In my experience with my truck the past almost 7 years of ownership, the slaves get changed 3:1 compared to masters. Not always due to failure, but process of elimination(bad master) or good measure since I was in there already(bad trans/engine swap). Just swap the slave...it's always a ticking timebomb.
In regards to order of operations/instructions on doing the job, get yourself a Chilton's or Haynes workshop manual. It's how I did my very first RWD clutch swap and please do search through the forum. I've posted quite a number of times very specific tips and tricks on the process.
PS: Please create a signature telling us a little about your truck....year, 4x4 or 2wd, engine, trans, mods, etc... It helps us help you.
'01 XLT disguised as a '03 Fx4 Level II
Big. Loud. Slow. Bright.