On Fri, 2011-07-08 at 13:24 -0600, Tom Buese wrote:

>  Double shear means shearing force directed from 2 opposite directions
>  while single shear would only have the force exerted from one side.

Well jeepers. I dunno. I'm no mechanical engineer. Maybe the closeup
view of the running gear in the Hi Lift manual <http://goo.gl/C1kaS>
will help with that.

>
> Mr. BZ-Collapse of skybridge in Kansas City Hyatt many years ago
>  killing dozens, cause by shear failure of suspending rods/bolts, IIRC.

Oh swell. Now look at what you've done. Everyone who freaked out at the
thought that I might take a jack near my van is gonna be all in a tizzy.

-- RJS