bing tracking image
  1. Fifth Wheel Installation Kit
  2. B and W
  3. Below the Bed
  4. Custom
Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches

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

Our Price: $699.00
Fifth Wheel Installation Kit

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Shipping Weight: 136 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
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. 1-800-940-8924 to order B and W fifth wheel installation kit part number BWGNRK1020-5W or order online at etrailer.com. Free expert support on all B and W products. Great prices and Fastest Shipping for Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches. Fifth Wheel Installation Kit reviews from real customers.
  • All Info
  • Reviews (38)
  • Q & A (0)
  • Photos

2024 Chevrolet Silverado 3500 - Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches

  • Below the Bed
  • B and W
  • Custom

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.


Features:

  • 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
    • 4" 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 4" 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).



GNRC920 B and W Turn Over Ball Under-Bed Gooseneck Trailer Hitch - 30,000 lbs

GNRM1020 B and W Turn Over Ball Gooseneck Custom Installation Kit for Chevy/GMC

Item # BWGNRK1020-5W

Installation Details BWGNRK1020-5W Installation instructions

California residents: click here


Customer Satisfaction Score:


Customer Reviews

Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches - BWGNRK1020-5W

Average Customer Rating:  4.9 out of 5 stars   (37 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.

by:

The best of the best. I've used them all. This is a game changer. I can't even begin to explain how much I love this hitch. I used to order all my trucks with the factory puck/gooseneck system. Not anymore. Much cleaner look with the B&W. It's worth the install effort to have a B&W system by far.



by:

I bought a 2020 Silverado 2500, it had a curt gooseneck hitch, it was a pain to remove took like 2 hours to take out, it’s not as well made as the bw hitch glad I put it in, it is well made and easy to install, no problems to install. Thanks for the great product.



by:

Have not installed yet but all the hardware is very heavy duty and painted with no defects looks good



by:

I am happy with the products. I do like the new set up B&W came up with for the newer trucks. One thing I was not happy with was when I ordered the Turnover Ball Hitch along with the Companion 5th wheel hitch for my customer, I was shorted the center section for the Turnover ball hitch. Thankfully my customer was understanding, just put a huge delay in getting it installed and came down to the wire before my customer left for their trip.



by:
2022 Chevrolet Silverado 2500

Had a little hiccup on the delivery, but Tiffany at e trailer took care of everything for me. Got it squared away very very fast. so a big thank you to each trailer for taking care of me.



by:

After having this hitch installed in our truck, we have towed our 5th wheel camper all over the US with no problems.



by:

Easy to order and fast on delivery. Definitely heavy duty!



by:

Very well made, and exceptionally rugged. I had this installed in my 2022 GMC Sierra 2500 HD by a local spring shop that works primarily with heavy commercial trucks, as my truck did not have a 5th Wheel/Gooseneck package. They were very impressed with construction, fit, finish and ease of installation. I also purchased the B&W Companion 5th Wheel hitch to go along with it, to tow my 14k lbs. camper. I have just completed a 1200 mile trip towing camper from Wisconsin to northern New England, and I was very pleased with the performance of both components.



by:

Received this Underbed Installation Kit, the quality of the hardware was perfect! The reason I gave it a 4-star review vs 5-star was the documentation. We had to go to the Website to find the Step-by-Step installation instructions. It would also be VERY helpful if they would BOLD the Hand Tighten Only stuff to ensure this isn't missed. We tightened several of the bolts and found out later these needed to be loosened until final assembly.



by:

Fit is perfect and just as advertised, instructions were complete and very detailed



by:

I purchased this unit because I wanted to keep the bed as clean as possible when not towing. After getting a quote for installation I decided to try it myself. It went very well. Recommend 2 people for installation because it is heavy. Went in with little difficulty. Would recommend highly.



by:

Great hitch
Wouldn’t buy any other brand
easy install
It’s versatile to use gooseneck or put in 5 th wheel hitch



by:
2020 Chevrolet Silverado 2500

Product is excellent and etrailer.com is even better. I wouldn't buy anything but a B&W and every time I do buy etrailer has it here in days. This is my 3rd hitch from them and every time has been flawless. Very happy.



