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How Many Spacers to Use with Demco Rail Kit Adapter part # DM6004  

Updated 01/27/2026 | Published 08/25/2024

Question:

I bought the demco adapter for my 21 f250 puck system. Can you tell me which spacers to use so I dont have to keep taking the hitch out and take it apart to put the others on?

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Expert Reply:

I wish there was an exact number of spacers to use when installing the # DM6004 but due to variances in vehicles you'll have to trial and error the amount and type to use that will give you the best fit.

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Jameson C
Jameson C. profile picture
Etrailer Expert

Jameson C.

1/27/2026

Hey, how did things go with finding the right number of spacers for your F-250’s puck system? Once you got the fit dialed in, did the hitch stay snug without extra adjustments? Your update could make it easier for others working with the same adapter.

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