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2005 Ford Freestar
Demco
Underbed Rail and Installation Kit for Demco UMS 5th Wheel and Gooseneck Trailer Hitches
Part Number: DM8551010
In Stock
$499.30
Retail:$647.00
You Save: $147.70
2005 Ford Freestar
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- All Info
- Reviews (15)
- Q & A (0)
- Photos
Demco 5th Wheel Hitch Rails - DM8551010
Highlights
- Custom Fit for Your Vehicle: Mounting brackets install to your truck's frame.
- Full Bed Access When Hitch Is Removed: Underbed rails leave the truck bed clear with no exposed rails.
- Simplifies Installation: No-drill frame brackets bolt to the outside of the frame for easier setup.
- Built for Demco UMS Hitches: Designed to work with Demco Underbed Mount Series 5th-wheel and gooseneck hitches.
- Durable, Corrosion-Resistant Build: Black powder coated steel withstands heavy use and elements.
- Complete Kit for a Secure Mount: Includes rails and installation hardware for a ready-to-install setup.
Features to know about
Full Bed Access: Underbed Rails Keep the Truck Bed Clear
This custom underbed rail kit mounts beneath the bed, so when the hitch is removed you’ve got a clean, open surface to use like normal. The four mounting holes sit flush with the bed floor, leaving no bulky rails or brackets in the way. It’s a great setup if you haul cargo when you’re not towing and want full use of your bed space.
Simple, No-Drill Installation: Custom Brackets Bolt to Frame
The no-drill frame brackets bolt right to the outside of the truck’s frame rails, cutting down on install time and eliminating extra holes. The crossmembers sit on top of the frame rails under the bed, creating a strong foundation for your Demco Underbed Mount Series (UMS) 5th-wheel or gooseneck hitch. It’s a solid, straightforward design that goes in clean and stays tight.
Strong, Corrosion-Resistant Build: Powder-Coated Steel Construction
Every piece of the kit is built from durable black powder-coated steel to stand up to the elements and resist corrosion. The sturdy rails and included mounting hardware give you confidence that your hitch connection points are secure for the long haul. The kit is backed by a 5-year limited warranty, adding peace of mind to the setup.
Specs
Application
- Application: Demco Underbed Mount Series (UMS) 5th-wheel and gooseneck trailer hitches
Warranty
- Warranty: 5-Year limited warranty
8551010 Demco Hijacker UMS Under Bed Rail Frame Bracket Kit
Replaces Demco DM8551002 and DM8551003
This Product Fits The Following Vehicles
- 2011 - 2013 GMC Sierra 2500 - 6-1/2 Foot Bed
- 2011 - 2013 GMC Sierra 2500 - 8 Foot Bed
- 2011 - 2013 GMC Sierra 3500 - 6-1/2 Foot Bed
- 2011 - 2013 GMC Sierra 3500 - 8 Foot Bed
- 2014 - 2015 GMC Sierra 2500 6-1/2 Foot Bed
- 2016 - 2019 GMC Sierra 2500 6-1/2 Foot Bed without OEM Prep Pkg
- 2014 - 2015 GMC Sierra 2500 8 Foot Bed
- 2016 - 2019 GMC Sierra 2500 8 Foot Bed without OEM Prep Pkg
- 2014 - 2015 GMC Sierra 3500 6-1/2 Foot Bed
- 2016 - 2019 GMC Sierra 3500 6-1/2 Foot Bed without OEM Prep Pkg
- 2014 - 2015 GMC Sierra 3500 8 Foot Bed
- 2016 - 2019 GMC Sierra 3500 8 Foot Bed without OEM Prep Pkg
- 2011 - 2013 Chevrolet Silverado 2500 - 6-1/2 Foot Bed
- 2011 - 2013 Chevrolet Silverado 2500 - 8 Foot Bed
- 2011 - 2013 Chevrolet Silverado 3500 - 6-1/2 Foot Bed
- 2011 - 2013 Chevrolet Silverado 3500 - 8 Foot Bed
- 2014 - 2015 Chevrolet Silverado 2500 6-1/2 Foot Bed
- 2016 - 2019 Chevrolet Silverado 2500 6-1/2 Foot Bed without OEM Prep Pkg
- 2014 - 2015 Chevrolet Silverado 2500 8 Foot Bed
- 2016 - 2019 Chevrolet Silverado 2500 8 Foot Bed without OEM Prep Pkg
- 2014 - 2015 Chevrolet Silverado 3500 6-1/2 Foot Bed
- 2016 - 2019 Chevrolet Silverado 3500 6-1/2 Foot Bed without OEM Prep Pkg
- 2014 - 2015 Chevrolet Silverado 3500 8 Foot Bed
- 2016 - 2019 Chevrolet Silverado 3500 8 Foot Bed without OEM Prep Pkg
Customer Satisfaction Score:
91% were satisfied with this product
9% of customers were not satisfied
- Arrived Damaged
Ratings & Reviews
4.0
15 reviews
by:
Jason
06/19/2026
Arrived right on time, Sales associate very knowledgeable and completed my order with Ease.
by:
David S.
