Maybe I did not make myself clear, but I jack up the front end of my BE with a 2 x 4 that extends from frame rail to frame rail and it positioned under the sheet metal which connects the two at the front. This allows me to position a jack under the wood, and jack up the front end. THEN I put a jack stand under each of the frame rails just behind the bumper attachment points. Note, when I position the jack stands, I do not put myself in harms way, just in case the wood or the jack gave way. I then lower the jack and take it out from under the car. <span style="font-weight: bold">I too, would not think to work under the car, with it partially supported with wood, or by a hydraulic jack.</span> After the BE is safely on the jack stands, I give the car a good shake, just to be sure it is solid.
Cheers,
Scott in CA