by:

Great product! Great website! Installing this fifth wheel kit was not for the faint of heart but with installation videos and clear, easy to understand instructions. We got ‘er done! Shipment came 3 days earlier than expected



by:

Very quick shipping



by:

Straight forward install, great quality. Lots of videos for installation instructions to let you know how to do it.



by:
2021 Chevrolet Silverado 3500

Shipping was fast. Fairly easy to insta ll



by:
2022 Chevrolet Silverado 3500

The instructions are done well, and the install videos are a nice touch. Cant beat the prices.



by:

heavy but box arrived in decent shape and product had no scratches. Installation was easy but you need two people or a lift.



by:
2022 Chevrolet Silverado 2500

I like the videos on installing what your purchasing.



by:

Simple installation, great quality, glad to have it done.



by:
2021 Chevrolet Silverado 2500

Somenof the bolts were dented with being in the same plastic bag. And some of the paint was chipped off.



by:



by:
2022 Chevrolet Silverado 2500

fast to fill order and ship.



by:
2020 Chevrolet Silverado 2500


25
38
Show More Reviews

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

  • Is A Sliding 5th Wheel Hitch Needed For A 2022 GMC Sierra 3500 Long Bed?
    You will not need a sliding hitch like the B&W Companion # BWRVK3770 you currently have. A sliding hitch is needed on a short bed truck because of the positioning of where the hitch will be mounted, in relation to the cab of your truck and it being too close to each other. The slider would slide back when you make tight turns while towing your 5th wheel trailer, that way there will be no impact to your truck cab. If your 2022 GMC Sierra 3500 has the OEM prep (pucks) package, you can use...
    view full answer...
  • 2022 GMC Sierra 2500 Recommended Underbed Kit to Tow 5th Wheel Trailer
    The underbed hitch system I recommend for your 2022 GMC Sierra 2500 is the B&W Gooseneck Hitch # BWGNRK1020-5W that can be paired with the Sliding # BWRVK3400-5W or Stationary # BWRVK3500-5W B&W Companion 5th wheel hitch since there isn't a standard aftermarket puck system for your truck. We do have the Demco kit # DR37FR which looks more similar to the OEM puck kit, but Demco designed this to only work with their 5th wheel hitches as a direct connection so you'll get a lot more use out...
    view full answer...
    Image 1 for
  • Best 5th Wheel Hitch For a 2020 Chevy Silverado 2500HD LTZ Short Bed
    The best fifth wheel hitch for your 2020 Chevy Silverado 2500HD LTZ Short Bed is the sliding version of the B&W Companion because of its powerful jaws and cushioned bushings which combine to give you the quietest, more enjoyable towing experience available. You did not say if you had the factory 5th wheel prep package from GM or not, so here is what you need depending on if you have that: - 2020 Silverado 2500HD WITH Factory Pucks: B&W Companion OEM 5th Wheel Sliding Hitch for Chevy/GMC...
    view full answer...
  • How To Use Reuse B&W Companion 5th Wheel Hitch On 2021 Chevy Silverado 2500
    If the 2021 Chevrolet Silverado 2500 has the factory prep package then all you'd need to reuse the B&W Companion is a new base, the fixed version is part # BWRVB3710 and the slider version is part # BWRVB3775. If it does not have the the factory prep package you'd need the B&W Custom Underbed Installation Kit part # BWGNRK1020-5W and then a new base, the fixed version is part # BWRVB3500 and the slider version is part # BWRVB3405. There is no Reese Elite Underbed Rail Kit for a 2021 Chevrolet...
    view full answer...
  • Best Underbed Rail System Fifth Wheel Hitch Available For 2020 GMC Sierra 2500 Short Bed
    I do have an option for you but there is not an aftermarket under bed 4 puck system like what you are wanting for the 2020 GMC 2500 6-3/4 ft bed. I recommend to use the B&W Companion 5th Wheel Trailer Hitch w/ Slider part # BWRVK3400-5W with the Custom Under Bed Installation Kit part # BWGNRK1020-5W. The B&W under bed installation kit doubles as a goose neck hitch so it gives you a single hole in the bed for the B&W Companion to attach. When you are not using the Companion you can use...
