Do Demco Fifth Wheel Rails Require Demco Fifth Wheel to Gooseneck Adapter

Updated 07/29/2019 | Published 07/27/2019

Products Featured in This Question

Demco UMS Series Gooseneck Trailer Hitch for UMS Series Base Rails - 25,000 lbs

(7)

$681.16

Curt Spyder Gooseneck Trailer Hitch for Fifth Wheel Rails, 25,000 lbs GTW

(500)

$294.94

Underbed Rail and Installation Kit for Demco UMS 5th Wheel and Gooseneck Trailer Hitches

(14)

$484.00

Question:

Hi, I have a Demco 5th wheel hitch with demco rails, I want to get a gooseneck adaptor to fit these rails, do I have to buy a demco or will any gooseneck adaptor fit?

asked by: Martin S

Expert Reply:

Demco uses/used a few different styles of fifth wheel rails over the years so the key will be determining what rails you have now so that we can pick out the correct adapter you'd need. The part # DM5988 you referenced is for the UMS style rails which are an underbed rail that looks like part # DM8551010.

If you have what looks like standard fifth wheel rails that sit on top of the truck bed and are spaced 22 inches apart like part # RP30035 then you can use more of a standard gooseneck adapter like the Curt Spyder part # 16085.

expert reply by: Jameson C