01 7.3 blue/grey smoke while driving!? PLZ HELP ASAP

[rollthecoal7.3]

My 01 has 141k on the clock, I replaced the injector O rings a while back and it made her run like new again...now while driving to LA/Glendale CA i started losing a little power and noticed it would puff blue/grey smoke randomly...after getting to the hotel(which took 3 hrs longer because I was being super easy on it I heard the turbo grinding and chattering when it shut down..its the stock turbo had a K&N when I bought it which I changed first thing..will the turbo failing cause the smoke issue!!!????? Please tell me im not into something serious...truck starts/idles fine.. If it is the turbo being the only prob anyone know where a good place to get an aftermarket in the area??

[Turbostang500]

Remove the intake from the turbo and spin it with your fingers. If it rubs the housing, it is likely junk and the seals are probably leaking oil.

Don't know on buying a replacement.