How is the spare tire removed?

I don't know for certain, but I believe the jack has a long armed crank with a flat connector. Looking under the bed, just above the tire, you'll see a groove that the flat connector goes into. You slide the baby in there and crank until the tired comes out.

how do i remove the spare tire on my 2004 suburban?

your truck came with a round about thee foot rod stick it in the whole next to tag line it up and drop