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  1. 5th Wheel Hitch
  2. Demco
  3. 21000 lbs GTW
  4. Aftermarket Below Bed Rails
  5. Sliding 5th Wheel
  6. Premium - Single-Hook Jaw
Demco Autoslide 5th Wheel Trailer Hitch for Chevy/GMC - Single Jaw - Underbed - 21,000 lbs
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Demco

Demco Autoslide 5th Wheel Trailer Hitch for Chevy/GMC - Single Jaw - Underbed - 21,000 lbs

$2,611.09
5th Wheel Hitch

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No more getting in and out of your truck to mess around with a manual slider. This hitch slides automatically to give you 14" of additional clearance for tight turns whenever you need it. Custom underbed installation kit included. 1-800-940-8924 to order Demco 5th wheel hitch part number DM43SV or order online at etrailer.com. Free expert support on all Demco products. Great prices and Fastest Shipping for Demco Autoslide 5th Wheel Trailer Hitch for Chevy/GMC - Single Jaw - Underbed - 21,000 lbs. 5th Wheel Hitch reviews from real customers.
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Demco 5th Wheel Hitch

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • Effortless Cornering in Tight Spots: Automatic slider gives 14" of travel so you never need to exit the cab to release a manual slider.
  • Secure, Quiet Connection: Wraparound single-piece jaw and 3/4" locking bar hold the king pin tight to reduce rattle and chucking.
  • Smooth Towing Over Uneven Roads: Double-pivot cushioned head with polyurethane dampeners absorbs road shock and noise.
  • Set the Right Level for Your Rig: Adjustable hitch height at 15-1/2", 16-3/4", or 18-1/4" for proper trailer alignment.
  • Quick Bed Access When Unhooked: Rail-free underbed mount removes easily for full truck bed use.
Made in USA

Features to know about

Never Get Out to Move a Manual Slider Again: Automatic 14" Travel for Tight Turns

This hitch solves the biggest short-bed towing frustration—having to hop in and out of the cab to release a manual slider. With a built-in rack-and-pinion gear system, it automatically glides back up to 14" toward the tailgate when you turn, then slides forward again as you straighten out. The motion is smooth and controlled, giving you the clearance needed for slow-speed maneuvering in tight campgrounds or parking lots. You just turn the wheel and it does the work for you.

Demco Hijacker Autoslide fifth-wheel hitch base showing rack-and-pinion gear system for automatic sliding in short-bed trucks

Demco Hijacker Autoslide fifth-wheel hitch capture brackets securing trailer pin box for stable towing

Solid, Quiet Connection on Every Trip: Single-Piece Wraparound Jaw and Locking Bar

The wraparound, single-hook jaw completely surrounds the king pin for 360-degree contact, creating a tight, rattle-free hold that feels solid when you pull away. A 3/4" thick steel locking bar reinforces the connection and automatically locks when the jaw closes, so you know your trailer is secure. This setup minimizes chucking and metal clank while towing heavy fifth wheels up to 21,000 lbs GTW and 5,250 lbs vertical load limit.

Close-up of Demco Hijacker Autoslide fifth-wheel hitch wraparound jaw and locking bar securing trailer king pin

Smooth Ride Over Rough Roads: Double Pivot with Polyurethane Dampeners

The double-pivot head tilts front to back and side to side to help absorb bumps and uneven pavement. Three built-in polyurethane dampeners cushion movement even further, cutting down on noise and road shock through the hitch. You’ll notice the difference pulling over long highway runs or when easing into uneven sites—the ride feels more stable and controlled.

Easy Setup with Adjustable Height: UMS Underbed Mounting Kit Included

The included custom underbed mounting kit keeps your bed clear when you’re not towing and makes installation straightforward. The hitch base drops into four receivers and locks in place with turn handles secured by safety pins. You can choose from three height settings—15-1/2", 16-3/4", or 18-1/4"—to level your trailer setup and maintain proper clearance over your truck bed rails. When it’s time to haul something else, just unlock the feet and lift the hitch out for full bed access.

Specs

Compatibility and Application

  • Designed for use on: 6-1/2' truck beds
  • Fits: standard pin boxes 12" - 14" wide
  • Locking plates (sold separately) are required for use with: Glide Ride, Mor Ryde, Trailair Tri Glide, Trailair Flexair, Rota Flex, Lippert Road Armor, and 5th Airborne pin boxes

Weight and Capacity

  • Gross towing weight: 21,000 lbs
  • Vertical load limit: 5,250 lbs

Dimensions

  • Travel: 14" front to back
  • Hitch height settings: 15-1/2", 16-3/4", and 18-1/4"

Warranty

  • Limited warranty: 5-Year

Note

  • This fifth-wheel trailer hitch is not compatible with Sidewinder or Revolution king pins. Do not use any device that changes the pivot point of your trailer's king pin with this hitch.

