Need to take all the wheels off my '91 GL to get new tires.  The tires
on there now are completely incorrect, passenger tires and the fronts
are smaller than the rears.  To get to the tire shop I need to
traverse some twisty roads and a stretch of highway and I'd just
rather take the wheels to the shop in another vehicle since that is in
no way inconvenient.

Can I lift the entire front or rear using a floor jack in the center?
Or should I raise it side-to-side?

Should I put the jack stands under the normal jack points, or
somewhere else?

Allan