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 > Fifth Wheel Hitch Heigth

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skinnyme

Pa

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Posted: 10/06/19 05:05pm Link  |  Quote  |  Print  |  Notify Moderator

New to Fifth Wheels.
What should be the approximate distance between the top of the truck bed and the top of the fifth wheel hitch.
I have 4". Will this be enough?
Thanks in advance.

agesilaus

North Florida

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Posted: 10/06/19 05:21pm Link  |  Quote  |  Print  |  Notify Moderator

For the truck rails: 6 inches is minimum; most want 8 inches. That is the critical measurement.


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ksbowman

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Posted: 10/06/19 05:42pm Link  |  Quote  |  Print  |  Notify Moderator

At 4" when you get in any rough or hilly ground there will be contact.

romore

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Posted: 10/06/19 05:43pm Link  |  Quote  |  Print  |  Notify Moderator

Is your trailer level? Four inches is really not enough, you may have to raise the hitch making it a bit nose high which is not ideal.

MFL

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Posted: 10/06/19 06:34pm Link  |  Quote  |  Print  |  Notify Moderator

I think what you are saying is that your top of hitch is 4"s below the bed rails. I would guess that most are 2-3 inches lower than rails. Do you have the FW, to hook it up, see if you need to raise hitch higher? The end result should have your FWs under side at least 6"s higher than bed rails. All FW pinboxes are not shaped the same, and can be raised lowered as needed. You'll have to hook er up, then decide best option for your set up.

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BB_TX

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Posted: 10/06/19 06:43pm Link  |  Quote  |  Print  |  Notify Moderator

6” between the truck bed rails and the underside of the 5er overhang is what is important. That’s where possibly hitting may occur. Hitch height has to be adjusted to get that clearance but is not a standard height.

skinnyme

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Posted: 10/06/19 07:04pm Link  |  Quote  |  Print  |  Notify Moderator

MFL - you've answered my question. Thank you. I did not know that pin boxes could be adjusted. My 5th wheel hitch is 17" max and my truck bed rails are 21". I'm not getting the trailer until November so I'll have to wait to get the trailer in order to figure things out.

agesilaus

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Posted: 10/06/19 07:06pm Link  |  Quote  |  Print  |  Notify Moderator

Pin boxes can be adjusted, but they are heavy. Better have two guys to do the adjusting you and a buddy. Or better yet make the dealer do the adjusting, it has to be set before you hook up anyway. And don't let them stop until they have it just right.

rhagfo

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Posted: 10/06/19 08:50pm Link  |  Quote  |  Print  |  Notify Moderator

agesilaus wrote:

Pin boxes can be adjusted, but they are heavy. Better have two guys to do the adjusting you and a buddy. Or better yet make the dealer do the adjusting, it has to be set before you hook up anyway. And don't let them stop until they have it just right.

While a pin box can easily be adjusted by single person using your tailgate and landing gear.
I would make the dealer do it, getting the nuts and bolts loose usually requires an impact wrench.


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Posted: 10/07/19 06:47am Link  |  Quote  |  Print  |  Notify Moderator

I had 5 inches with first truck pulled out of a parking area up a small incline turning left. I didn't see the damage until I stop for gas. Small dint in the top of box

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