Need Front Disc Brake help on my 68

[jover]

Hey Everyone: Need some pro info from my favorite truck guys. I have a 68 Chevy Stepside, and I've been offered a 77 1/2 ton GMC for parts. My question is, I know this truck has disc brakes and I need to know exactly what I need to take off the 77 and how hard a job it will be to change over. I've heard its a bolt on and pretty easy, but I'm just not too sure. A long time ago I read a post on here about this very same topic but can't remember too much about it. Can anyone help me ASAP, need to take what parts I need before my local junkyard sends it to its demise. Thanks JoAnne