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Old 12-23-2011, 11:59 AM   #1
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rv 5 king pin extention

does any body have a rv 5 extention for the king pin ? do you like it and recomend it to others ? [Moderator Edit]

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Old 12-24-2011, 09:35 AM   #2
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Extended pin boxes are common--I have the MorRyde and it has worked well.
Are you asking about a particular one (rv 5?) or just the extended pin box in general?


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Old 12-24-2011, 09:43 AM   #3
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You need to tread carefully with pinbox extensions. They add a significant moment arm (like a cheater pipe) that produces or increases the torque loading where the pinbox mounts to the RV's frame. Some frames can handle this - some can't!!

I would check with the RV manufacturer (NOT a dealer) to verify that they will approve the use of a pinbox extension on your particular make and model RV.

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Old 12-24-2011, 11:53 AM   #4
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I would not extend the pin box any farther than the original pin box. You best bet is to get a slider hitch.

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Old 12-24-2011, 12:08 PM   #5
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just wanted to extend the pin for a clearence problem. no perticular brand , I just saw the rv 5 and it is less expensive , about $300 .I have a 36 ft alumascape by Holiday Rambler . they are out of business I think . thanks Tim
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Old 12-24-2011, 06:16 PM   #6
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From what I read looks like you are having a problem with the clearance between the bed rails and the camper. I know on my hitch
I could lift the 5th wheel up by taking the side bolts out and lifting up on the plate assy. I have a Reese 20k hitch and can lift mine.

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