    view full answer...
    Image 1 for Image 2 for Image 3 for
  • Best Fifth Wheel Hitch for 2020 Chevy Silverado 2500
    The fifth wheel hitch I most often recommend is the Companion by B&W, because of how well constructed, durable and easy to use it is. The Companion uses an extremely strong 1 inch thick hitch jaw that tightly holds the fifth wheel king pin. This provides for a great ride, unlike some of the entry level hitches where the king pin can rattle around in the hitch, transferring each one of those bangs and crashes to the tow vehicle. The actual hitch you need will depend on whether your hitch...
    view full answer...
  • Can You Add Underbed 5th Wheel Pucks on a 2021 Chevy Silverado 2500
    I do have underbed systems for a 2021 Chevrolet Silverado 2500 but there are none with the factory pucks. Instead, I recommend the Custom Underbed Installation Kit part # BWGNRK1020-5W which is compatible with the B&W Companion 5th Wheel Trailer Hitch part # BWRVK3500-5W. This combo uses a single connection so you can easily swap between fifth wheel towing, gooseneck towing, or a clean bed. The B&W Companion is one of the best hitch options on the market with easy to remove head, thick...
    view full answer...
  • Recommended Under Bed 5th Wheel System for a 2023 Chevy Silverado 2500 w/out the Prep Package
    We have something similar but there is no way to put a factory prep package in your 2023 Chevy Silverado 2500. I recommend the Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches item # BWGNRK1020-5W. This underbed system fits both the 6-3/4' and 8' bed lengths of the 2023 Silverado 2500. It has a 30,000 lbs capacity and provides you with a square gooseneck receiver capable of mounting a B&W Companion hitch in. There are two options for Companion 5th wheel hitches...
    view full answer...
  • Best 5th Wheel Hitch for 2020 GMC Sierra 3500
    If the 2020 GMC Sierra 3500 has the factory in-bed prep package then the best fifth wheel hitch option is the B&W Companion OEM 5th Wheel Hitch part # BWRVK3715. This is a direct drop-in hitch with 25,000 lb weight capacity. It has thick jaws for increases security and a cam action handle for easy uncoupling. If you don't have the factory in-bed prep package you can still use this hitch but you will need another version, the B&W Companion 5th Wheel Trailer Hitch part # BWRVK3500-5W with...
    view full answer...
  • 5th Wheel Hitch With Under Bed Mounts for 2022 Chevy Silverado 2500 Short Bed
    We've got a few under-bed rail mounted options available that wouldn't require the bed rails sitting in the truck bed. If you don't mind a manually sliding hitch, the 20K capacity B&W Companion 5th wheel hitch, part # BWRVK3400-5W would be an outstanding choice. The hitch uses 1 inch thick jaws and a dampened hitch head, both of which help minimize the rattling and banging felt in the passenger cab of the truck. The hitch would mount using the B&W Turnover Ball Gooseneck Hitch, part #...
    view full answer...
  • Can Base of Sliding 5th Wheel Hitch be Swapped Out for Long Bed of 2020 GMC Sierra 3500
    In general you can definitely swap out the base of a 5th wheel hitch so that you can change it from a stationary option to a sliding hitch. There are a handful of options for your 2020 GMC Sierra 3500 that hinge on whether you have the OEM prep package or not. I personally really like the B&W Companion 5th wheel hitches because they feature 1" dual jaws and a cam-action latching handle which combined ensures that your king pin sits solid in the hitch head but also allows you to easily release...
    view full answer...
  • Does Truck Bed Need to be Removed to Install B&W Companion Underbed Kit # BWGNRK1020-5W
