Underbed Demco Hijacker Hitch and Rail Kit Recommendation for 2016 GMC Sierra 3500
Question:
I have a 2016 GMC Sierra 3500 SRW and am looking for a 5th wheel hitch. I would prefer under bed rails. I do not have the factory mounting system. I like the Demco Hijacker autoslide. Is there a way to mount it to under bed rails? What are my other options for under bed mounting autoslide hitches?. I am thinking of trailer with Mor/Ryde pin box or Trail Air rotoflex pin box anything additional required for compatibility with the hitches?
asked by: Brian T
Expert Reply:
There is a great underbed rail system that Demco offers for their Demco Hijacker Autoslide hitches. The rail system you'd need for your 2016 GMC Sierra without the factory rail kit is the part # DM8551010.
Then for a hitch you'd need the part # DM8550022 for the 18k version or the part # DM8550037.
The Trailair pin boxes can be used with the Demco Hijacker but not the RotaFlex. To use one with a Mor/Ryde pin box requires the locking plate part # DM6025.

Products Referenced in This Question
Demco Autoslide Locking Plate for MOR/ryde Pin Boxes
- Accessories and Parts
- 5th Wheel Pin Box
- Locking Plate
- Hijacker 5th Wheel
- MORryde Pin Box
- Demco
more information >
Demco Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Underbed - 18,000 lbs
- 5th Wheel Hitch
- Sliding Fifth Wheel
- Aftermarket Below Bed Rails
- 4500 lbs Vertical Load
- 18000 lbs GTW
- Double Pivot
- Premium - Single-Hook Jaw
- 15-1/2 - 18-1/4 Inch Tall
- 14 Inch Fore/Aft Travel
- Demco
more information >
Demco Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Underbed - 21,000 lbs
- 5th Wheel Hitch
- Sliding Fifth Wheel
- Aftermarket Below Bed Rails
- 5250 lbs Vertical Load
- 21000 lbs GTW
- Double Pivot
- Premium - Single-Hook Jaw
- 15-1/2 - 18-1/4 Inch Tall
- 14 Inch Fore/Aft Travel
- Demco
more information >
Product Page this Question was Asked From
Underbed Rail and Installation Kit for Demco UMS 5th Wheel and Gooseneck Trailer Hitches
- 5th Wheel Hitch Rails
- Custom
- Below the Bed
- Demco
more information >
Featured Help Information
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