I have forgot the exact details and pictures cant seem to be found but changing the mounting of the ball joint from underneath to ontop of its chassis location gives you a drop spindle type effect.
I did it to 3 of my cedrics all without any issues although it needs to accompany good shocks or uprated springs to reduce all the suspension travel
Edit: lower ball joint. memory fading with old age haha. picture shows original location and if mounted on top where the nuts are gives you drop