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Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches

Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches

Item # BWGNRK1384-5W
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Fifth Wheel Installation Kit

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B and W Custom - BWGNRK1384-5W
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Install a Companion fifth-wheel hitch in your truck bed with this custom kit. Better than a traditional mounting kit, this setup doubles as a gooseneck hitch when the fifth wheel is removed, and the underbed design allows for full bed access. 1-800-496-5010 to order B and W fifth wheel installation kit part number BWGNRK1384-5W or order online at Free expert support on all B and W products. Guaranteed Lowest Price and Fastest Shipping for Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches. Fifth Wheel Installation Kit reviews from real customers.
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  • Reviews (15)
  • Q & A (0)
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2015 Ram 2500 - Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches

  • Below the Bed
  • Custom
  • B and W

Install a Companion fifth-wheel hitch in your truck bed with this custom kit. Better than a traditional mounting kit, this setup doubles as a gooseneck hitch when the fifth wheel is removed, and the underbed design allows for full bed access.


  • Lets you install your B&W Companion 5th wheel trailer hitch (BWRVK3500 or BWRVK3400)
  • Doubles as heavy-duty Turnoverball gooseneck trailer hitch
    • Includes rails, gooseneck hitch head, safety chain loops, and hitch ball
  • Provides complete truck bed access when you're not towing
    • Single hole in center of bed is mounting point for hitch
  • Installs easily using existing holes in your vehicle's frame
    • No welding or frame drilling required
    • Truck bed does not have to be removed
    • 3-1/2" Diameter hole must be cut into bed
  • Powder coated steel is sturdy and corrosion resistant
  • Made in the USA
  • Limited lifetime warranty

B&W Turnoverball Gooseneck Trailer Hitch

B&W Turnoverball Gooseneck Hitch

Not only does this kit provide you with a sturdy, custom base for installing your Companion fifth-wheel trailer hitch in the bed of your truck, but it also doubles as one of the most recognizable gooseneck hitches on the market. This fifth wheel installation kit actually is the Turnoverball gooseneck hitch from B&W.

Gooseneck Specs:

  • Gross towing weight: 30,000 lbs
  • Vertical load limit: 7,500 lbs
  • Ball size: 2-5/16"

B&W Companion Installed in Turnoverball Gooseneck Hitch

With the B&W Turnoverball underbed gooseneck trailer hitch you get the best of both worlds. When you go to tow a gooseneck trailer, the Turnoverball creates a sturdy, dependable connection with your trailer. And when you're done towing, you can stow the ball upside down in the hitch to get full bed access and a clean appearance. When you're ready to tow your fifth wheel trailer, just install the Companion in the ball hole in place of the gooseneck ball and lock the post in place using the built-in handle. You can remove the fifth wheel when you're done towing, leaving your truck bed open once again.

Simple, Custom Installation

This kit is custom designed for your vehicle. The mounting brackets bolt to existing holes in your truck's frame. While some modification is required - you will need to cut a 3-1/2" diameter hole in your bed for the hitch ball and drill holes for the built-in safety chain loops - there is no need to weld onto or to drill into your frame.

Once you have the brackets and center section installed, set up the operating handle. This handle is designed to be accessed from the rear driver's-side wheel well. On the end of the handle is the heavy-duty steel pin that secures the mounting post of the Companion (or the base of the gooseneck hitch ball).

GNRK1384 B and W Turn Over Ball Gooseneck Trailer Hitch

Installation Details BWGNRK1384-5W Installation instructions

California residents: click here

Customer Reviews

Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches - BWGNRK1384-5W

Average Customer Rating:  4.9 out of 5 stars   (15 Customer Reviews)

Install a Companion fifth-wheel hitch in your truck bed with this custom kit. Better than a traditional mounting kit, this setup doubles as a gooseneck hitch when the fifth wheel is removed, and the underbed design allows for full bed access.

2015 Dodge Ram Pickup

Installation in 4 hours might be realistic for a shop, but my old tired bones required a bit more time. Everything lined up and fit my 2015 Ram 2500. The quality of the components are far superior to anything Chinese.

I suggest air tools if you have them, and something to lift the 5th Wheel base into your truck bed unless you feel like a baddass today.

I didn't run into any problems because I read the instructions BEFORE I started. Everything I needed to know was right there!


Love the hitch, and the unobstructed bed when I’m not towing.

2018 Ram 2500

Great product. Fast shipping! e- trailer communication is amazing


Great product with great instructions


Very fast delivery. Excellent product, would have given 5 stars except for the paint or power coat quality was poor along all narrow edges. Really appreciated the installation video.
Overall good experience.