8550037 Demco Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Underbed - 21,000 lbs

6004 Demco Under Bed Mount Adapter Plates for Hijacker Auto Slide 5th Wheel Trailer Hitch

6107 Demco Hijacker Head Assembly for Auto Slide 5th Wheel Trailer Hitch - 21,000 lbs

8551010 Demco Hijacker UMS Under Bed Rail Frame Bracket Kit

Replaces Demco DM8551002 and DM8551003

Item # DM43SV

Installation Details DM43SV Installation instructionsAlternate Instructions DM43SV Installation instructions



Video of Demco Autoslide 5th Wheel Trailer Hitch for Chevy/GMC - Single Jaw - Underbed - 21,000 lbs
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Mount: Demco Autoslide 5th Wheel Trailer Hitch for Chevy/GMC on a 2018 Chevrolet Silverado 2500

Hi there Silverado owners. Today on our 2018 Chevrolet Silverado 2500 we're going to be installing Demco's Underbed Rail Installation Kit for the Demco Hijacker 5th Wheel or Gooseneck. If have a gooseneck trailer, the underbed rail kit will also work with Demco's Hijacker Gooseneck Hitches. This underbed rail kit is going to allow you to install a Demco 5th wheel or a gooseneck hitch on your Silverado.With your new 5th wheel or gooseneck hitch installed you can haul that toy hauler, or 5th wheel trailer that you've been wanting to haul, or you can go ahead and put it to work out at the job site. The rails will work with any Demco Hijacker 5th wheel or gooseneck hitch. You'll want to make sure you pick the appropriate hitch for your needs.One of the things that I really like about this kit is that it installs underneath your bed so when you take your 5th wheel or gooseneck out you have a nice clean look.

Unlike raised rails that will stick up above your bed.I also like how easy it is to install. You use the existing holes in your frame so there's no drilling required, which really cuts down on the install time and the amount of fatigue you're going to have putting it in.Another thing I really like about this kit is that it'll allow you to use the Demco Hijacker 5th wheel, which works out great for tighter turns than you'll get with other ones. Especially if you have a short bed truck due to it's auto slide feature.We'll begin our installation in the bed of our truck by marking out the locations where we're going to drill to install our underbed rails. These measurements are going to vary depending on the length of the bed of your truck so you'll want to closely look at those measurements and mark it out like we've got here. You'll find specific measurements for your truck in your instructions.Well now I need to drill four holes using a two-inch hole saw.

We're going to do it at each corner where we marked. You can see this in the diagram in your instructions. We'll now repeat that for the three remaining holes. With all of our holes drilled out we can clean up the metal shavings now. Then we'll use some clear coat to prevent any rust and corrosion around our exposed metal where we drilled.

You can use some general purpose cleaner to clean off any of the markings that you made when determining where your hole location should be.Now that we've completed all the cutting we need to do in the bed, we can begin mounting our underbed rails. We're going to start with the side rails that are going to mount onto our frame here. Your rails are going to be labeled. We're on the passenger side. We've grabbed our passenger side side rail here.

We'll be using four of the longer bolts that come in your kit with hex heads. We'll then prepare these by placing lock washers and flat washers on them. We'll have four like this, for each side, prepared to install the rail onto the side of the frame by setting it on there and matching up the holes that's already existing in your frame, with the holes on our side rail. You'll see it's already got weld nuts in it. You simply take your bolt, slide it through and thread it into the frame. We're going to do this with the remaining three holes that have weld nuts. We'll repeat this on the other side.For our third holes that don't have weld nuts, we'll use the fish wire provided in the kit. We're going to go through the hole until it comes out the other side of the frame. You might have to finagle it around to get it through the other side. Then on the other side of your frame, we're going to slide a spacer over our fish wire. Then thread one of the carriage bolts, that come in the kit, onto the fish wire. First you'll feed in your spacer, then your bolt, then we'll just pull them through till it comes out the other side. Once you've got it pulled through, we'll place a nut on this side. We're going to repeat this with the other hole on this side and the two on the other side.You'll receive blue Loctite in your kit. You want to make sure you put some of that on all of your bolts.Next we'll be sliding our cross rails from one side of the frame across to the other but in order to get them to fit you are going to have to cut out a small section here. You don't need to cut it completely out. We're actually just going to cut it straight up. We're just going to go up like this. We're going to just be doing this around the section where you see the slits in your side rail. You want to make sure it's wide enough to fit your cross rail in. It's about three and a half inches. If you cut it there you could check to see if it'll fit. You may need to notch the sheet metal here at the bottom as well, in order to get it to fit.Now if it does get tight when pushing it in, you may need to loosen the bolts to your truck bed to get the extra clearance or if it's really close, like ours is, you could just take a piece of wood or a rubber mallet and tap it in. We're going to do the exact same process for our front rail. With both of our rails in place we can take the hardware that comes in our kit. We're going to be using the shorter large diameter hex head bolts with a flat washer on it. This is going to slide up through our slide rail. We're going to place a spacer plate underneath the rail. This has got to go through the front most hole, through the side rail, through your spacer plate and then into your cross rail. On the top we're going to place a nut. We're going to repeat that for the three remaining holes for both of your cross rails.We'll now tighten down all of our hardware using a one-inch socket. You may need a one-inch wrench to hold the nuts on some of them. Before you torque everything down, it's not a bad idea to take your 5th wheel, set it onto your base rails, to make sure that it's going to line up properly. If everything then you can go back and torque all the hardware to the specifications found in your instructions. If your 5th wheel doesn't fit you may need to loosen the hardware and slightly shift the rails until it lines up. Now with your rails torqued down you can install your Demco 5th wheel or gooseneck and hit the road.That completes our installation of Demco's Underbed Rail Installation Kit for the Demco Hijacker 5th Wheel and Gooseneck on your 2018 Chevrolet Silverado.

