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Old 06-05-2019, 08:44 AM   #1
4x4Fun
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Hitch advice

Iím new to the fifth wheel world. I have a 2015 Ford F-350 XL 4x4 SRW with all available towing and camper packages. I bought it used. It is lifted quite a bit, has a 100 gallon bed tank plumbed to the main, and a toolbox behind that. I just bought a 2009 Keystone Raptor 3602RL as a functioning DIY project. Iím getting the rig delivered to my house since I donít even have a hitch yet, and there seems to be LOTS of options there! Iím sure the trailer needs to be level when in tow, but how level is level enough? Iím worried my truck is lifted too much. Iíve heard you can flip the axles on the trailer to get some more height at the hitch. Then Iím concerned about clearance on the toolbox when turning. Any advice would be appreciated as I donít even know what I donít know. Thanks!
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Old 06-05-2019, 09:06 PM   #2
wingnut60
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Welcome to the forum!

Lifted trucks are always problematic getting the towed unit to sit level. Logically, you can only lower the truck or raise the trailer. Flipping the axles is most common way to lift the trailer, but can also consider a spacer tubing between the frame and the spring mounts. If you were to put the spacer tubing in, any competent spring/axle shop can do this, and it would be a great time to reinforce the spring mounts.
In addition, depending on the quality of the lift install, it in itself may cause towing problems, guess that has to wait on getting hitched up.
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Old 06-06-2019, 08:02 AM   #3
Notanlines
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4x4 fun, what is the cargo capacity of that F350 beast you’re going to be towing with? From the sticker on the door post....
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Old 06-07-2019, 10:22 PM   #4
wingnut60
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Along with that question from Notanlines--what is the GVWR of the trailer you bought?
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Old 06-08-2019, 04:32 AM   #5
4x4Fun
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Why would the spring mounts need to be reinforced? Just want to learn some I can test service providers’ credibility when I talk to them.
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Old 06-08-2019, 05:18 AM   #6
4x4Fun
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GVWR=11500. Rear GAWR=7000. Brochure says max fifth wheel trailer weight is 15900.
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Old 06-08-2019, 05:28 AM   #7
4x4Fun
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Brochure says trailer is 13000 and 3500 max cargo.
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Old 06-08-2019, 09:51 AM   #8
Notanlines
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4 x 4, this won't be what you want to hear, but you don't have near enough truck. Just the pin weight, 5th wheel hitch and your aftermarket tank put you a good 1000 pounds out of the envelope. Probably more than that when you're ready to go. And you're going to tow with a lifted truck? Not even close to a good idea. I'm just sayin'...
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Old 06-08-2019, 10:00 AM   #9
wingnut60
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Anytime you raise the center of gravity, you put more stress on the suspension components in turns, expecially sharp backing turns. Internet has many mentions of factory spring mounts failing--most towables are built to minimum specs needed, with little margin for increase in stress, that is why I suggest if adding height, you reinforce/rebuild the spring hangers.
Also, if the GVWR of the trailer at 13000, you could have as much as 2600lbs of pin weight. With a 100 gals of fuel in the tank, the trailer loaded for camping, you will probably be over the RAWR and over the rear tire capacity--tho, with a lift, the tires MAY have more carrying capacity than normal. Check it all out--towing with a lifted truck can be hazardous to your health and that of others....
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