" Drop, 6-1/4" Rise - 22K Capacity





Customer Satisfaction Score:

Ratings & Reviews

4.8

701 reviews
5 Stars
(630)
4 Stars
(43)
3 Stars
(10)
2 Stars
(10)
1 Star
(8)
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by:
Hitch has done everything I have asked of it, My trailer is heavy on the front in the 2k-3k range and the hitch has no issues with it. I would buy another with out question. The pintle hitch adapter is next on the list.
Joe B. profile picture

Joe B.

1/21/2022

IT HAS BEEN DOING GREAT, I HAVE HAD OVER 2K WEIGHT ON THE TONG AND IT HANDLES IT GREAT. ADJUSTABLE AND ADJUSTABLE!

by:
This is a very well made trailer hitch. Made out of quality materials. I would highly recommend it.
by:
Heavy Duty. Well Made.
Easily adjustable
by:
Very well made. Ups man just put at end of driveway and when I picked up I understood why. Everything fit perfectly.
by:
Heavy and seems of good quality. The box showed what it was so I am glad no one stole it.
by:
High quality product and better service!!
by:
by:
by:
This is a very well-built hitch, I am very happy with it so far. It arrived packaged very well and prompt as always from etrailer.
Galen profile picture

Galen

10/4/2026

Ive been using the hitch for a year. Im very happy with how easy it is to adjust, and how well it is built.

Jerred H. profile picture
Etrailer Expert

Jerred H.

10/4/2026

@Galen That's great to hear Galen! Thank you so much for coming back and sharing that with us.
by:
The height adjustment was perfect for finding the right height for my boat trailer’s hydraulic brake’s to work properly. I pull it with a Chevy Express conversion van which is closer to the pavement than most tow vehicles.
by:
I wanted 6 inche drop hitch. Got a 4. Want to return and upgrade to a 6 heavy hitch. Please respond
Mike L. profile picture
Etrailer Expert

Mike L.

9/30/2026

We're processing the return right now Kevin.

by:
This is my 2nd bulletproof hitch. My other one is to big to use on my truck. But it works great for my Tahoe. I am going to start shopping with you guys from now on for the things I want and need that you carry. There's 2 reasons why, first you have good prices but the thing that really won me over was the crazy fast shipping.
by:
It is heavy buy a locking pin so you don’t have to take it off
by:
Not my first time dealing with Etrailer and definitely not my last. Easy ordering and on time every time. Hitch is built very well exactly what we needed to tow our skid steer around. Seems very solid compared to otehrs we looked at.

Thanks etrailer.
David profile picture

David

1/29/2026

Still excellent and holding up well.

by:
Best hitch on the market and the shipping was insanely fast
by:
The product was delivered as promised and I have had the opportunity to try it. I'm very happy with it. Some reviewers complained about noise, so I was pleasantly surprised at how quiet my connection was especially compared with my previous hitch. I am very confident that will me meet my towing needs!
by:
heavy duty that’s for sure. packaging was excellent and no chance of it getting damaged in transit.Its got some weight to it so that’s good.Powder coating is nice.Its definitely getting the job done.
Brooke M. profile picture
Etrailer Expert

Brooke M.

5/13/2025

Their packaging is, would you say...bullet proof? [slaps knee] haha! What are you towing with such stout equipment?

by:
Rust starting to show and coating has worn off. Rep suggested this drop length and it is definitely too much even with my 2500. Not a product flaw a customer service flaw
by:
I need a solution for my BMW SUV to tow my boat and trailer with two ball sizes and very different height requirements. This worked perfectly. The name Bulletproof fits well - I was pleasantly surprised by the quality and engineering.
Ed T. profile picture

Ed T.

10/4/2021

Great - did 9k miles in early summer with no problems.

by:
Great hitch! Very solid. Was a little bigger than expected but no issues. Makes switch between trailers so much easier
by:
Fit truck and trailer better than expected. Pulls heavy trailer very well. That is why I bought locks to try and keep the hitch from being taken.
by:
Very high-quality hitch! The shipping was FAST!
by:
So far I am extremely happy with this hitch. It is very heavy duty. My towing capacity has changed and needed to upgrade to a heavy duty hitch. I have no doubts this is going to be Bulletproof!! It is very well built and a solid shank.
Colton profile picture

Colton

1/16/2022

Love this hitch. Best hitch I have ever owned.

by:
I have bulletproof hitches on all my vehicles. The quality is awesome and won't use anyone other than etrailer for my towing needs.
by:
Great hitch, and great experience with etrailer. The shipping was fast, and everything was packaged nicely. I even put the sticker on my truck window.
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