Brake Noob

Get yourself a factory shop manual. Bishko and a few others have print versions. CDs and downloads are another option.
Know that 1969 was the first model year for a new system of drum hardware. Can't ref '68 for drawings or parts.
Don't use compressed air for cleaning brake dust, just wash it down.
A few specialized tools help, although I got away with not having for a long time.

I have a factory print 69 manual. Wash, yes the whole engine bay and undercarriage needs a good wash. I'm going to try and get away with washing it in my neighborhood... Dang HOA.

I have New brake drums -- 10" x 2 1/4" for the Fronts
And 10" x 1 3/4" for the Rears -- and
++ N.O.S. ++ Asbestos ++ brake shoes for Fronts & Rears -- which will give you nice Smooooooth
Braking -- and doesn't rip up brake drums like the new garbage of today does.......

I don't understand the NOS and Abestos portion lol.

I'm thinking I'm going to do Disc fronts and redo the drums in the rear until I swap in my new front end and 8 3/4 rear with a 489 rear.