On Mon, 11 Aug 2014 06:45:43 -0400, "Jim Wilkins"
wrote:

wrote in message
.. .
But this assumes an "engineered" solution for each and every
vehicle.
If your vehicle had a solid engine cradle or other substantial
crossmember you can already raise the entire front end at once with
an
hydraulic trolley type floor jack,

I've heard that you can lift the rear of a pickup with a jack centered
under the differential. I never risked trying it.
-jsw

Did it all the time as a mechanic. 3 ton or better trolley jack under
the diff - pump it up and pup the jack stands in.