When I put mine in years ago, I put them both in to both point to the outside. I couldn't get enough CAMBER into my alignment till I put those offset bushings in. What they did was put my upper ball joint farther away from the car. You really don't know if you need them till the shop gives you a printout. If you make friends with the alignment guy, maybe they can give you a checkout to see if the old bushing will adjust enough to give the correct caster and camber settings. If they don't, then they can tell you which bushings have to point a certain direction.
Rob (understand what I just rambled?)
