Clearance Needed for the Flat Bed Demco Recon Gooseneck to 5th Wheel Hitch Adapter
Updated 07/13/2026 | Published 07/07/2026
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Question:
will a 2026 f350 srw with a pronghorn low side tool box that 4 above 8 flat bed with an auxiliary fuel tank thats 31 deep and 28 tall with a recessed ball in a 15 x 15 opening and the ball is 15 from tank connecting to goose neck adaptor on a 2025 hero keystone cougar 320 work
asked by: Chris H
Expert Reply:
You've got plenty of room Chris. The Demco Recon Gooseneck-to-5th Wheel Trailer Hitch Adapter for Recessed Ball item # DM8550046 will work great with your setup. It requires at least a 14" × 14" recessed well and works with ones up to 20" × 20".
You will want to make sure your 2-5/16" gooseneck ball is 13/16" or closer to the top of the flat bed's recessed well for the Demco Recon item # DM8550046 to attach. The head height is adjustable from 12", 13-1/4", or 14-1/2".
Another thing to take a measurement for is that the top of the tool boxes need to be at least 6" below the bottom overhang of your 5th wheel trailer.
What kind of pin box do you have on your Keystone Cougar 320?
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John C.
7/12/2026
I have the aluminum Hillsboro flatbed with recessed gooseneck ball. This was a perfect choice for my needs. I can’t comment on the drag tank and clearance that you ask about. My 40’ Jayco pulls like a dream, the fifth wheel hitch addy is easy to install and adjust as needed. I have the 3500 ram dually. I think you will be satisfied if you purchase this unit.
Jerred H.
7/13/2026
Larry
7/13/2026
Works great. Just like I wanted it to. I would recommend it to anyone. Larry Riden
Jerred H.
7/13/2026
Product Page this Question was Asked From
Demco Recon Gooseneck-to-5th Wheel Trailer Hitch Adapter for Recessed Ball - Single Jaw - 21,000 lbs
- 5th Wheel Gooseneck Adapter
- Adapts Flatbed Truck
- Gooseneck Hitch to 5th Wheel Trailer
- No Extra Clearance
- 21000 lbs
- Connects to Gooseneck Ball
- Not Shock Absorbing
- Demco
more information >
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on 5th Wheel Gooseneck Adapter
Don P.
7/12/2026
I have the demco recon and love it. Very study no chucking. I would use it again knowing what I know now. Have any more questions feel free to contact me I have pics