On Tue, 30 Oct 2007 13:57:52 -0500, Ignoramus1285
wrote:

On 2007-10-30, Leon Fisk wrote:
On Tue, 30 Oct 2007 10:20:22 -0500, Ignoramus1285
wrote:

Wayne, thanks. I think that I will just give up.

i

What kind of bumper do you have? Reese style square receiver
maybe?

I would look into building one from scratch to use the
square receiver and another good size support (like another
square tube to add bracing support). Some modification to
the HF versions could be done too. Most square receivers are
good for ~1000 lbs tongue weight.

But not for twisting, and also, the crane should be on the side, not
in the middle.

i

That is why I mentioned you need an outrigger. It will add
support and stop the twisting. Whatever you lift will be
twisted around and dropped on the bed anyway, so think about
it, do you really need to have it off to the side?

You could build it slightly offset from the center too with
an outrigger. It really just depends on how solidly you
mount the extra tube/receiver. If the second tube is mounted
as good as the hitch you could center your crane over that
tube and use the hitch as the out rigger, if you really want
it off to the side.

I have a farmer neighbor that carries a full-size 4x4 ATV
off the back of his truck with a dual tube system. It hangs
out the full length of the ATV and he uses separate ramps to
load it. Don't under estimate how much a good tube system
can support...

--
Leon Fisk
Grand Rapids MI/Zone 5b
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