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Old 06-20-2013, 01:54 AM   #15
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Over on Escapees Henry posted some pics that pretty clearly show why you need an RV style hitch. They were of a broken trailer frame.
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Old 08-16-2013, 11:31 AM   #16
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So, if you have the air ride hitch, do you still need the air ride pin box?
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Old 08-16-2013, 11:56 AM   #17
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So, if you have the air ride hitch, do you still need the air ride pin box?
Probably not "required", but I sure like the way mine rides with both. Had my rig been set up with a standard pin, I would have at least tried it with just the hitch, but again, I like using both.

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Old 08-16-2013, 12:19 PM   #18
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How does registration work when you use a semi, is it registered as a semi or as rv. Semi very expensive, rv not so bad
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Old 08-16-2013, 12:52 PM   #19
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Semi registration is only expensive if you are commercial. In most states you can register as a private truck - not commercial. In some states you can title as a motorhome. Texas is one such state. You can also title as a private truck in TX.

In all cases that I know of insurance is still as a semi truuck. But since you are not commercial you pay far less. We have paid anywhere from $480-around $800 for full coverage.
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Old 08-16-2013, 02:29 PM   #20
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As Jack indicated, private truck is an option...SD is one state that allows that. In SD a big truck is either commercial or non commercial, and a normal drivers license is all that is required for non commercial. My KW is singled, which for insurance purposes drops it from a Class 8 to a Class 7, which allows National Interstate to insure it as a MDT, not a HDT....to the tune of $700+ annually. SD licensing for me is $175, based on year model and tonnage.

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Old 08-16-2013, 04:03 PM   #21
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So, if you have the air ride hitch, do you still need the air ride pin box?
Generally not necessary and sometimes not recommended at all.
Pin box hitches should be used on lighter trailers, up to 3,000 lb of pin weight. Beyond that they do not do squat, once you have to inflate them to 80-90 psi ("to get to the mark"), you don't have an air bag, you have a hard rubber doughnut. So beyond that weight you need an air hitch and the pinbox is not doing anything of value.
If you couple a pinbox (a short reaction hitch) with somethiong like an ET Hitch (long reaction hitch) weird things start occurring as the two systems can't get in sync.

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Old 08-17-2013, 08:06 PM   #22
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I have pulled my 5'er with the commercial hitch for a couple thousand miles, always aware of the stresses being transferred to the trailer frame. I recently had an "ET Hitch" installed, and it sits 48" behind the commercial hitch, which I left in place for weight. When the air bags are deflated, the surface of my air hitch is about 2" lower than the surface of the commercial hitch. In theory, the commercial hitch could still be used, but that would depend on whether the landing gear of a commercial trailer would have enough clearance with the frame having been extended. I'm guessing it wouldn't, but if your camper is lighter, you might not need as beefy a hitch as I did, and lighter one might be able to be installed without extending the frame. As Henry observed, a lighter trailer would also be a good candidate for the air pin box.

Another thing to consider would be swapping your commercial hitch for one used in the logging industry that has the side to side movement. While it wouldn't soften the ride for the trailer, it would take care of the torque problem, and still do the job for your commercial needs.
Jess
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