any lift at all?

They should give 2" or a bit more.
They give a 2" lift on a 4-door and that's a heavier vehicle, so a 2-door should be a bit more.

if you have some springs handy just try them out.  i've gotten different feedback from various people on what would happen with this setup.  if the gv the coils come from is a beat pos you'll get less than from a nice shape lower mileage ride with less abuse.  i personally picked up some 2003 xl7 rear coils for my 03 2dr tracker, i have not installed them yet though.  they should, repeat should give 3 inches of rear lift.  but i really will not know until install them.  pretty crappy andwer uh?!  it's cause there will be a variance on most rigs with the used parts coming from different sources.  i've been told 1 inch for those springs.  but the OME's for a 2dr or 4dr tracker are 285mm in length and for the gv are 315mm in length.  so they are taller and have a stiffer spring rate....  comon, try it out, i'm thinking about the gv springs for the front of mine also..!

can you use gv springs all around or can you only use them for the rear? i dont really know much about suspension on these. my rig is stock and was looking for options. cuz if you can use them all around i might go that route

you can use all 4

i only picked up the xl7 rears because they are stiffer and i want to be able to carry a load while still retaining some lift height.  i'm considering the gv's for the front instead of coil my 1.5 coil spacers.