Ratings & Reviews

4.5

1551 reviews
5 Stars
(1244)
4 Stars
(199)
3 Stars
(48)
2 Stars
(24)
1 Star
(36)
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by:
Arrived right on time, Sales associate very knowledgeable and completed my order with Ease.
by:
2007 Dodge Ram Pickup
This hitch has been used daily since i purchased it. I deliver fifth wheel travel trailers all over the country. This hitch has worked flawlessly from day one. This hitch is one of the only products that I've ever bought that is exactly what it was described to be. Im not one to do reviews, so the fact that im doing this one , in itself, says a lot about the quality of your product. The design and looks are much better than any other hitch ive seen. It just looks better in the truck bed than others do.
by:
Instructions left alittle to interpretation when it came to hitch height in the bed of the truck. For a f350 super duty it is the medium set up. Save you some time and effort. Other then that it looks great and will be testing it out this weekend.
by:
2013 Ford F-250 and F-350 Super Duty
Great hitch for a short bed truck thanks etrailer
by:
After a year, I still like my Demco autoslide. It works great. I have pulled my trailer quite a few times and have had no issues at all. I know quite a few people that pull 5th wheels and one actually went out and purchased a autoslide after watching mine work.
by:
The instructions provided with the hitch were very detailed and provided enough information for me to install it myself. I love having the mounting rails below the bed. the auto slide worked flawlessly. For the winter I left the hitch coupled with the trailer to keep my bed clear.
by:
Hitch works great. Had some issues using it when I first got it with putting the pin to lock down the handle but its worked much better lately. The hitch is heavy so I leave it in the back of the truck. Wish I could remove it so it doesn't get weathered.
by:
Merchandise arrived in good condition. Nothing missing. The shipping carton was in terrible condition. It was torn open from shipping, however nothing was missing or damaged . The product will fill my needs to replace the above bed rails that don't leave a clean bed when fifth wheel is removed. This will fill the bill. Thanks to Etrailer this will work perfectly for my Demco hijacker fifth wheel. Shipment was quick delivery.
by:
Kit made for my rig and fit as described. Installation a little on the difficult side for your typical DIY'er.
Kirk C. profile picture

Kirk C.

7/26/2020

The under bed kit is the best. Having the truck bed useful when not traveling is great. I use a small electric hoist and casters for lifting and moving so the weigh is no problem. Installation was a little on the difficult side but any experienced DIYer can handle it.

by:
2017 GMC Sierra 2500
First package was destroyed in shipping, all hardware was missing, called etrailer forgot her name ( sorry ) very polite. she ordered all the correct hardware needed and had it shipped out. Except for the shipping was very pleased with etrailer.
by:
Hitch looks great and functions great as well. Installation could’ve been smoother due to the installation instruction measurements being slightly off. Look at finding hole caps that are 3” instead of two and drilling the larger hole.
by:
Hitch sucks pain in the assembly to connect and disconnect.
by:
This product is nice but doesn’t line up with OEM placement of pucks.
Sierra K. profile picture
Etrailer Expert

Sierra K.

8/23/2021

That is because this product only fits vehicles without The OEM Prep Package. You want something like this: Item # DM6194.

by:
2017 Dodge Durango
great hitch for my customers new truck to pull his new Durango 5th wheel!

