All you have to do is drive onto some 2X6. Gives you almost 2 extra inches with no work.The problem is clearance. There are low profile, long reach floor jacks, and if I had one of those, your method would work for sure. I now know (before I took this sequence of pictures) that I can get to the rear central jack point right off the bat. But when the rear end is in the air, there's no clearance to get my jack to the front central jack point.