We installed this because our 1500-lb fulton standard type was ... umm .... well, broken (leave it at that).
Our F2 is working fine and it is sooooo much better than a standard type. Cranking effort is lower and it is very sturdy (our tongue weight is likely over 1000-lbs). I would never suspect any potential problems with the crank, just by having the unit in my hand. Of course, it's only been on for a few weeks.
I do recall that one of the member here did have something break on his (at the crank?). Other than that, I have not picked up on any "they all do that" issues, when I was researching before I purchased mine.
On the new one, the two height adjustment lock bolts (one Allen, one hex) were not a problem. Just use the proper allen-head bit (and a rachet or breaker bar) and apply pressure squarely and evenly.
The weld-on mount plate is available separately from Fulton (does not come with it), so you don't
have to make one like I did. I just didn't want to wait to order it, since our jack was currently broken.
It is lifetime warrany, but you are not likely to find repair parts at the local shop.
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Gordon Arnold
New Hampshire
2003 268 Vista ..................................................................Prior: 97 245 Sundowner