01/03/2020
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:
Myron
09/17/2018
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:
Kirk C.
07/25/2019
Kit made for my rig and fit as described. Installation a little on the difficult side for your typical DIY'er.
by:
Mike
06/26/2018
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:
Gary
08/15/2021
This product is nice but doesn’t line up with OEM placement of pucks.
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:
Jeffrey
10/15/2018
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:
Donald
05/09/2019
It arrived in two days. Great delivery.
by:
Dennis
03/19/2022
by:
Michael
09/03/2021
2012
Chevrolet
Silverado
by:
Todd
10/31/2022
by:
Todd
08/13/2021
by:
James
08/12/2021
by:
John
03/08/2021
by:
Eric
10/04/2022
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See what our Experts say about this Demco 5th Wheel Hitch Rails
- What Does Demco Hijacker Autoslide and Rail Kit for 2019 Chevy Silverado 3500 WeighThe 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.
view full answer... - 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.
view full answer... - How to Install the Demco 18K Hijacker Autoslide 5th Wheel Trailer Hitch on a 2011 GMC Sierra 2500In 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...
view full answer... - 7-Way Trailer Wiring Connector for Bed of 2016 GMC Sierra 3500Sounds 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.
view full answer... - Adapter Plates for Demco Autoslide for 2015 Chevrolet Silverado 2500 High CountryHi 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.
view full answer...
- Fifth Wheel Rail Kit to Install Demco AutoSlide Fifth Wheel Hitch in 2019 Chevy Silverado 3500The 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.
view full answer... - Replacement Plugs For Demco Underbed Rail System DM8551010Hello 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.
view full answer... - Can the Demco Hijacker 5th Wheel Hitch Be Used W/ a 2014 Chevrolet Silverado 2500 W/ OEM PucksHey 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.
view full answer... - Best Autoslide Fifth Wheel Hitch With Underbed Rails for 2018 Chevy Silverado 2500For 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...
view full answer... - Need 5th Wheel Rail Kit For 2016 GMC Sierra 2500 Short Bed Without OEM Prep PackageHello 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.
view full answer... - Install Instructions for Demco Fifth Wheel Rail Kit # DM8551002If 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.
view full answer... - How to Tell if 2016 Chevy Silverado 2500 Has Factory Rail Kit for Fifth Wheel HitchMost 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...
view full answer...
- Demco Underbed Rail System Dimensions for a 2016 GMC Sierra 2500Thanks 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...
view full answer...
- Recommended 5th Wheel Hitch for 2019 Chevy 2500HD Short Bed without OEM PucksI 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...
view full answer... - Do 16k and 20k Fifth Wheel Hitches Connect to Same Size King PinAll of the fifth wheel hitches we carry are designed to fit the same size king pin on a trailer. A 16k hitch would work just as well to connect to a fifth wheel trailer as a 20k fifth wheel hitch. I attached a link to a page that has all of the 20k fifth wheel hitches we offer.
view full answer... - What is the Best Truck for Towing a 5th Wheel TrailerYou 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...
view full answer... - Best Fifth Wheel Hitch Recommendation for a 2015 GMC Sierra 2500 Short BedSince 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...
view full answer... - Slider Kit Availability For A Reese 22K Series 5th Wheel HitchWe do offer slider kits for Reese hitches like the Reese Square Tube Slider for 5th Wheel Trailer Hitch # RP30048 that works with 15K, 16K, or 20K Reese 5th wheel hitches. However, unfortunately your Reese 22K Fifth Wheel Hitch # 30034 is not a compatible hitch for these sliders. If you need a slider hitch for your Silverado, I recommend the Demco Hijacker Autoslide 5th Wheel Hitch # DM8550037 with the rail kit # DM8551010. This awesome hitch is capable of towing a maximum of 21,000 lbs,...
view full answer... - Can the Andersen Ultimate Be Used on a 2018 GMC Sierra 2500 Short BedI 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...
view full answer... - Recommended Fifth Wheel Hitch Setup for 2017 GMC Sierra 3500 to Tow 2020 Keystone FuzionThe 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,...
view full answer... - Parts Needed To Install Demco Autoslide 18K 5TH Wheel Hitch On 2019 GMC Sierra 2500 With UMSYes, 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.
view full answer... - Will the Demco Hijacker Work with a MOR/ryde Pin BoxYes, 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.
view full answer... - Best Kind of Truck and Hitch to Tow a 5th Wheel TrailerTo 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...
view full answer... - Auto Sliding Fifth Wheel Hitch and Rail Kit for 2015 Chevy Silverado 2500HDSince there isn't a way to connect an automatic sliding fifth wheel hitch to a B and W Turnoverball gooseneck hitch you will have to remove your current hitch gooseneck hitch to accomplish this. The Demco Hijacker Autoslide part # DM8550037 is the hitch I recommend as it has a 21k capacity and slides automatically as you make tight turns like you are wanting. This hitch also installs to underbed rails which will leave your truck bed a more empty when not towing. The correct rail kit for...
view full answer...
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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.