Parts Needed to Convert Demco Autoslide for ISR Rails to 2024 Ram 3500 OEM Puck System

Updated 10/22/2025 | Published 04/05/2025

Products Featured in This Question

Replacement Side Plates for Demco Autoslide 5th Wheel Trailer Hitch - Ram

(26)

$588.56

Demco Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Above Bed - 18,000 lbs

(740)

$1795.00

Question:

I have a Demco 8550034, 18K for above bed mounting. Can I add the Demco DM99GV adapter for puck install?

asked by: John P

Expert Reply:

Hey John! Yes, your Demco Autoslide # DM8550034 can be converted to fit your 2024 Ram 3500 prep package using the Replacement Side Plates for Demco Autoslide 5th Wheel Trailer Hitch # DM99GV. All you need to do is swap out the ISR adapter plates with the new side plates on your current hitch. Do you have any big summer plans with your 5th wheel?

expert reply by: Robin H

Demco Autoslide in Ram With Puck System
(click to enlarge)

Robin H.

10/22/2025

Hey John, how did the swap to the new side plates for your Demco Autoslide go on your Ram 3500? Your update could make it easier for others looking to convert their hitch for a puck system.

John P.

10/22/2025

Had a problem when I tried to slide my hitch into the capture plate. Problem was I did not have the opening set wide enough. Had to move the Demco side plates all of the way out and remove the big adjustment bolts from the side plates. Then I was able to access and tighten the adapter plates Allen bolts through the hole that once had the adjustment bolts. Once I got the Allen bolts tight, I replaced the adjustment bolts and everything was fine. But my plates are ALL THE WAY OUT. This is not a problem, in fact everything works perfectly. Just did not realize that I would have to move those plates all of the way out.