Yeas- caster and camber would be a crap shoot without the engine and body. But for toe in I use two carpenters squares. You need a good flat floor. Place a square long side on the floor and short side aligned with a specific groove in the tread pattern. One square on each side of the car and use a tape to measure between the vertical short legs of the squares. You can lock the tape and just lay it on the floor. Move to the other side of the wheels (front to back or vice versa) and repeat with the vertical short legs of the squares aligned with the same groove in the tread pattern. Do a little arithmetic and you have your toe in/toe out measurement. Adjust tie rods ends and repeat measurement. Done it that way a number of times and had not problem.
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