Product continues to work well. Used frequently in the last year.
Ed B - 08/17/2018


great hitch, smooth installation. took awhile to get the bolts to thread into the L brackets, other than that moving the muffler was the worst part. 2018 RAM

2016 Ram 2500

well engineered parts, good instructions. L brackets were difficult to get into place but considering the alternative (lifting the bed), this was a breeze.


Great product,


Excellent this is the third unit i have purchased


Very happy with the products I bought thank you

2015 Ram 2500

Excellent product very easy install would buy again

Awesome product it is my third purchase very simple install
Brian - 02/06/2018


Absolutely the BEST choIce I could have made. This hitch is awesome. The ride is smoothe And I forget I have 12000# 5ver behind me. Highly recommend.


A few hour install on the garage floor. Template that B&W Supplied worked excellent. Very happy overall.


I’ve learned quite a lot since discovering your website. Your instructional videos are excellent. The product I ordered is as advertised and arrived on schedule.



See what our Experts say about this B and W Fifth Wheel Installation Kit

  • Is B and W Fifth Wheel Kit # BWGNRK1384-5W for 2014 Ram 2500 Longhorn Available Without Hitch Ball
    The B and W Fifth Wheel Installation Kit, # BWGNRK1384-5W, for your 2014 Ram 2500 includes the rails, gooseneck hitch head, safety chain loops, and hitch ball. B and W boxes these as a kit and are not available without the the ball.
    view full answer...
  • B and W Turnover Gooseneck Hitch and Companion Hitch Recommendation for a 2014 Ram 2500 Short Bed
    The two part numbers you referenced, # BWGNRK1384-5W and # BWGNRK1384 represent the same actual part. We have separate part numbers for our different fitguides. So if you run your vehicle through the gooseneck fitguide you would see the part # BWGNRK1384 or if you ran it through the fifth wheel fitguide you would end up with the part # BWGNRK1384-5W. Both part numbers are the correct fit for your 2014 Ram 2500 short bed truck though. For a Companion hitch when you are ready you would need...
    view full answer...
  • B&W Gooseneck Hitch for 2017 Ram 2500 with a Hillsboro Flatbed
    Thanks for the picture. I have exactly what you need for your 2017 Ram 2500 Hillsboro flatbed. I recommend the B&W Turnoverball Underbed Gooseneck Trailer Hitch for Flatbed Trucks item # BWGNRK1500. This gooseneck hitch is welded onto your 2017 Ram 2500 and will sit flush with your flatbed once its installed. I have included a picture of what the finished product will look like as well as a review video.
    view full answer...
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  • Availability of Under Bed 5th Wheel Kit for 2015 Ram 2500 with 6-1/2 Foot Bed
    The only underbed installation kit available for your 2015 Ram 2500 with a 6-1/2 foot bed is the B&W Custom Underbed Kit # BWGNRK1384-5W. This is specifically for use with the B&W Companion 5th Wheel Trailer Hitch # BWRVK3400-5W and will not work with your existing Demco Hijacker Autoslide. This is a really nice setup that will provide you with complete access to your truck bed when the hitch is removed. The underbed kit also doubles as a gooseneck hitch if you ever need to pull a gooseneck...
    view full answer...
  • How Heavy is the B&W Companion Sliding 5th Wheel Trailer Hitch
    The B&W Companion Sliding Fifth Wheel Hitch # BWRVK3400-5W weighs about 280 pounds when fully assembled. The head is around 75 pounds and the base is a little over 200 pounds. To install the Companion in your 2017 Ram 2500 use the Underbed Gooseneck Kit # BWGNRK1384-5W.
    view full answer...
  • Fifth Wheel Hitch Recommendation for 2014 Ram 2500 Short Bed That Leaves Bed Empty
    What would serve you best is an under-bed style fifth wheel rail kit. That way you'll get the free truck bed when the hitch isn't installed and you'll get the turning clearance when needed as well. Best option we have for your 2014 Ram 2500 is the B and W Companion Slider part # BWRVK3500-5W and then the rail kit part # BWGNRK1384-5W. When you remove the hitch from the bed you would get a totally empty truck bed.
    view full answer...
  • Does Companion Hitch Fit B and W Turnoverball Gooseneck Hitch for 2016 Ram 2500