Fast Delivery as well

Always RV
Mesa Az
by:
2018 Chevrolet Silverado 3500
Once I mounted everything and figured out I had to switch passenger and drivers brackets everything was fine it worked out ok
by:
Great functional hitch. Poor powdercoating though (mostly flaking off) with quite a bit of rust after only a year.
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It arrived in two days. Great delivery.
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2016 Chevrolet Silverado 2500
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2012 Chevrolet Silverado
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Show More Reviews

See what our Experts say about this Demco 5th Wheel Hitch

  • How to Install the Demco 18K Hijacker Autoslide 5th Wheel Trailer Hitch on a 2011 GMC Sierra 2500
    In order to mount the Demco 18K Hijacker Autoslide 5th Wheel Trailer Hitch part # DM8550022 in the bed of your 2011 GMC Sierra 2500 you will need to use the Underbed Rail and Installation Kit for Demco Hijacker Hitches part # DM8551010. The Replacement Side Plates for Demco Hijacker Autoslide 5th Wheel Trailer Hitches part # DM6004 that you referenced is designed to allow the above bed version of the Demco 18K Hijacker Autoslide 5th Wheel Trailer Hitch part # DM8550034 to be used with...
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  • What Does Demco Hijacker Autoslide and Rail Kit for 2019 Chevy Silverado 3500 Weigh
    The combined weight of the Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Underbed # DM8550022 and the rail kit part # DM8551010 that fits your 2019 Chevy Silverado 3500 short bed is 374 lbs. You should note that this does not count against your payload as that is the weight capacity of the truck bed whereas this attaches to the truck frame directly for supporting the weight.
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  • 7-Way Trailer Wiring Connector for Bed of 2016 GMC Sierra 3500
    Sounds you are referring to 7-way wiring ran to the very rear of the truck near the bumper. So what you would need to install a 7-way in the bed of the truck is the 5th wheel 7-way wiring kit part # 50-97-410. This plugs inline to that connector and gives you a harness and 7-way that will reach up to the wheel well. I attached an install video for this kit on a 2016 GMC Sierra 3500 just like yours as well.
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  • Will the Demco UMS Series Gooseneck Hitch Fit a 2015 Silverado 2500 Short-Bed?
    As long as the rails you currently have installed on your 2015 Silverado 2500 short bed are the UMS style rails, like the Demco # DM8551010, you can definitely use the Demco Hijacker UMS Series Gooseneck Trailer Hitch # DM5988. If you have another brand of auto slider and or rails, however, I cannot guaranty the fit.
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  • Fifth Wheel Rail Kit to Install Demco AutoSlide Fifth Wheel Hitch in 2019 Chevy Silverado 3500
    The Demco Hijacker Autoslide hitch part # DM8550034 is a great hitch that can easily be used in the bed of your 2019 Chevy Silverado 3500 without the factory rail kit. Demco recommends their rail kit part # DM8552011-71 which is a confirmed fit for your 2019 Chevy Silverado 3500. This is a custom fit kit which means it will minimize drilling and install time when compared to a universal kit.
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  • Replacement Plugs For Demco Underbed Rail System DM8551010
    Hello again Dewayne! I looked around our site, but it looks like the only thing we have is the direct replacement plugs # DM14335. Everything else was either the wrong shape or wrong size. This is a 2" plug though, so you may be able to find something at a local hardware store that could work and be a bit more flexible. Sorry I don't have a better option for you.
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  • Can the Demco Hijacker 5th Wheel Hitch Be Used W/ a 2014 Chevrolet Silverado 2500 W/ OEM Pucks
    Hey Nick, so it looks like the only way you're going to be able to use your Demco Autoslide 5th Wheel Trailer Hitch w/ Slider # DM8550037 with your 2014 Chevy Silverado is by using the custom underbed mounting kit # DM8551010. This is one of the few hitches that does not use ISR or an OEM puck system to install so you'd have to use their install kit.
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  • Best Autoslide Fifth Wheel Hitch With Underbed Rails for 2018 Chevy Silverado 2500
    For your 2018 Chevy Silverado 2500 there is a great auto-slide fifth wheel hitch available with underbed rails, the Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider # DM8550022 which you would mount with Underbed Rail and Installation Kit for Demco Hijacker UMS # DM8551010 The Hijacker is a premier hitch with an automatic slider which is a great quality-of-life feature because it means not having to hop in and out of your Chevy just to make a sharp turn. This hitch offers complete...
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  • Adapter Plates for Demco Autoslide for 2015 Chevrolet Silverado 2500 High Country
    Hi Rick; there wasn't an actual OEM prep package for your 2015 Silverado 2500 so I'm guessing you have the Underbed Rail and Installation Kit for Demco UMS 5th Wheel and Gooseneck Trailer Hitches # DM8551010. Take a look at the dimensions below and see if that matches what is on your truck. Assuming it does, the Replacement Side Plates # DM6004 are what you need. If you're looking for the full hitch with the side plates we also have the # DM8550022.
