newbie with Question

[69vetteside]

Hi all,i just recently picked up a 69 C10 stepside.the guy i got it from was the second owner in australia and he had no idea of what has been done to the truck suspension wise other than it was lowered.
how can i tell if it has dropped spindles in the front and to what extent?
it has a mildly worked 350/turbo 350 and 12 bolt diff,disc brake conversion on front.
original red color with 20"x9''rims wearing 255x35 tires.
Was orginally purchased by the Colorado state uni , Fort Collins.
still has the warranty and protecto plate with it.
will endeavour to get photo up asap