Weird engine drone 93 mtx

[austindavis1993]

So i have a drone coming from my engine at about 3100 RPM. It does not appear to be pulley related and it is coming from the driver side, i can hear it clearest inside the cab. Any ideas/suggestions? Thank you!

 

[Dirk37]

Does it change if you clutch in? The only moving thing on the driver's side of the engine is the transmission.

 

[austindavis1993]

After further diagnostics, i have determined my buzz is coming from more than likely my alternator, it vibrates at 3100rpm and thats it. I just put this thing in just over a month ago.