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  • Need 5th Wheel Rail Kit For 2016 GMC Sierra 2500 Short Bed Without OEM Prep Package
    Hello John, thanks for reaching out. We have just the thing! I recommend the following: - Demco Premier Series Custom Mounting Brackets for 5th Wheel Above-Bed Base Rails # DM8552011 - Universal Above-Bed Base Rails for Demco Premier Series 5th Wheel Trailer Hitches # DM6071 This will be everything you need to add a set of industry standard 5th wheel rails to your bed. The Demco Hijacker is made to work with industry standard 5th wheel rails. What kind of camper did you get? Just curious.
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  • Install Instructions for Demco Fifth Wheel Rail Kit # DM8551002
    If you check out the video I attached below you'll see an install we did for the Demco rail kit part # DM8551010 on a 2016 Chevy Silverado 2500HD just like yours. This will walk you through the entire process and will be more helpful than the written instructions.
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  • How to Tell if 2016 Chevy Silverado 2500 Has Factory Rail Kit for Fifth Wheel Hitch
    Most likely you would know if you had the Factory Rail Kit in your 2016 Chevy Silverado 2500. There would be holes in the bed of your truck that the feet of a fifth wheel hitch would fit into. I attached a picture that shows what they pucks/holes would look like. If you have them the B and W Hitch part # BWRVK3700 that you referenced would fit and work well. Otherwise for an underbed fifth wheel hitch setup I would recommend the Demco Hijacker part # DM8550022 which will automatically...
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  • Demco Underbed Rail System Dimensions for a 2016 GMC Sierra 2500
    Thanks for the picture! Those holes are not from an OEM puck system because the cab to tailgate dimensions are too short. It looks like the previous owner used the Underbed Rail and Installation Kit for Demco UMS 5th Wheel Hitches item # DM8551010. This system worked similar to an OEM puck system but only with Demco hitches. I have linked a dimensional drawing below for you to compare to what is currently on your truck. I have also attached an installation video. Since your 2016 GMC Sierra...
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  • Recommended 5th Wheel Hitch for 2019 Chevy 2500HD Short Bed without OEM Pucks
    I recommend using the Demco Hijacker Autoslide # DM8550034 on your 2019 Chevy 2500 without the OEM prep package since the slider automatically activates, so there's no getting out of the vehicle required each time you may need to make a tight turn. I also really like that this gives you an under-bed mounting kit with the # DM8551010 so you'll still have a completely clear truck bed when you're not towing your 5th wheel. This hitch has an 18,000-lbs capacity but if you're in need of a larger...
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    You are doing the right thing by doing the research first. There is a lot of conflicting information out there so let me break it down for you and I will provide some part recommendations at the end. Basically, if you want to tow a 5th wheel trailer, the best trucks are going to be long bed 3/4 or 1 tons like a Ford F-250/F-350, Chevy/GMC 2500/3500, or Ram 2500/3500. Half ton trucks could work but are not nearly as capable as the larger trucks. A long bed for sure is something you will...
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  • Best Fifth Wheel Hitch Recommendation for a 2015 GMC Sierra 2500 Short Bed
    Since you have a short bed truck you are going to need to get a slider fifth wheel hitch to allow you to make tight turns. Since getting out and operating the slider every time you get to a parking lot can be a bit of a hassle I would recommend the Demco Hijacker AutoSlide part # DM8550022. This hitch will automatically slide back when making tight turns. If you are looking for the best setup this would be it. The rail kit you would want would be the underbed kit part # DM8551010 that...
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    The Curt Q20 5th Wheel Hitch # C16671 that you referenced is a great option to tow your 2020 Keystone Fuzion if you decide to have your GM dealership install their factory below bed rails. We have some great aftermarket options for you that you can get from us here at etrailer.com. Aftermarket systems are typically less expensive than factory options without sacrificing safety, capacity, or features. For a complete underbed rail 5th wheel system for your 2017 GMC Sierra 3500 Denali,...
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    I do have an option for you but the Andersen Ultimate Connection 5th Wheel Trailer Hitch System part # AM3200 or any of them for that matter will not work on most short bed trucks like what you have on your 2018 GMC Sierra 2500 because they do not provide enough turning clearance even with the offset adapter but if you want you can measure for this using the attached help article. Therefore, the only option you have is a sliding 5th wheel hitch or a fixed hitch with rotating pin box but...
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  • Parts Needed To Install Demco Autoslide 18K 5TH Wheel Hitch On 2019 GMC Sierra 2500 With UMS
    Yes, you do have the correct part numbers. For your Demco Autoslide 5th Wheel Trailer Hitch # DM8550034 the Side Plates # DM6003 are the part number 6003 you referenced. To mount on the Underbed Rail and Installation Kit # DM8551010 for your 2019 GMC Sierra 2500 you will need the Side Plates # DM6004.
