I would agree with John. It could have just jumped from one unnatural position to another given seemingly poorly reamed bushes. You could try squirting a little more grease into kingpin nipples then taking car for a good drive over bumpy roads to loosen up suspension. Jacking, dropping then rolling car back and forwards several times whilst everything is loose will allow for an average static position and realistic check of rebound spring situation.
FWIW correctly reamed kingpin bushes should just allow a greased kingpin to drop slowly through stub axle under its own weight, before re-assembly.
