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Old 04-27-2012, 06:39 PM   #1
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Shank Length and Hitch Rating

i would like to be able to drop my tailgate without disconnecting the trailer so i can access items quickly.

I had a 12" hitch/step extension that i used with my pop up, but it significantly reduced my tongue weight capacity.

has anyone purchased a long adjustable ball mount receiver that enable the tailgate to be opened?

if so, what length? And, did the longer adjustable receiver reduce your tongue weight?

thanks for any help you can provide
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Old 04-27-2012, 06:51 PM   #2
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An extension to your hitch will ALWAYS significantly reduce your tongue load allowed due to moving the force application point in the wrong direction.

Remember that maximum tongue load is based on the force exerted on the ball acting through a moment arm that goes to your tow vehicle's wheels.

Moving that force away from the wheels makes the moment arm longer and reduces the allowable force before the hitch/truck is overloaded.

This is a pictorial of how a WD hitch works, but you can see the relationship of the ball, wheels, and the forces involved.
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Old 04-27-2012, 08:58 PM   #3
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it would help if you posted what you're towing with and if it has a factory receiver or aftermarket receiver.
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Old 04-27-2012, 09:22 PM   #4
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While yesterday was the first time towing the Roo, that is one of the first things I noticed when unhooking. I can't lay the tailgate down. Quite a bit of difference to our old Starcraft. Everything on this trailer is just a wee bit closer to the TV.
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Old 04-27-2012, 09:23 PM   #5
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It would also help to know how much you need to extend the hitch to be able to open the tailgate. 3", 6",12" ???.

Along with what Herk was showing/saying is if you are using a wdh, you will have to increase the tension on the torsion bars to get the same leveling action on the tv which may require heavier bars.
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Old 04-27-2012, 09:28 PM   #6
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i am towing with a 2004 f150 screw 5.4l 4x4 lariat with 18 in tires. factory tow package. eaz-lift with 1000 lb bars and single right hand friction sway.

7200# gvwr, 8,700 max tow

2 5/16" ball on 12" in adjustable receiver.

about 6" too short

gcwr 14,500 lbs
prodigy brake controller

max tongue 1000 lbs??? cant find it right now

3.73 axle
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Old 04-27-2012, 09:48 PM   #7
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Quote:
Originally Posted by herk7769 View Post
An extension to your hitch will ALWAYS significantly reduce your tongue load allowed
Yes, and apparently by quite a lot (50%) if you believe this article.

Is the only thing you are hitting is the power jack and, if so, by how much? Some have turned the jack head around to make room for things.

A little out of the box here, but would you consider a new tailgate like the ones with a V notch that 5er owners use?
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Old 04-27-2012, 09:56 PM   #8
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Originally Posted by Triguy View Post
Yes, and apparently by quite a lot (50%) if you believe this article.
Whomever was giving the answer was IMO shooting from the hip. If the man only extended it 1/2" or 1" there is no possible way it would reduce the load carrying capacity by 50%.

The V tailgate sounds like a good idea! Even if you got one from the junk yard and modified it yourself.
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Old 04-27-2012, 10:02 PM   #9
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vgate is intriguing but i have a are tonneau cover

turning around motor is an option too.

will investigate both
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Old 04-27-2012, 10:04 PM   #10
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Is it hitting the jack or the bed ends? Youroo!!
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