    When installing the Custom Underbed Installation Kit # BWGNRK1020-5W for the B&W Companion 5th Wheel Hitch # BWRVK3400-5W on your 2020 Chevy Silverado 2500 the truck bed does not need to come off. In the installation manual it just states that the installer needs to be positioned under the truck bed in the area of the rear axle. Lifting the truck will make this process easier. To prepare the truck for installation the spare tire and shield, along with the heat shield above the rear axle...
    view full answer...
    Image 1 for
  • Recommended Underbed 5th Wheel Towing Kit for 2021 GMC Sierra 2500 Short Bed without OEM Pucks
    I may have a solution for you, but there are currently no OEM style prep package kits available for your 2021 GMC Sierra 2500. Since you would likely need a hitch that has legs designed for the newer GMC prep package anyways, if you don't already own one, you might want to consider the B&W Turnoverball System # BWGNRK1020-5W. The Turnoverball system will give you the same clean truck bed that you would get with the GMC OEM prep package. The hitch you would need to work with the Turnoverball...
    view full answer...
  • Best 5th Wheel Hitch for 2020 Chevy Silverado Short Bed without Factory Prep Package
    The best 5th wheel hitch available for the new 2020 Chevy Silverado 2500HD with the 6.9 foot bed and without the factory prep package is the B&W Companion Slider # BWRVK3400-5W along with the Installation Kit # BWGNRK1020-5W. The B&W Companion line of hitches are considered by many to be the absolute best on the market. This is in large part due to its heavy-duty construction that includes 1 inch thick dual jaws that provide an incredibly secure connection to the trailer that not only...
    view full answer...
  • Fifth Wheel Hitch and Installation Kit For 2020 Chevy Silverado 2500
    I do have an option for you but there are currently not any custom fifth wheel rail mounting brackets available for the 2020 Chevy Silverado 2500 (September 2019) I recommend to use the B&W Companion 5th Wheel Trailer Hitch part # BWRVK3500-5W and custom underbed installation kit part # BWGNRK1020-5W. The Companion is considered one of the highest quality fifth wheel hitches out there. The underbed installation kit will double as a heavy-duty turnover gooseneck trailer hitch as well....
    view full answer...
  • What Capacity 5th Wheel Hitch Is Needed To Tow A 16k 2008 Heartland Big Horn 5th Wheel
    The safe ruling for weight capacities is to only use 80-85% of your total capacity so the B&W Companion OEM 5th Wheel Hitch w/ Slider # BWRVK3775 with its 20k capacity would be enough for your 16k 2008 Heartland Big Horn fifth wheel. The bushings shouldn't need to be replaced as long as you routinely grease the bushings with some white lithium grease # L11354. This hitch is designed for the oem puck system, if you don't have pucks in the bed of your Sierra then you'll need to install...
    view full answer...
  • Fifth Wheel Hitch Recommendation for 2020 GMC Sierra 3500HD
    Congrats on your new 2020 GMC Sierra 3500 HD! You didn't mention the size of your bed, or if your Sierra has the factory prep package or not. Generally trucks that have less an 8ft beds can have issues with maneuvering at slow speeds when towing a fifth wheel trailer. A slider hitch allows the hitch and trailer to slide back toward the rear of the bed creating enough space between the cab and the trailer to allow less restrictive turning. Regardless of the configuration of your truck I...
    view full answer...
  • Recommended FIfth Wheel Hitch For A 2022 Chevrolet Silverado 3500
    When installing a fifth wheel hitch on your 2022 Chevrolet Silverado 3500 I recommend The B&W Companion 5th Wheel Trailer Hitch w/ Slider - Dual Jaw - 20,000 pounds # BWRVK3400-5W and The Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches # BWGNRK1020-5W. This hitch is only confirmed to fit the 6-1/2 foot bed. The Companion Hitch has a weight capacity of 20,000 pounds and has a vertical load limit of 5,000 pounds. The hitch has 3 height settings 17 inches to...
    view full answer...
  • Fifth Wheel Options for a 2021 Chevrolet Silverado 2500 Pulling a Trailer w/ a Rotating King Pin
