I have a '99 Chevy c2500 8cyl gas 2wd. The book says
to drain/replace the (orange) coolant every five years.
When I got it done in '04 I took it to a service station and
it was a royal pain for them and I'm not sure they got all
the old fluid out. I'd like to do it myself and get it done
right this time.

Can one of you experts tell me the exact procedure and
any tools I need to do it right?

Thanks in advance for the help.

Ken Rogers