Master Cylinder

[DJK04]

I am in the process of putting 4 wheel disc brakes on my truck it had originally drum brakes on the back. What master cylinder should I use? It would have to be a 4w disc master and proportioning valve but from which vehicle? Would one from a newer truck that came with 4w discs just bolt in? Or should I get one from a Camaro or Vette? Has anyone done this to there truck and had this same dilema?

[GM-Tech]

You might do better to post this in one of the regular truck forums. A modification like this is not something we would ever contemplate in service department, and so have no experience with it.