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  • Will the Demco Hijacker Work with a MOR/ryde Pin Box
    Yes, the Demco Hijacker Autoslide 5th Wheel Trailer Hitch part # DM8550022 with the Underbed Rail and Installation Kit part # DM8551010 will fit your 2015 Chevrolet Silverado 2500 with the 6-1/2' bed and work with the MOR/ryde pin box you have on your 2018 Jayco Eagle 5th Wheel Trailer. However, in order to prevent the kingpin from rotating inside the hitch you will need to use a locking plate like part # DM6025.
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  • Best Kind of Truck and Hitch to Tow a 5th Wheel Trailer
    To start the best trucks for 5th wheel or gooseneck trailer towing are going to be 1-ton long bed trucks. With a short bed you can run into clearance issues when turning and additional equipment would be required in order to solve that problem. The best hitch for towing a given trailer is going to be the one that matches that type of trailer. So in other words the best hitch for towing a 5th wheel trailer is a 5th wheel hitch. So I do recommend removing the adapter that is on it and using...
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  • Is a Sliding 5th Wheel Hitch Needed for a 2017 GMC Sierra 3500
    The only way to be certain whether or not you have the correct fifth wheel hitch in regards to sliding vs fixed is to first measure both the truck and trailer. I understand this may be difficult if you do not physically have the trailer but is needed to ensure accuracy. There are certain truck/trailer combos that can use a fixed fifth wheel hitch and short bed and there are certain truck/trailer combos that can't use a fixed fifth wheel hitch and short bed. The general rule we use is to...
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  • Below Bed Base Rails for 2002 Ford F-250 and Demco Hijacker Autoslide 5th Wheel Trailer Hitch
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  • How to Tell if 2018 Ford F-250 Has Puck System to use Demco Hijacker Autoslide
    While the best and most certain way to tell if your 2018 Ford F-250 has the puck system is to call your local Ford dealer with your VIN, it should be pretty easy to tell otherwise. If your bed looks like the accompanying photo - with four accessible holes (pucks) and a gooseneck in the middle - you have the puck system. You can also tell based on how your B&W Companion mounts. If you insert it into the pucks you have the B&W Companion OEM 5th Wheel Trailer Hitch with Slider for Ford Towing...
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  • Under Bed 5th Wheel Rail Kit and AutoSlider Hitch Compatible with 2019 Ford F-350 Without OEM Pucks
    The Under-Bed Rail and Installation Kit for Reese Elite Series 5th Wheel Trailer Hitches #30068 was discontinued and is only compatible with commercial 34 inch frames, so it won't fit your 2019 Ford F-350. I reached out to Reese and they don't currently have a model compatible with the 2017-2019 model trucks. I do have an option for you that gives you the under bed rails and the automatic slider you are seeking, but you won't have the pucks like the factory option. I attached a photo...
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  • Under Bed 5th Wheel Installation Kit and Hitch for a 2017 Ford F-250 4x4 with 6-1/2 Foot Bed
    There are below the bed 5th wheel installation kits for the 2017 Ford F-250; just not any Reese kits. The reason for that is Reese makes the factory under bed install kit for Ford so they tend not to release an aftermarket kit right away (or at all in some cases) which gives Ford exclusivity to it. If you do not already have a Reese Elite Series hitch then you can go with one of the other under bed kits and a hitch for it. I would need to know the bed length of your truck and if it is...
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  • What is the Best Automatic Sliding 5th Wheel Hitch for a 2024 Ford F-250
    Hey Earl, thanks for reaching out! There are two main competitors for the top spot of automatic 5th wheel hitches; the Demco Hijacker and the PullRite SuperGlide. While we only carry the Hijacker, I've looked into the SuperGlide enough that I can point out the main differences and why the Hijacker edges past the SuperGlide. Both options feature 14" of sliding clearance and can be installed in either OEM puck systems or industry standard rails (ISR), but there are the main differences...
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  • Fifth Wheel Hitch and Tonneau Cover Recommendation for 2017 Ram 3500 with Short Bed
    For your 2017 Ram 3500 6-1/2 Foot Bed without Factory Rail Kit you'll need a slider hitch to allow you to make tight turns without cab interference. My favorite slider hitches are the ones that automatically slide as you make tight turns as that saves you the hassle of getting out and activating the slider every time it's needed. For that I would recommend the Demco Hijacker part # DM8550037 and the install rail kit part # DM8551006. This is an underbed rail kit too which means when you...
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  • Can the Demco Hijacker 5th Wheel Hitch Be Used W/ a 2014 Chevrolet Silverado 2500 W/ OEM Pucks
    Hey Nick, so it looks like the only way you're going to be able to use your Demco Autoslide 5th Wheel Trailer Hitch w/ Slider # DM8550037 with your 2014 Chevy Silverado is by using the custom underbed mounting kit # DM8551010. This is one of the few hitches that does not use ISR or an OEM puck system to install so you'd have to use their install kit.