    Yes, the B and W Companion Hitch part # BWRVK3500-5W that you referenced is a confirmed fit for the Turnoverball Gooseneck hitch part # BWGNRK1384-5W that you referenced which is a fit for your 2016 Ram 2500. This is a great option for you as it gives you the nicest fifth wheel hitch on the market as well as the ability to easily tow a gooseneck hitch in the future if ever needed.
    view full answer...
  • Aftermarket Puck System For 2015 Ram 2500
    The one system that resembles an OEM puck system is made by reese, but it is not available for your truck. The closest thing I have for you is the B&W system # BWGNRK1384-5W which will work with the Companion 5th wheel # BWRVK3400-5W
    view full answer...
  • Custom Underbed Installation Kit 2015 Ram
    The factory puck system that has been available since 2013 is integrated into the frame and cannot be installed as an aftermarket part. However, there is the underbed kit available for your Ram in the B&W, # BWGNRK1384-5W, that uses the B&W companion hitch, # BWRVK3400-5W.
    view full answer...
  • Which B&W Sliding Hitch for B&W Turnoverball in 2015 Ram 2500 Long Horn Short Bed
    If you've already got the B&W Turnoverball # BWGNRK1384-5W in your 2015 Ram 2500 Long Horn short bed then you'll want to use the B&W Companion Sliding Hitch # BWRVK3400-5W. This is a sliding hitch that will fit in your Turnoverball gooseneck hitch and is a great choice because of the high quality that B&W is known for. I've linked some review and installation videos of these parts for you to check out, as well.
    view full answer...
  • B&W Companion 5th Wheel Trailer Hitch and Kit For 2015 Ram 2500
    I do have an option for your 2015 Ram 2500 6-1/2 Ft bed but the B&W Companion OEM 5th Wheel Hitch for Ram Towing Prep Package part # BWRVK3600 is designed specifically for the Ram Towing Package. Marti, the exact kit you need for the 2015 Ram 2500 is: the B&W Companion part # BWRVK3400-5W and the custom Underbed Gooseneck installation kit part # BWGNRK1384-5W. Since you do not have the puck system for the BWRVK3600 to fit into you would need to install the under bed installation kit for...
    view full answer...
  • Correct B&W Companion Fifth Wheel Hitch for 2014 Ram 2500
    Yes it will! The sliding B&W Companion # BWRVK3400-5W you referenced will fit your 2014 Ram 2500 so long as you already have the B&W Turnoverball # BWGNRK1384-5W installed in your truck bed.
    view full answer...
  • Pivot Arm Adjustment on B&W Companion for 2018 Ram 2500
    The B&W Companion slider fifth wheel hitch part # BWRVK3400-5W fits your 2018 Ram 2500 6-1/2 foot bed without the OEM package with the underbed installation rails B&W part # BWGNRK1384-5W. The Turnoverball does come with the rail kit. When you are not towing you can remove the hitch and stow the Turnoverball upside down in the hole to have complete access to your bed. I can tell you how to measure to the best pivot arm adjustment on your setup. I cannot tell you which position based off...
    view full answer...
    Image 1 for
  • Best Fifth Wheel Hitch Recommendation 2015 Ram 2500 Short Bed without Hitch Prep Package
    The B and W Companion gooseneck hitches like the # BWGNRK1384-5W that you referenced are an excellent rail system for adding a Companion fifth wheel like the Slider # BWRVK3400. The Companion hitches are one of the nicest hitch setups on the market. If you look anywhere online this is one of the highest recommended hitches from the guys who tow a lot. The main portion of the hitch that attaches to the tow vehicle is through the gooseneck hole, but the feet of the hitch on the outsides...
    view full answer...
  • B and W Underbed Gooseneck Hitch Recommendation for 2016 Ram 2500 Short Bed
    As long as your 2016 Ram 2500 6 foot bed does not have the factory air suspension kit we do have a B and W Underbed Gooseneck Hitch. For that you would want the part # BWGNRK1384-5W which fits your truck and then would allow you to use a B and W Companion Slider part # BWRVK3500. If you do have the air suspension we do not have a B and W solution.
    view full answer...
  • Fifth Wheel Hitch Recommendation for 2015 Ram 2500 Short Bed
    The 2015 Ram 2500 Power Wagon is a 2500 short bed truck without the OEM rail kit so to install a fifth wheel hitch you'll first need a rail kit like the B and W Turnoverball rail kit part # BWGNRK1384-5W which is a confirmed fit which will then allow you to install the Companion slider hitch part # BWRVK3400 which will give you the clearance you need when turning and is referred to as the best hitch you can get due to how well it's made and how easy it is to use.
