how to change king pins on 1987 daf roadrunner 7.5 tonner Do they need ream?

take top cap off, remove lower steering arm with thrust bearing,and [with support under axle] you should be able to knock pin out -downwards. not sure if they need to be reamed,but if they do you will get it done at a local engineering shop.shims for adjusting excess lift are under thrust bearing.

k
April 2009