I think my whole frame would bend before my bolts sheared or pulled through and I have seen bent frames on CTD dodges from people thinking their truck was a Kenworth or Mack. I have heard of fifth wheel hitches pull through the holes do to improper size drill bits...To Large. Same thing?
How heavy was the NH Skid Steer? Some are up there in weight. An average size NH skid steer runs 7K to 8K wet. The big models are around 7800 with a heavy duty bucket. Plus filled / foamed tires or tracks over the tires could push it higher. The bare loader plus the trailer weight could easily put 1000 pounds on the hitch, probably more with tools, fuel, ice water a few bags of ready mix..........
A F-250 Superduty can't handle most skid steers with out spring bars or a class 5 hitch. The hitch was probably rated for 600 pounds, maybe 800 pounds vertical. A small goose neck and a F-250 can handel the load. Just because the truck can pull the weight dosen't mean that the hitch can carry the weight without a load distibition device. Now if you have a Reese Titan, then you'll be stylin...but will probably still have too much weight on the back axel, but at least the hitch will stay on the truck. /forums/images/graemlins/grin.gif
If I put a 7K bobcat on a 6 ton trailer, I would exceed the limits of a Class 4 hitch on any truck without a weight distribution set up. Around town, I would get a dually with a Class 5 hitch which should be able to handel 1000 to 1200 pound tongue loads and 10K trailers with out exceeding the load ratings of the hitch. With a F-250, you could quickly put to much weight on the rear axel without a proper spring bar hitch. Because most people will have cargo or tools in the bed. If you overload a hitch enough times it will break something, sooner or later. A dually could handle the tag trailer weight much better with less wear on the rear tires and springs of a SRW. Any thing over 8K really works a Class 4 reciever hitch hard and most manuals will require a weight distribution device on trailers over 3 to 5 thousand pounds. Over 10K trailers should always be goose neck, unless you have a big truck like a F-550 or larger with a pintel hitch.
I looked on th NH web site and a 42 to 52 hp Skid Steer weighs about 5500 pounds with standard bucket. A 67 hp one is over 7000, thats about the size I'm acustomed too. Add some fuel trailer weight some dirt a HD tooth bucket..... Thats why I used a F-650. No worry's.