FIRST TIME using 6 point leveling

Thanks for all the info and most places I camp the sites are pretty level to begin with. I've never used more than 3 2x6's stacked together and the front landing gear never more than a few lego blocks more than the other. I can't imagine it being mich different than my buddy's motorhome when he levels. He never uses any blocks unless it's muddy.

Can it be used to remove a tire?