I use my floor jack to raise the rear of the car by placing it under the differential. I put the jack stands under the original jacking points on the body.

In front I position the jack under the metal plate on the front crossmember. I position the other two jack stands on the remaining two original jacking points.

When ever I use the floor jack to raise just one corner of the car I jack at that corners original jacking point. I add the jackstand as close to that point as possible before working on the car.

Randy