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Replace the side plates that came with your Demco Autoslide underbed fifth-wheel trailer hitch (DM8550024 or DM855038). They bolt onto the hitch base so that you can attach your hitch to the factory underbed mounts in your Ford Super Duty.
Features:
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to take a look at the replacement side plates for the Demco Hijacker Autoslide 5th-wheel trailer hitch to fit your Ford Super Duty's Factory Underbed Rail System. Now these parts here will replace the side plates that came standard with your Demco Hijacker Autoslide 5th-wheel trailer hitch. They will fit the 18,000 pound hitch, which is part number DM8550024, and it will also fit the 21,000 pound hitch, part number DM8550038. Both of those hitches we do sell separately on our website. These parts here will let you install your hitch in the factory pucks of your Ford Super Duty Factory Underbed Rail System. These are a simple bolt-on installation to your Hijacker Autoslide Hitch Base and it gives you multiple rows of holes you can see here to let you adjust the correct hitch height.All these parts are a rust resistant black powder coat steel construction.
Comes with all the mounting hardware you need, all the handles you can see right here, and the safety pins are included. These parts are made in the USA, but basically these would bolt to the side of your Hijacker Autoslide 5th-wheel hitch and they're made to fit the factory underbed system. So all you have to do once these are installed, is you just pull this clip, remove the safety pin, rotate your handle out, do the same here, do the same on the other two on the other side, and that will allow you to drop it into the factory pucks on the factory Ford system. Once they drop into place, you just rotate that handle back, drop your pin through, take your safety clip and install it, and you're all ready to go. But that should do it for the review on the replacement side plates for the Demco Hijacker Autoslide 5th-wheel trailer hitch to fit the Ford Super Duty's Factory Underbed Rail System..
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews

Eric S.
12/15/2018
The Demco hitch and alternate plates to adapt to my new truck have worked great. As a full timer, it gets a lot of use. On a couple of occasions, I needed to remove the hitch to get full use of the bed for other uses. This was fast and easy! I took the head off first to lesses the weight, and then simply slid the hitch using a couple of boards onto a couple utility horses. Then back in afterwards in less than five minutes. The plates also allow for locking the hitch into the truck bed instead of using the included lock-pins. Ive put a lock on this, just as as added security. Overall - happy with product!

Glen M.
1/25/2021
The replacement side plates were easy to install and worked perfect. I really like being able to remove the hitch to have full use of my bed.
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Kevin
2/9/2026
After a year of use everything is perfect! Thanks again