    view full answer...
  • Will the Custom Underbed Installation Kit for a 2018 Ram 2500 Work With B&W Patriot
    The Custom Underbed Installation Kit part # BWGNRK1384-5W which is a fit for a 2018 Ram 2500 will only work directly with the B&W Companion Slider Gooseneck-to-5th-Wheel Trailer Hitch Adapter part # BWRVK3400. The B&W Patriot Slider 5th Wheel Hitch is not compatible.
    view full answer...
  • B and W Companion Fifth Wheel Hitch for 2014 Ram 2500
    B and W has a Companion and Turnoverball hitch solution that works for your 2014 Ram 2500 short bed with the part # BWGNRK1384-5W for the rail kit and the part # BWRVK3400 for the hitch. This does give you a gooseneck hitch ball when needed as well.
    view full answer...
  • Can Reese Signature Series Fifth Wheel Hitch Be installed In 2016 Ram 2500
    Unfortunately, there is no option to install the Signature fifth wheel hitch on your 2016 Ram 2500. If you are looking for an underbed system for your Ram we do carry the B&W Companion 5th Wheel Trailer Hitch, part # BWRVK3500-5W with a custom underbed installation kit. The installation kit is part # BWGNRK1384-5W. This kit doubles as a gooseneck hitch and includes the rails, hitch head, safety loops and hitch ball. You can just remove the hitch ball and the Companion fits right in...
    view full answer...
  • Will Curt X5 Adapter Fit a 2015 Ram 2500 Short Bed with B&W Turnover Ball Gooseneck Trailer Hitch
    I have a better solution for you because the X5 adapter # 16310 cannot be properly secured in a 2015 Ram 2500 that has the B&W Turnover Ball gooseneck trailer hitch. What you can do is install the gooseneck hitch, # BWGNRK1384-5W, and then use the Companion hitch # BWRVK3500-5W. This set up only works if the truck has rear coil spring suspension. I have linked videos on both parts for you.
    view full answer...
  • Recommended B&W Gooseneck/5th Wheel Towing Set-up for 2015 Ram 2500
    A PullRite 5th wheel hitch made for industry-standard rails (ISRs) will not fit in the B&W Turnover Ball Gooseneck hitch/install kit. The B&W gooseneck kit that fits your 2015 Ram 2500 with 6-foot bed and no factory rail kit is part # BWGNRK1384-5W. This kit fits trucks with rear coil springs and it is compatible with the OEM air suspension system. With this installed you can tow your gooseneck trailers and when it's 5th wheel time simply drop in B&W's Companion Slider Hitch # BWRVK3400-5W...
    view full answer...
  • Fit of B&W Turnover Ball Gooseneck Hitch/Companion 5th Wheel Hitch on 2016 Ram 2500 Power Wagon
    Absolutely! The B&W Turnover Ball gooseneck hitch, part # BWGNRK1384-5W is compatible with your truck. The Turnover Ball hitch would provide the mount for the excellent # BWRVK3400-5W B&W Companion sliding 5th wheel hitch which is recommended for short bed trucks. Your truck already has the mounting rails under the bed for the Turnover Ball hitch, so the # BWGNRK1384-5W will mount right up, after cutting the 3-1/2 inch hole through the bed as shown in the linked instructions and install...
    view full answer...
  • B&W Companion 5th Wheel Hitch for 2017 Ram 2500 with B&W Turnover Ball Gooseneck Hitch
    The B&W Companion 5th wheel hitch, part # BWRVK3500-5W will certainly work. It's designed to install into a B&W Turnover Ball gooseneck hitch to provide a 5th wheel hitch. B&W 5th wheel hitches are what we recommend most because of the high quality and the ride quality they offer. If you don't already have one, the B&W Turnover Ball fit for your 2017 Ram 2500 is part # BWGNRK1384-5W. If you need a 7-way trailer connector installed in the truck bed, use # 20110. I've linked to some installation...
    view full answer...
  • Will B&W Companion Slider Work on 2016 Ram 2600 With Large Tires
    It is possible with any 5th wheel hitch that tires as large as your means your set up won't be level. But really that depends on your pin box height and if you can adjust it. The B&W Companion slider has a hitch height that can be as low as 17 inches, so you need to weigh that consideration against the height of your pin box. It is likely that you will need to make adjustments to your pin box height or raise your 5th wheel to make sure you tow level. To use the B&W set up on your 2016...
    view full answer...

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