Anyone W/ Gmt900 Have There Brake Master Cylinder Quit?

[Pool Runner]

I had to take my '08 GMT900 2500HD w/6.0L gas into the dealer last week because I smelled something burning in the front of my truck, well I had two mystery fluids under the hood. A greenish/ yellow fluid on top of my alternator where the blue ball point pen is showing. And a grease from under the Hydroboost where the blue pen is showing. Both of these fluids showed up at the same time to the best of my knowledge. The worst of it was a slimy mess on everything below my brake master cylinder, frame rail, wires etc... I first got a call from the dealer saying they could not duplicate my concern then later nothing was wrong. I went back down and showed where oil was leaking like a sieve from the hydroboost on the master cylinder. They then ordered up a new part and replaced it. Two weeks later and the new Hydroboost is leaking in the same spot. Anyone have a similar problem or know what might be going on? My truck only has 8K miles on it and I'm worried. This is my first GM product and so far I'm concerned.

 

This is where the oily fluid that was all over the driver side of the engine bay was leaking from and now leaking again.

 

Hydroboost Leak

 

 

This is where I had a greenish color fluid, I have since cleaned it off to see if it comes back, so far it hasn't

 

Alternator

 

 

Any help greatly appreciated in advance.