>Don't know about home pits, but almost every Jiffy Goob 10 minute oil
>drain specialist shop I've seen has a pit for the "technician" to go under
>and drain the oil pan.  It's when he tries to install the oil in the same
>place he drained it is when I start scratching my head.

Best set of ramps I ever saw was the ramps they had at a grocery warehouse
I used to work at in Little Rock.  The shop bought a bunch of 2x12's and
nailed/bolted them together in laminated form vertically after cutting the
desired ramp angle and calculating what width they needed.  To same some
wood cost, they left gaps in every other runner.  Seems to me if you offset
your pieces, you could make a ramp that could hold the whole van in the air
safely, but they would be heavy.  I know we had hundreds of heavy bob
trucks and dual axle delivery trucks up on that lifting ramp over the years
and weather ended eating up the wood before the weight of the trucks did.

DM&FS