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  • Choosing Between the Demco Autoslide and B&W Companion for 2020 Ford F-250 without OEM Prep Package
    I can understand why a hitch like the Demco Hijacker Autoslide # DM8550022 (18k) or # DM8550037 (21k) is so attractive; they provide a much better solution for towing a 5th wheel with a short bed truck when it comes to not having to get in and out of the truck each time you need to make a tight turn. With that said, they're not compatible with B&W Turnoverball Underbed kits like the # BWGNRK1116-5W since the hitches connect to the underbed kit in two very different ways. In order to use...
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  • Replacement Parts Breakdown for Demco Hijacker Autoslide Hitch DM8550034
    Thank you for purchasing the Demco Hijacker Autoslide 5th Wheel Trailer Hitch # DM8550034 back in 2017. All replacement parts we sell appear on the page I linked for you. I also linked the install instructions for this hitch and on pages 9 through 11 you'll find the complete parts breakdown with individual part numbers. Since your hitch came with a 5-year warranty you may be able to obtain some replacement parts from Demco under warranty, if you wish. Some smaller parts we may not stock...
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  • Does Demco Underbed Kit Give Full Bed Access for 2021 Chevy Silverado 2500
    The Underbed Rail and Installation Kit # DR37FR is a great way to keep the bed of your 2021 Chevy Silverado 2500 short bed clean when you aren't towing your 5th wheel. It comes with plugs for the 4 attachment points so you don't have to worry about them filling up with debris either. This 4-point mounting system is compatible with the Demco Hijacker Autoslide which is available as an 18K Model # DM8550022 as well as a 21K Model # DM8550037. These are a great option for your short bed pickup...
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  • Using A Lippert Turning Point Pin Box With A Demco Autoslide 5th Wheel Hitch
    The reason the Demco Capture Plates # DM6171 aren't working with your Lippert Turning Point pin box is because they were specifically designed for Trailair Rota-Flex pin boxes. Since you have a Demco Autoslide # DM8550037 you'll need to lockout your Turning Point pin box and allow rotation only at the hitch to king pin connection point. To do this you'll need to install two 5/8" - 11 x 2" in the lockout holes in the back of the pin box.
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  • Should I Choose Demco, Reese, or PullRite Underbed Rail System for My 2020 Chevy Silverado 2500
    For your application I recommend installing the Demco UMS Underbed Rail Kit # DR37FR on your 2020 Chevy Silverado 2500 and using the Hijacker Autoslide # DM8550037. The reason behind this is twofold; the Hijacker has more height adjustability and it comes with capture plates (as opposed to sold separately), and then Reese doesn't have an underbed rail system for your truck so you'll have to use the matching underbed rails for the 5th wheel hitch. Since the Demco Hijacker is better than...
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  • Weight of 21K Demco Hijacker Autoslide 5th Wheel Hitch DM8550037
    The 21K-rated Demco Hijacker Autoslide 5th Wheel Trailer Hitch # DM8550037 has a shipping weight of 332-lbs. The lower-rated 18K model # DM8550024 has a shipping weight of 304-lbs.
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  • What is the Difference Between an Under-Bed and Above-Bed 5th Wheel Base Rail Kit 2018 Ford F-350
    In order to install the Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider part # DM8550035 for above-bed base rail kits or part # DM8550037 for below-bed base rail kits on your 2018 Ford F-350 Super Duty you will need a set of 5th wheel base rails. We currently have two different sets of base rail kits for your truck; under-bed and above-bed. The above-bed base rail kit like the Demco Hijacker Premier Series Above-Bed Base Rails and Custom Installation Kit for 5th Wheel Hitches...
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  • Best 5th Wheel Hitch for 2019 Ford F-250 With Short Bed
    Your 2019 Ford F-250 with a short bed is going to need a sliding fifth wheel hitch to ensure your trailer does not come into contact with your truck's cab and damaging it. The good news is there is one great option for a fifth wheel hitch that is going to make your towing experience with a short bed truck much easier because it won't require you to get out of your truck and activate the slider - the Demco Hijacker Autoslide 5th Wheel Hitch. The correct Hijacker Autoslide will depend on...
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  • 5TH Wheel Rail Kits and Hitches For a 2016 Ford F-350 Without Factory Prep/Puck System
    You will have several options for mounting a 5th wheel hitch in your 2016 Ford F-350. First is the Curt Custom 5th Wheel Installation Kit for Ford # C16424-204. This system gives you rails that will mount inside your bed and accept either a Sliding Hitch # C16541 for a short bed or Fixed Hitch # C16130 for a long bed. This system does mean that you will have the rails that are always in your bed which can be a hassle if you do slide things in and out of you bed a lot. Next is the B&W...
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  • Is Demco Auto-Slide 5th Wheel Hitch Compatible with B&W Installation Kit
