[MARKDTN]

Originally Posted by SS Tim

The factory service manual should be where you start, and likley all you will need for brake work. If you want to get deeper into things beyond changing parts the overhaul manual will be needed as well. An assembly manual is helpful to go to in a "big picture" way and for specifcs. Parts and Illustration manuals have a lot of information but are pricy and the parts manual can be cryptic to those new to GM parts structuring.

I agree-the factory GM manual is all you need.