Can steering gear worm seal be removed in car?

I've got the same thing going on with mine. I plan on taking it out the same way you did. Sheetrock screw and a little prying Maybe with a screwdriver? My question is can you just buy the seal for it without buying a kit? If so did you get one and where did you get it?
Just about every seal, bushing, or bearing can be purchased individually by dimension.