    The design of the B&W under-bed gooseneck install kit # BWGNRK1067-5W that accepts their Companion hitch # BWRVK3400-5W in your 2008 Chevy 2500HD short-bed does not allow use of another slider hitch, nor use of any type of adapter to allow an industry-standard type hitch to mount. You will need to completely remove the entire B&W system in order to install a Demco kit. For a Demco under-bed installation kit you will use kit # DM8551004 and either 18K slider hitch # DM8550022 or 21K hitch...
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  • Demco Underbed Rail System Dimensions for a 2016 GMC Sierra 2500
    Thanks for the picture! Those holes are not from an OEM puck system because the cab to tailgate dimensions are too short. It looks like the previous owner used the Underbed Rail and Installation Kit for Demco UMS 5th Wheel Hitches item # DM8551010. This system worked similar to an OEM puck system but only with Demco hitches. I have linked a dimensional drawing below for you to compare to what is currently on your truck. I have also attached an installation video. Since your 2016 GMC Sierra...
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  • Best 5th Wheel Towing Setup for a 2007 GMC Sierra 2500HD
    Since you have a short bed (6-1/2') on your 2007 GMC Sierra 2500HD, you will need a rolling hitch or more commonly referred to as a sliding 5th wheel hitch for your 397 Heartland Edge Toy Hauler to make tight turns. The general rule of thumb is that if you're towing a 5th wheel trailer with a truck that has a bed shorter than 8' then you will need a sliding hitch to gain clearance between the trailer and the cab of your vehicle while turning to prevent them from contacting one another,...
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  • Recommended 5th Wheel Hitch for 2019 Chevy 2500HD Short Bed without OEM Pucks
    I recommend using the Demco Hijacker Autoslide # DM8550034 on your 2019 Chevy 2500 without the OEM prep package since the slider automatically activates, so there's no getting out of the vehicle required each time you may need to make a tight turn. I also really like that this gives you an under-bed mounting kit with the # DM8551010 so you'll still have a completely clear truck bed when you're not towing your 5th wheel. This hitch has an 18,000-lbs capacity but if you're in need of a larger...
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  • Locking Plate Needed To Lock A Lippert Turning Point Into The Head Of A Demco Hijacker
    To utilize your Demco Autoslide 5th Wheel Trailer Hitch w/ Slider # DM8550037 you'll just need the Demco Autoslide Locking Plate for Lippert Turning Point and 5th Airborne Pin Boxes # DM77GV. This will replace the factory wedge kit that came with your Turning Point and lock into the funnel of your hitch to prevent the king pin from pivoting in the jaws of the hitch.
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  • Towing a Fifth Wheel Trailer with a 2007 Dodge Ram Mega Cab with a 6 Foot Bed
    You can tow a fifth wheel trailer with a 2007 Dodge Ram Mega Cab that has a 6 foot bed. Unless your trailer has a Sidewinder or Revolution pin box already you're going to need a sliding fifth wheel hitch. To install a hitch in your 2007 Dodge Ram use # RP50140-58 for the custom install kit. Another option is the Demco Hijacker Autoslide # DM8550037. The Hijacker travels 14 inches but the best part is that it slides automatically. No getting out of your truck to activate the slide feature...
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  • Availability of Valley Industries 5th Wheel Hitch Underbed Mount for 2017 Ram 3500
    I have an under bed option for you, but since Valley Industries went out of business about 5 years ago (2012) they have not produced any underbed kits that will work with your sliding Valley Industries 5th Wheel Hitch on your 2017 Ram 3500. The only under bed rail system that is available for your 2017 Ram 3500 with a 6 foot bed is the Demco Custom Install Below Bed Rails # DM8551006. These rails are only compatible with the Demco Autosliding 5th Wheel Hitches. You can either use the 18K...
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  • Comparing Curt A20 Slider, Demco Hijacker Autoslide and Pullrite 2700 Auto Slider
    The Curt sliding fifth wheel hitches are manual sliders like the A20 slider part # C16669. We do carry the Demco Hijacker AutoSlider part # DM8550037 which is similar to the Pullrite but in a lot of ways better. Although they both have the single-jaw system to lock the king pin into place, the SuperGlide hugs it against the side of the head whereas the Hijacker has an extra piece that locks it directly in the middle of the hitch head. The Hijacker also has a 3/4" thick, solid steel locking...
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  • Fifth Wheel Hitch Recommendation for 2019 Chevy Silverado 2500 LTZ
    Hey Jeff, for a 2019 Chevy Silverado 2500 without the OEM underbed rail kit I would go with the Demco Hijacker Autoslide fifth wheel hitch part # DM43SV for a hitch that will automatically slide back as your customer makes tight turns so they'd never have to get out and operate a slider when they get into an area that requires tight turns. This also comes with an underbed style rail kit which means the bed will be less obstructed when you aren't towing. We also have a version that uses...
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Do you have a question about this 5th Wheel Hitch?


Info for this part was:

Employee Lindsey S
Updated by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Jameson C
Expert Research:
Jameson C
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R

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