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Old 11-24-2013, 10:20 AM   #1
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300x12 Can you adjust the height of the king pin? Getting new truck its much higher

I successfully made it through my first year with my first 5th wheel. The trailer is now in the shop getting all the little things fixed while the trailer is still under warranty. I'm thinking of getting a new '14 Ram 2500 to pull the trailer. Only thing I'm worried about is the truck is probably 4" higher in the rear at least. I'm having trouble getting my truck under the hitch pin as it is even with 6" of lift under the landing gear.

The trailer is 2 hours from home so I can't check easily. I've never looked under the hitch pin cover, is there any adjustability in the height of the pin? Also how heavy/difficult is it to adjust?

Thank you,
Z
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Old 11-24-2013, 10:28 AM   #2
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The pinbox is mounted with 8 bolts and can be moved up or down one set of holes, each being about 1" difference in height. The problem will be that if you raise the pinbox and lower the hitch in the truck, the camper will be more level but you'll not have enough clearance between the truck's bed rails and the 5vr's overhang. If you want a taller truck and a level camper and maintain the clearance between them, you'll have to raise the camper's ride height.

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Old 11-24-2013, 10:50 AM   #3
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I had to drop the hitch two holes on my Pullrite and may drop the pin box one next year.
I still have more than six inches between the bed rails and bottom of the trailer.

I may end up putting a block between the springs and axles of the trailer if the pin box drop does not bring the trailer level.
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Old 11-24-2013, 11:22 AM   #4
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I had to drop the hitch two holes on my Pullrite and may drop the pin box one next year.
I still have more than six inches between the bed rails and bottom of the trailer.

I may end up putting a block between the springs and axles of the trailer if the pin box drop does not bring the trailer level.
How heavy is the pin? Do I leave it attached to the truck, remove the bolts and then move the trailer on the landing gear or is it not that heavy where I can hold it up without a lift?
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Old 11-24-2013, 11:30 AM   #5
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How heavy is the pin? Do I leave it attached to the truck, remove the bolts and then move the trailer on the landing gear or is it not that heavy where I can hold it up without a lift?
I do not know how heavy the pin box is, yet!
I would most likely try it like you have posted.

The electric landing legs may be worth more than I thought.
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Old 11-24-2013, 11:39 AM   #6
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It's heavy...around a 100 lbs. I lowered mine by myself using a couple of screwdrivers to hold the pinbox in place. It'd be much easier to do with two people. Leaving it attached to the truck just makes it more difficult IMHO.

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Old 11-24-2013, 11:42 AM   #7
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Leaving it attached to the truck just makes it more difficult IMHO.

Dave
Why is that?
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Old 11-24-2013, 02:16 PM   #8
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I helped a friend move his pin box up a couple weeks ago. Dave is right I would not want to try with the hitch hooked up. There would be very little room to move around. In this case the pin box was stuck in the mounts and had to be pursuaded with a dead blow to move it up. It would help if you had at least two people. We also had a fork lift that we used to hold most of the weight.
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Old 11-24-2013, 02:22 PM   #9
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hmm, ok. Maybe I could back the tailgate of my truck up to limit the amount of lifting atleast.
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Old 11-24-2013, 02:39 PM   #10
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I was thinking about taking the tailgate off and using my three ton floor jack on a 3/4 inch sheet of plywood I have to lower/raise the pin box.
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Old 11-24-2013, 02:55 PM   #11
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we are on the same page, I was thinking the same thing. lol
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Old 11-24-2013, 02:57 PM   #12
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Some 2x4 legs cut to length with a cross brace to help hold the weight and three people would work better. It was just that we had a fork lift available so we used it. Also both of us have bad backs and were just being extra careful. Once two bolts are installed it is no big deal.
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Old 11-24-2013, 03:06 PM   #13
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I could round up some help but I tend to be a "do it myself so no one else gets hurt" kind of guy.

I have some time to ponder this job and in the end it may not be enough.
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Old 11-25-2013, 01:18 PM   #14
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I know I am not in the right spot but have been looking over here some because we are thing about switching to a XLR, anyways it's not real hard to move. My wife and I did ours in the driveway. I just took the bolts out and placed screwdrivers in the holes to hold it while I removed the other bolts.
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