    We definitely have a few options available for this situation. First and foremost, sidewinder style pin boxes cannot be used with the B&W Companion hitch # BWRVK3500-5W due to how they connect to the under-bed rails or gooseneck, like the # BWGNRK1020-5W. It causes too much movement and wear to the connection points, which could cause failure. If you wanted to stick with the under-bed style, you could also use the # BWGNRK1020-5W with a Reese Goose Box King Pin # RP85FR. This would replace...
    view full answer...
  • Correct B&W Turnoverball Gooseneck and Companion 5th Wheel Hitch for a 2021 Chevy Silverado 2500
    The correct Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches for a 2021 Chevrolet Silverado 2500 (All Models) is part # BWGNRK1020-5W which will then allow you to use the B&W Companion 5th Wheel Trailer Hitch part # BWRVK3400-5W or part # BWRVK3500-5W.
    view full answer...
  • Best Sliding 5th Wheel Hitch For Clean Bed on 2020 Chevy Silverado 2500 With or Without Puck System
    These are really good questions and we can definitely set you up with the right 5th wheel hitch for your 2020 Chevy Silverado 2500 short (also called standard) bed, but to quickly answer your question about underbed brackets, there aren't any that are universal (as nice as that would be), they are only designed to be used with specific 5th wheel hitches. That said, you do have a number of different options, which I'll list for you and then make my recommendation. 5th Wheel Hitch for 2020...
    view full answer...
    Image 1 for
  • Recommended B&W Companion Slider for a 2020 Chevy Silverado 2500 w/ Turnover Ball Gooseneck Hitch
    Since your 2020 Silverado 2500 has the Custom Underbed Installation Kit item # BWGNRK1020-5W you can easily add a B&W Companion 5th wheel hitch. Because you have the shorter 6-3/4' bed I recommend the B&W Companion 5th Wheel Trailer Hitch w/ Slider item # BWRVK3400-5W. The Companion Slider has a 20,000 lbs capacity and will give you 12" of travel for making tight turns and backing. The Companion's 1" thick dual jaws will give you a 360-degree jaw to kingpin contact. This system minimizes...
    view full answer...
    Image 1 for
  • Do I Need a Fifth Wheel Slider for Towing a Grand Design Reflection 31MB with a 2020 Silverado 2500?
    There are a lot of great options for fifth-wheel hitches for your 2020 Silverado 2500. You might be able to get away with using a fifth-wheel hitch without the slider option, but for vehicles with a short bed, it is almost always recommended. Without it, you could have difficulty maneuvering the trailer on tight corners and could even damage your truck and camper if not careful. The B&W Fifth Wheel Hitch # BWRVK3770 you were looking at actually does not fit your vehicle. Instead, I recommend...
    view full answer...
  • Recommended 5th Wheel Rail Kit That Leaves Clean Bed When Hitch Is Not Installed
    I have a solution for you, but installing and then removing the bed rails after each use is going to cause undue stress on the hardware components on the bed rails; these components are designed to be installed once and discarded after installation, so there isn't going to be a rail kit that can be used in this manner. For this reason, I can't recommend using a kit with above bed rails like the B&W # BWRVK2505, which provides industry standard 5th wheel rails to mount a hitch in and instead...
    view full answer...


< Previous
123. . .4



Do you have a question about this Fifth Wheel Installation Kit?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Updated by:
Michael B
Employee Matthew E
Updated by:
Matthew E
Employee Zach D
Video by:
Zach D
Employee Jonathan Y
Video by:
Jonathan Y
Employee Jacob H
Video by:
Jacob H
Employee Thomas T
Video by:
Thomas T
Employee Shane H
Test Fit:
Shane H
Employee Conner L
Test Fit:
Conner L
Employee David F
Test Fit:
David F
Employee Ryan G
Test Fit:
Ryan G
Employee Kristina F
Written by:
Kristina F

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.