* A repair manual specific to your 1979 Malibu: A Haynes or Chilton repair manual for that year and model will almost certainly have a detailed brake system diagram. These are readily available at auto parts stores and online retailers.
* Online parts catalogs: Some online parts retailers (like RockAuto, AutoZone, etc.) allow you to select your vehicle year, make, and model, and often provide diagrams of the braking system when you browse parts within that system (e.g., when looking at brake lines themselves). The diagrams might not be as comprehensive as a repair manual, but they could be helpful.
* Local auto parts store: The staff at a local auto parts store might have access to diagrams through their computer systems or have printed material they can share.
* Chevrolet forums or online communities: Search for Chevrolet Malibu forums or online communities dedicated to classic cars. Someone there might have a scan of a diagram they're willing to share.
Important Note: Because brake systems are critical for safety, if you're unsure about anything while working on them, it's best to consult a qualified mechanic. Incorrect brake line installation can have very dangerous consequences.
